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# Build artifacts
*.o
*.d
*.elf
*.fap
*.map
dist/
# ufbt
.ufbt/
# IDE
.vscode/
.idea/
*.swp
*.swo
*~
.DS_Store
Thumbs.db
# Python bytecode
__pycache__/
*.pyc
# OS garbage
.DS_Store
Desktop.ini
CONTRIBUTING.md
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# Contributing to TagTinker
Thanks for wanting to help out. Here's how to get involved.
## Getting started
1. Fork the repo
2. Create a feature branch: `git checkout -b my-feature`
3. Make your changes
4. Test on owned lab hardware if possible (or at minimum, ensure `ufbt build` passes)
5. Commit with a clear message
6. Open a pull request
## Code style
- C99, no C++ features
- 4-space indentation (no tabs)
- `snake_case` for functions and variables
- Keep functions short and focused
- Comment non-obvious logic, but don't over-comment
## What we're looking for
- Bug fixes (especially memory-related — the Flipper has very limited heap)
- New ESL tag compatibility (different sizes and display variants)
- Better compression or transmission reliability
- UI/UX improvements
- Documentation improvements
## Project boundaries
- Keep contributions aligned with educational use on ESL hardware the operator owns.
- Do not add documentation aimed at store use, retail deployment, or third-party systems.
- Prefer generic ESL wording over store- or brand-specific framing in user-facing docs.
- Preserve credit to furrtek's reverse-engineering research where relevant.
## What to avoid
- Don't break existing functionality without good reason
- Don't add external dependencies — this runs on a microcontroller with strict constraints
- Don't submit AI-generated code without reviewing and testing it
- Keep memory usage minimal — every byte counts on the Flipper Zero
## Reporting issues
Open a GitHub issue with:
- What you expected to happen
- What actually happened
- Your Flipper firmware version
- The ESL model you're using (if applicable)
## Hardware safety
Be careful with repeated refresh or LED test loops on your own tags. Power and display behavior vary by model, and long-running tests can have side effects.
## License
By contributing, you agree that your contributions will be licensed under GPL-3.0.
LICENSE
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copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.
README.md
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# TagTinker
<p align="center">
<strong>Educational ESL research tools for Flipper Zero</strong><br>
<sub>Protocol study, signal analysis, and controlled display experiments on authorized lab hardware</sub>
</p>
<p align="center">
<img alt="License: GPL-3.0" src="https://img.shields.io/badge/license-GPL--3.0-blue.svg">
<img alt="Platform: Flipper Zero" src="https://img.shields.io/badge/platform-Flipper%20Zero-orange.svg">
<img alt="Status: Research Project" src="https://img.shields.io/badge/status-Research%20Project-informational.svg">
</p>
---
<img src="https://github.com/i12bp8/TagTinker/blob/main/demo.jpg">
<p align="center"><sub>Owner-authorized lab ESL display experiment</sub></p>
## Overview
TagTinker is an educational electronic shelf label (ESL) research project for Flipper Zero.
It is intended solely for:
- protocol study,
- signal analysis,
- interoperability research,
- and controlled display experiments on ESL hardware that you personally own or are explicitly authorized to test.
This project is maintained as a home-lab and research tool. It is **not** intended for use against deployed retail systems, commercial infrastructure, or third-party equipment.
---
## Important Notice
Use this project **only** on hardware that:
- you personally own, or
- you have explicit permission to study and test in a controlled environment.
Do **not** use this project:
- in stores,
- on deployed retail systems,
- on third-party equipment,
- on production infrastructure,
- to alter prices, product information, or operational displays,
- to interfere with commercial operations,
- to bypass pairing, authorization, access controls, or security measures,
- or in any manner that is unlawful, unauthorized, or harmful.
The publication of this source code does **not** grant permission to access, modify, transmit to, or interfere with any third-party system or device.
---
## Project Scope
This repository is limited to research and lab use, including:
- educational study of infrared ESL communication,
- display and protocol experiments on authorized test hardware,
- local tooling for preparing monochrome display assets,
- controlled diagnostics and signal observation for interoperability research.
This README intentionally does **not** include installation, deployment, targeting, or operational instructions for use against deployed systems.
---
## Features
- Lab-only ESL protocol study tools
- Controlled display experiments for authorized test hardware
- Single-device research functions for text, image, test-pattern, and LED-response experiments
- Local image preparation utility in `tools/tagtinker.html`
---
## Responsible Use
TagTinker is published for legitimate educational, research, and interoperability purposes only.
You are solely responsible for ensuring that any use of this project complies with:
- applicable law,
- property rights,
- contractual restrictions,
- operator policies,
- and all required permissions and authorizations.
If you do not own the hardware or do not have explicit authorization to test it, do not use this project on that hardware.
---
## No Affiliation
This project is an independent research effort.
It is **not** affiliated with, endorsed by, authorized by, or sponsored by any ESL manufacturer, retailer, or system operator.
Any brand names or product names referenced in the source tree or documentation are used only where necessary for descriptive, compatibility, or research purposes.
---
## Security and Disclosure
This repository is intended to support lawful research and interoperability work.
If you are a vendor, operator, or security researcher and believe some part of this repository raises a concrete security concern, please open a responsible disclosure issue or contact the maintainer privately with sufficient detail.
---
## Distribution Policy
This repository contains source code for research purposes.
To reduce the risk of misuse, this project does not provide:
- hosted binaries,
- prebuilt application files,
- automated deployment packages,
- or step-by-step operational instructions for use on deployed systems.
---
## Credits
This project builds on public reverse-engineering research by [furrtek](https://github.com/furrtek/PrecIR) and related community work.
Please see the upstream project for prior research context and historical protocol analysis.
---
## License
Licensed under **GPL-3.0**.
See [`LICENSE`](LICENSE) for details.
If this project incorporates or adapts GPL-covered upstream work, the corresponding notices and licensing terms apply accordingly.
---
## Warranty Disclaimer
This project is provided **“as is”**, without warranty of any kind, express or implied, including but not limited to merchantability, fitness for a particular purpose, and noninfringement, to the maximum extent permitted by applicable law.
---
## Maintainer Statement
This project is maintained as a narrowly scoped educational and research repository.
The maintainer does not authorize, encourage, or condone use against third-party devices, deployed retail systems, or any environment without explicit permission.
application.fam
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App(
appid="tagtinker",
name="TagTinker",
apptype=FlipperAppType.EXTERNAL,
entry_point="tagtinker_app_main",
requires=["gui", "notification", "dialogs", "storage"],
stack_size=4 * 1024,
fap_icon="tagtinker_10px.png",
fap_category="Infrared",
fap_author="i12bp8",
fap_description="Educational ESL study tool for owned hardware",
fap_version="1.1",
sources=[
"tagtinker_app.c",
"scenes/*.c",
"protocol/*.c",
"ir/*.c",
"views/*.c",
],
)
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ir/tagtinker_ir.c
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/**
* TagTinker IR transmitter - implementation (v2)
*
* Drives the Flipper Zero's built-in IR LEDs at ~1.255 MHz carrier
* for the ESL pulse-position modulation (PPM) protocol used here.
*
* v2 changes from v1:
* - Removed TIM2 ISR approach (TIM2 conflicts with Flipper's IR RX subsystem!)
* - Uses DWT cycle counter for precise timing instead (zero timer conflicts)
* - Properly handles TIM1 bus state (was crashing if already enabled)
* - Non-blocking repeat loop with cancellation support
*
* Architecture:
* TIM1 Channel 3N: 1.255 MHz PWM carrier on built-in IR LED (PB9)
* DWT->CYCCNT: Cycle-accurate timing for PPM symbol encoding
*
* CRITICAL: The built-in IR LED is on PB9 = TIM1_CH3N (complementary output).
* NOT CH3! The carrier is gated by toggling OC3M bits in TIM1->CCMR2
* (which control both CH3 and CH3N). The firmware uses PWM2 mode.
* For CH3N (complementary), Force Inactive = LED off, PWM2 = carrier on.
*/
#include "tagtinker_ir.h"
#include <furi.h>
#include <furi_hal.h>
#include <furi_hal_bus.h>
#include <furi_hal_resources.h>
#include <furi_hal_gpio.h>
#include <furi_hal_cortex.h>
#include <stm32wbxx_ll_tim.h>
/* ─── Carrier configuration ───
* Target: 1.25 MHz carrier for ESL signaling
* Flipper: 64 MHz system clock, TIM1 PSC=0
* ARR = 51-1 = 50 → 64MHz/51 = 1,254,901 Hz (+4.9 kHz off, within ±10kHz)
*/
#define CARRIER_TIM TIM1
#define CARRIER_ARR (51 - 1)
#define CARRIER_CCR 25 /* ~50% duty cycle */
/* ─── PP4 timing in CPU cycles (64 MHz) ───
*
* Protocol reference: ESL Blaster FW03 ir.c, furrtek.org ESL page
* Base period t = 1/32768 Hz = 30.518 µs
*
* Burst duration: ~40 µs = 50 carrier cycles at 1.25 MHz
* ESL Blaster: 4 ticks × 10.08µs = 40.32 µs
* Our value: 40 µs × 64 = 2560 cycles
*
* Symbol gap durations (index = 2-bit symbol value):
* From ir.c pp4_steps ordering:
* pp4_steps[0] = 5 ticks → sym 00: 6 × 10.08 = 60.48 µs
* pp4_steps[1] = 23 ticks → sym 01: 24 × 10.08 = 241.92 µs
* pp4_steps[2] = 11 ticks → sym 10: 12 × 10.08 = 120.96 µs
* pp4_steps[3] = 17 ticks → sym 11: 18 × 10.08 = 181.44 µs
*
* Converting to 64 MHz cycles:
*/
#define PP4_BURST_CYCLES 2581 /* 40.33 µs */
static const uint32_t pp4_gap_cycles[4] = {
3871, /* Symbol 00: 60.48 µs */
15483, /* Symbol 01: 241.92 µs */
7741, /* Symbol 10: 120.96 µs */
11612, /* Symbol 11: 181.44 µs */
};
/* ─── PP16 timing in CPU cycles (64 MHz) ───
* Derived from esl_blaster ir.c: TIM16 steps of 4us.
* Gap values (27us to 107us) mapped to 16 symbols.
* Burst: 21us * 64 = 1344 cycles.
*/
#define PP16_BURST_CYCLES 1344
static const uint32_t pp16_gap_cycles[16] = {
1728, // 0000: 27µs
3264, // 0001: 51µs
2240, // 0010: 35µs
2752, // 0011: 43µs
9408, // 0100: 147µs
7872, // 0101: 123µs
8896, // 0110: 139µs
8384, // 0111: 131µs
5312, // 1000: 83µs
3776, // 1001: 59µs
4800, // 1010: 75µs
4288, // 1011: 67µs
5824, // 1100: 91µs
7360, // 1101: 115µs
6336, // 1110: 99µs
6848 // 1111: 107µs
};
/* ─── Module state ─── */
static bool ir_initialized = false;
static volatile bool ir_stop_requested = false;
/* ─── Carrier control (TIM1 OC3M register manipulation) ─── */
static inline void carrier_on(void) {
/* OC3M = PWM Mode 2 (111) — matching Flipper firmware.
* For CH3N (complementary): PWM2 inverts → CH3N gets active-low PWM = carrier burst.
* This matches INFRARED_TX_CCMR_HIGH in furi_hal_infrared.c */
uint32_t ccmr2 = CARRIER_TIM->CCMR2;
ccmr2 &= ~(TIM_CCMR2_OC3M);
ccmr2 |= (TIM_CCMR2_OC3M_2 | TIM_CCMR2_OC3M_1 | TIM_CCMR2_OC3M_0); /* PWM mode 2 */
CARRIER_TIM->CCMR2 = ccmr2;
}
static inline void carrier_off(void) {
/* OC3M = Force Inactive (100) — CH3N goes idle = LED off.
* This matches INFRARED_TX_CCMR_LOW in furi_hal_infrared.c */
uint32_t ccmr2 = CARRIER_TIM->CCMR2;
ccmr2 &= ~(TIM_CCMR2_OC3M);
ccmr2 |= TIM_CCMR2_OC3M_2;
CARRIER_TIM->CCMR2 = ccmr2;
}
/* ─── Cycle-accurate delay using DWT ─── */
static inline void delay_cycles(uint32_t cycles) {
uint32_t start = DWT->CYCCNT;
while((DWT->CYCCNT - start) < cycles) {
/* Busy wait — handles wraparound via unsigned subtraction */
}
}
/* ─── Send a single PP4-encoded frame ───
*
* PPM on-air sequence for N symbols:
* [burst][gap₀][burst][gap₁]...[burst][gapₙ₋₁][burst]
* = N+1 bursts with N gaps, each gap encoding one 2-bit symbol.
*
* Data is sent LSB first, 2 bits at a time per byte (matching ir.c).
*/
static void send_frame_pp4(const uint8_t* data, size_t len) {
for(size_t byte_idx = 0; byte_idx < len; byte_idx++) {
uint8_t current_byte = data[byte_idx];
for(int sym = 0; sym < 4; sym++) {
uint8_t symbol = current_byte & 0x03;
current_byte >>= 2;
/* Burst (carrier ON) */
carrier_on();
delay_cycles(PP4_BURST_CYCLES);
/* Gap (carrier OFF) — duration encodes the symbol */
carrier_off();
delay_cycles(pp4_gap_cycles[symbol]);
}
}
/* Final burst (N+1th burst, required by PPM protocol) */
carrier_on();
delay_cycles(PP4_BURST_CYCLES);
carrier_off();
}
/* ─── Send a single PP16-encoded frame ───
* Encodes 4 bits per symbol, resulting in half the pulses of PP4.
*/
static void send_frame_pp16(const uint8_t* data, size_t len) {
for(size_t byte_idx = 0; byte_idx < len; byte_idx++) {
uint8_t current_byte = data[byte_idx];
for(int sym = 0; sym < 2; sym++) {
uint8_t symbol = current_byte & 0x0F;
current_byte >>= 4;
/* Burst (carrier ON) */
carrier_on();
delay_cycles(PP16_BURST_CYCLES);
/* Gap (carrier OFF) */
carrier_off();
delay_cycles(pp16_gap_cycles[symbol]);
}
}
/* Final burst */
carrier_on();
delay_cycles(PP16_BURST_CYCLES);
carrier_off();
}
/* ─── Public API ─── */
void tagtinker_ir_init(void) {
if(ir_initialized) return;
/* Safely claim TIM1: must handle case where it's already enabled
* by the firmware's IR subsystem. Bus enable asserts if already on! */
if(furi_hal_bus_is_enabled(FuriHalBusTIM1)) {
furi_hal_bus_disable(FuriHalBusTIM1);
}
furi_hal_bus_enable(FuriHalBusTIM1);
/* Configure GPIO for IR TX (built-in IR LEDs) */
furi_hal_gpio_init_ex(
&gpio_infrared_tx,
GpioModeAltFunctionPushPull,
GpioPullNo,
GpioSpeedVeryHigh,
GpioAltFn1TIM1);
/* Configure TIM1 as 1.255 MHz carrier */
LL_TIM_SetPrescaler(CARRIER_TIM, 0);
LL_TIM_SetAutoReload(CARRIER_TIM, CARRIER_ARR);
LL_TIM_SetCounter(CARRIER_TIM, 0);
/* Channel 3 config — controls both CH3 and CH3N outputs.
* The IR LED is on CH3N (PB9), so we must enable CC3NE.
* PWM2 mode with preload, matching the firmware. */
LL_TIM_OC_SetMode(CARRIER_TIM, LL_TIM_CHANNEL_CH3, LL_TIM_OCMODE_PWM2);
LL_TIM_OC_SetCompareCH3(CARRIER_TIM, CARRIER_CCR);
LL_TIM_OC_EnablePreload(CARRIER_TIM, LL_TIM_CHANNEL_CH3);
/* CRITICAL: Enable CH3N (complementary output), NOT CH3!
* IR LED is on PB9 = TIM1_CH3N. Without this, no IR output at all. */
LL_TIM_CC_EnableChannel(CARRIER_TIM, LL_TIM_CHANNEL_CH3N);
/* Main output enable (required for TIM1 advanced timer) */
LL_TIM_EnableAllOutputs(CARRIER_TIM);
/* Start timer but force carrier OFF initially */
carrier_off();
LL_TIM_EnableCounter(CARRIER_TIM);
LL_TIM_GenerateEvent_UPDATE(CARRIER_TIM);
ir_stop_requested = false;
ir_initialized = true;
FURI_LOG_I("TagTinker", "IR TX initialized: carrier %.3f MHz",
(double)(64000000.0f / (CARRIER_ARR + 1) / 1000000.0f));
}
void tagtinker_ir_deinit(void) {
if(!ir_initialized) return;
tagtinker_ir_stop();
/* Force carrier off and disable TIM1 */
carrier_off();
LL_TIM_DisableAllOutputs(CARRIER_TIM);
LL_TIM_CC_DisableChannel(CARRIER_TIM, LL_TIM_CHANNEL_CH3N);
LL_TIM_DisableCounter(CARRIER_TIM);
/* Reset TIM1 bus so firmware can reclaim it for normal IR */
if(furi_hal_bus_is_enabled(FuriHalBusTIM1)) {
furi_hal_bus_disable(FuriHalBusTIM1);
}
/* Restore GPIO to safe state */
furi_hal_gpio_init(&gpio_infrared_tx, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
ir_initialized = false;
FURI_LOG_I("TagTinker", "IR TX deinitialized");
}
bool tagtinker_ir_transmit(const uint8_t* data, size_t len, uint16_t repeats_raw, uint8_t delay) {
if(!ir_initialized) return false;
if(len == 0 || len > 255) return false;
ir_stop_requested = false;
// MSB of repeats indicates PP16 protocol!
bool is_pp16 = (repeats_raw & 0x8000) != 0;
uint32_t repeats = repeats_raw & 0x7FFF;
FURI_LOG_I("TagTinker", "TX start: %zu bytes, %lu repeats (PP%d), %u delay",
len, repeats, is_pp16 ? 16 : 4, delay);
/* Transmit frame with repeats.
* Between repeats we yield briefly so FreeRTOS stays happy
* and the user can cancel via tagtinker_ir_stop(). */
for(uint32_t rep = 0; rep <= repeats; rep++) {
if(ir_stop_requested) {
FURI_LOG_I("TagTinker", "TX cancelled at repeat %lu", rep);
carrier_off();
return false;
}
/* Send one frame (interrupts stay enabled — DWT handles timing) */
if(is_pp16) {
send_frame_pp16(data, len);
} else {
send_frame_pp4(data, len);
}
/* Delay between repeats: delay × 500µs (matching ESL Blaster).
* ESL Blaster: TickCounter = RepeatDelay * 50 ticks, each ~10µs = 500µs per unit */
if(rep < repeats) {
uint32_t delay_us = (uint32_t)delay * 500;
if(delay_us > 0) {
uint32_t delay_ms_yield = delay_us / 1000;
uint32_t delay_us_busy = delay_us % 1000;
/* Yield to FreeRTOS for the bulk of the delay to allow the GUI to animate! */
if(delay_ms_yield > 0) {
furi_delay_ms(delay_ms_yield);
}
/* Busy loop only for the sub-millisecond remainder */
if(delay_us_busy > 0) {
delay_cycles(delay_us_busy * 64); /* 64 cycles per µs */
}
}
}
/* Fallback yield to FreeRTOS every 10 repeats if the delay parameter was 0 or 1 */
if(((uint32_t)delay * 500) < 1000 && (rep % 10) == 9) {
furi_delay_ms(1);
}
}
FURI_LOG_I("TagTinker", "TX complete");
return true;
}
bool tagtinker_ir_is_busy(void) {
return false; /* Transmit is blocking in this version */
}
void tagtinker_ir_stop(void) {
ir_stop_requested = true;
carrier_off();
}
ir/tagtinker_ir.h
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/**
* TagTinker IR transmitter - header
*
* Low-level IR transmitter for the ESL protocol used by this project.
* Drives the Flipper Zero's built-in IR LEDs at 1.255 MHz carrier
* by directly programming TIM1 registers, bypassing furi_hal_infrared.
*
* Uses DWT cycle counter for symbol timing (no timer conflicts).
* PP4 mode (2-bit symbols) for this POC.
*/
#pragma once
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
/**
* Initialize the IR transmitter.
* Claims TIM1 for carrier, configures GPIO for IR output.
*/
void tagtinker_ir_init(void);
/**
* Deinitialize the IR transmitter.
* Releases TIM1, restores GPIO state.
*/
void tagtinker_ir_deinit(void);
/**
* Transmit a frame using PP4 modulation.
* Blocking call — returns when all repeats complete or cancelled.
*
* @param data frame bytes
* @param len byte count
* @param repeats times to repeat (0 = send once)
* @param delay inter-repeat delay (×500µs, 10 = 5ms like ESL Blaster)
* @return true if completed, false if cancelled/error
*/
bool tagtinker_ir_transmit(const uint8_t* data, size_t len, uint16_t repeats, uint8_t delay);
/**
* Check if transmitting.
*/
bool tagtinker_ir_is_busy(void);
/**
* Stop any ongoing transmission.
*/
void tagtinker_ir_stop(void);
protocol/tagtinker_proto.c
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/*
* TagTinker - ESL protocol helpers (implementation)
*
* Ported from furrtek/TagTinker tools_python/pr.py and img2dm.py
*
* SPDX-License-Identifier: MIT
*/
#include "tagtinker_proto.h"
#include "../tagtinker_app.h"
#include <string.h>
#include <stdlib.h>
/* ── Helpers ────────────────────────────────────────────────── */
static void append_word(uint8_t* buf, size_t* pos, uint16_t value) {
buf[(*pos)++] = (value >> 8) & 0xFF;
buf[(*pos)++] = value & 0xFF;
}
static size_t terminate(uint8_t* buf, size_t len) {
uint16_t crc = tagtinker_crc16(buf, len);
buf[len] = crc & 0xFF;
buf[len + 1] = (crc >> 8) & 0xFF;
return len + 2;
}
static size_t raw_frame(uint8_t* buf, uint8_t proto,
const uint8_t plid[4], uint8_t cmd) {
buf[0] = proto;
buf[1] = plid[3]; buf[2] = plid[2];
buf[3] = plid[1]; buf[4] = plid[0];
buf[5] = cmd;
return 6;
}
static size_t mcu_frame(uint8_t* buf, const uint8_t plid[4], uint8_t cmd) {
size_t p = raw_frame(buf, TAGTINKER_PROTO_DM, plid, 0x34);
buf[p++] = 0x00;
buf[p++] = 0x00;
buf[p++] = 0x00;
buf[p++] = cmd;
return p;
}
/* ── CRC-16 (poly 0x8408, init 0x8408) ─────────────────────── */
uint16_t tagtinker_crc16(const uint8_t* data, size_t len) {
uint16_t crc = 0x8408;
for(size_t i = 0; i < len; i++) {
crc ^= data[i];
for(int b = 0; b < 8; b++)
crc = (crc & 1) ? (crc >> 1) ^ 0x8408 : crc >> 1;
}
return crc;
}
/* ── Barcode → PLID ─────────────────────────────────────────── */
bool tagtinker_barcode_to_plid(const char* barcode, uint8_t plid[4]) {
if(!barcode || strlen(barcode) != 17) return false;
for(int i = 2; i < 12; i++)
if(barcode[i] < '0' || barcode[i] > '9') return false;
uint32_t lo = 0, hi = 0;
for(int i = 2; i < 7; i++) lo = lo * 10 + (barcode[i] - '0');
for(int i = 7; i < 12; i++) hi = hi * 10 + (barcode[i] - '0');
uint32_t id = lo + (hi << 16);
plid[0] = (id >> 8) & 0xFF;
plid[1] = id & 0xFF;
plid[2] = (id >> 24) & 0xFF;
plid[3] = (id >> 16) & 0xFF;
return true;
}
/* ── Frame builders ─────────────────────────────────────────── */
size_t tagtinker_build_broadcast_page_frame(
uint8_t* buf, uint8_t page, bool forever, uint16_t duration) {
const uint8_t plid[4] = {0};
size_t p = raw_frame(buf, TAGTINKER_PROTO_DM, plid, 0x06);
buf[p++] = ((page & 7) << 3) | 0x01 | (forever ? 0x80 : 0x00);
buf[p++] = 0x00;
buf[p++] = 0x00;
buf[p++] = forever ? 0x00 : ((duration >> 8) & 0xFF);
buf[p++] = forever ? 0x00 : (duration & 0xFF);
return terminate(buf, p);
}
size_t tagtinker_build_broadcast_debug_frame(uint8_t* buf) {
const uint8_t plid[4] = {0};
size_t p = raw_frame(buf, TAGTINKER_PROTO_DM, plid, 0x06);
buf[p++] = 0xF1;
buf[p++] = 0x00;
buf[p++] = 0x00;
buf[p++] = 0x00;
buf[p++] = 0x0A;
return terminate(buf, p);
}
size_t tagtinker_make_addressed_frame(
uint8_t* buf, const uint8_t plid[4],
const uint8_t* payload, size_t payload_len) {
size_t p = raw_frame(buf, TAGTINKER_PROTO_DM, plid, payload[0]);
memcpy(&buf[p], payload + 1, payload_len - 1);
p += payload_len - 1;
return terminate(buf, p);
}
size_t tagtinker_make_ping_frame(uint8_t* buf, const uint8_t plid[4]) {
size_t p = raw_frame(buf, TAGTINKER_PROTO_DM, plid, 0x17);
buf[p++] = 0x01;
buf[p++] = 0x00;
buf[p++] = 0x00;
buf[p++] = 0x00;
for(int i = 0; i < 22; i++) buf[p++] = 0x01;
return terminate(buf, p);
}
size_t tagtinker_make_refresh_frame(uint8_t* buf, const uint8_t plid[4]) {
size_t p = mcu_frame(buf, plid, 0x01);
for(int i = 0; i < 22; i++) buf[p++] = 0x00;
return terminate(buf, p);
}
size_t tagtinker_make_mcu_frame(
uint8_t* buf, const uint8_t plid[4], uint8_t cmd) {
return mcu_frame(buf, plid, cmd);
}
static void record_run(uint8_t* out, size_t* pos, size_t cap, uint32_t run_count) {
uint8_t bits[32];
int n = 0;
uint32_t v = run_count;
while(v) { bits[n++] = v & 1; v >>= 1; }
for(int i = 0; i < n / 2; i++) {
uint8_t t = bits[i]; bits[i] = bits[n - 1 - i]; bits[n - 1 - i] = t;
}
/* Prefix zeros (n-1 of them, skip leading 1) */
for(int i = 1; i < n; i++)
if(*pos < cap) out[(*pos)++] = 0;
/* The bits themselves */
for(int i = 0; i < n; i++)
if(*pos < cap) out[(*pos)++] = bits[i];
}
size_t tagtinker_rle_compress(
const uint8_t* pixels, size_t count,
uint8_t* out, size_t out_cap, uint8_t* comp_type) {
if(count == 0) { *comp_type = 0; return 0; }
size_t pos = 0;
if(pos < out_cap) out[pos++] = pixels[0];
uint8_t run_pixel = pixels[0];
uint32_t run_count = 1;
for(size_t i = 1; i < count; i++) {
if(pixels[i] == run_pixel) {
run_count++;
} else {
record_run(out, &pos, out_cap, run_count);
run_pixel = pixels[i];
run_count = 1;
}
}
if(run_count > 1) record_run(out, &pos, out_cap, run_count);
if(pos < count) {
*comp_type = 2; /* RLE */
return pos;
}
/* Compression didn't help — use raw */
memcpy(out, pixels, count < out_cap ? count : out_cap);
*comp_type = 0;
return count < out_cap ? count : out_cap;
}
/* ── Image upload sequence builder ──────────────────────────── */
#define DATA_BYTES_PER_FRAME 20
#define DATA_BITS_PER_FRAME (DATA_BYTES_PER_FRAME * 8)
void tagtinker_build_image_sequence(
TagTinkerApp* app,
const uint8_t plid[4],
const uint8_t* pixels,
uint16_t width, uint16_t height,
uint8_t page,
uint16_t pos_x, uint16_t pos_y,
uint16_t wake_repeats) {
size_t pixel_count = (size_t)width * height;
/* Prepare pixel data — optionally add color-clear plane */
size_t total_pixels;
uint8_t* combined = NULL;
const uint8_t* compress_src;
if(app->color_clear) {
/* Two planes: BW + color-clear (removes red artifacts) */
total_pixels = pixel_count * 2;
combined = malloc(total_pixels);
if(!combined) return;
memcpy(combined, pixels, pixel_count);
memset(combined + pixel_count, 1, pixel_count); /* 1 = Red Pigment OFF */
compress_src = combined;
} else {
/* Single BW plane — faster, less data */
total_pixels = pixel_count;
compress_src = pixels;
}
/* Compress */
size_t comp_cap = total_pixels + 256;
uint8_t* comp_bits = malloc(comp_cap);
if(!comp_bits) { if(combined) free(combined); return; }
uint8_t comp_type;
size_t comp_len = tagtinker_rle_compress(
compress_src, total_pixels, comp_bits, comp_cap, &comp_type);
const uint8_t* src_bits = (comp_type == 2) ? comp_bits : compress_src;
size_t src_len = (comp_type == 2) ? comp_len : total_pixels;
/* Pack bits into bytes */
size_t padding = (DATA_BITS_PER_FRAME - (src_len % DATA_BITS_PER_FRAME)) % DATA_BITS_PER_FRAME;
size_t padded_bits = src_len + padding;
size_t padded_bytes = padded_bits / 8;
uint8_t* data_bytes = calloc(padded_bytes, 1);
if(!data_bytes) { free(comp_bits); free(combined); return; }
for(size_t i = 0; i < src_len; i++) {
size_t byte_idx = i / 8;
size_t bit_idx = 7 - (i % 8);
if(byte_idx < padded_bytes && src_bits[i])
data_bytes[byte_idx] |= (1 << bit_idx);
}
size_t frame_count = padded_bytes / DATA_BYTES_PER_FRAME;
FURI_LOG_I("TagTinker", "IMG %ux%u pg=%u comp=%u %zu->%zu frames=%zu",
width, height, page, comp_type, total_pixels, padded_bytes, frame_count);
/* Free temp buffers */
free(comp_bits);
if(combined) free(combined);
/* Total: ping + params + N data + refresh */
size_t total = 2 + frame_count + 1;
app->frame_seq_count = total;
app->frame_sequence = malloc(sizeof(uint8_t*) * total);
app->frame_lengths = malloc(sizeof(size_t) * total);
app->frame_repeats = malloc(sizeof(uint16_t) * total);
if(!app->frame_sequence || !app->frame_lengths || !app->frame_repeats) {
free(data_bytes);
app->frame_seq_count = 0;
return;
}
size_t idx = 0;
/* 1. Ping */
app->frame_sequence[idx] = malloc(TAGTINKER_MAX_FRAME_SIZE);
app->frame_lengths[idx] = tagtinker_make_ping_frame(app->frame_sequence[idx], plid);
app->frame_repeats[idx] = wake_repeats;
idx++;
/* 2. Parameters (cmd 0x05) */
app->frame_sequence[idx] = malloc(TAGTINKER_MAX_FRAME_SIZE);
size_t p = mcu_frame(app->frame_sequence[idx], plid, 0x05);
append_word(app->frame_sequence[idx], &p, (uint16_t)padded_bytes);
app->frame_sequence[idx][p++] = 0x00;
app->frame_sequence[idx][p++] = comp_type;
app->frame_sequence[idx][p++] = page;
append_word(app->frame_sequence[idx], &p, width);
append_word(app->frame_sequence[idx], &p, height);
append_word(app->frame_sequence[idx], &p, pos_x);
append_word(app->frame_sequence[idx], &p, pos_y);
append_word(app->frame_sequence[idx], &p, 0x0000);
app->frame_sequence[idx][p++] = 0x88;
append_word(app->frame_sequence[idx], &p, 0x0000);
for(int i = 0; i < 4; i++) app->frame_sequence[idx][p++] = 0x00;
app->frame_lengths[idx] = terminate(app->frame_sequence[idx], p);
app->frame_repeats[idx] = 1;
idx++;
/* 3..N+2. Data frames (cmd 0x20) */
for(size_t fi = 0; fi < frame_count; fi++) {
app->frame_sequence[idx] = malloc(TAGTINKER_MAX_FRAME_SIZE);
p = mcu_frame(app->frame_sequence[idx], plid, 0x20);
append_word(app->frame_sequence[idx], &p, (uint16_t)fi);
size_t start = fi * DATA_BYTES_PER_FRAME;
memcpy(&app->frame_sequence[idx][p], &data_bytes[start], DATA_BYTES_PER_FRAME);
p += DATA_BYTES_PER_FRAME;
app->frame_lengths[idx] = terminate(app->frame_sequence[idx], p);
app->frame_repeats[idx] = 3; /* 3 repeats per data frame for reliability */
idx++;
}
/* N+3. Refresh */
app->frame_sequence[idx] = malloc(TAGTINKER_MAX_FRAME_SIZE);
app->frame_lengths[idx] = tagtinker_make_refresh_frame(app->frame_sequence[idx], plid);
app->frame_repeats[idx] = 1;
/* Copy first data frame for display in TX scene */
if(app->frame_seq_count > 1) {
memcpy(app->frame_buf, app->frame_sequence[1],
app->frame_lengths[1] < TAGTINKER_MAX_FRAME_SIZE
? app->frame_lengths[1] : TAGTINKER_MAX_FRAME_SIZE);
app->frame_len = app->frame_lengths[1];
}
free(data_bytes);
}
protocol/tagtinker_proto.h
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/*
* TagTinker - ESL protocol helpers
*
* Frame construction, CRC, and encoding for the infrared
* ESL protocol used by this project. Ported from furrtek/TagTinker.
*
* SPDX-License-Identifier: MIT
*/
#pragma once
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#define TAGTINKER_PROTO_DM 0x85 /* Dot-matrix / graphic ESLs */
#define TAGTINKER_PROTO_SEG 0x84 /* 7-segment ESLs */
#define TAGTINKER_MAX_FRAME_SIZE 96
/* Forward declaration for TagTinkerApp (avoids circular include) */
typedef struct TagTinkerApp TagTinkerApp;
/* ── CRC ────────────────────────────────────────────────────── */
uint16_t tagtinker_crc16(const uint8_t* data, size_t len);
/* ── Barcode / PLID ─────────────────────────────────────────── */
bool tagtinker_barcode_to_plid(const char* barcode, uint8_t plid[4]);
/* ── Frame builders ─────────────────────────────────────────── */
/* Broadcast page-change (no barcode needed). */
size_t tagtinker_build_broadcast_page_frame(
uint8_t* buf, uint8_t page, bool forever, uint16_t duration);
/* Broadcast diagnostic page. */
size_t tagtinker_build_broadcast_debug_frame(uint8_t* buf);
/* Addressed DM frame: wraps raw payload with protocol + PLID + CRC. */
size_t tagtinker_make_addressed_frame(
uint8_t* buf, const uint8_t plid[4],
const uint8_t* payload, size_t payload_len);
/* Wake-up ping (must be sent before most addressed commands). */
size_t tagtinker_make_ping_frame(uint8_t* buf, const uint8_t plid[4]);
/* Display refresh request. */
size_t tagtinker_make_refresh_frame(uint8_t* buf, const uint8_t plid[4]);
/* MCU-level frame (used for image upload protocol). */
size_t tagtinker_make_mcu_frame(
uint8_t* buf, const uint8_t plid[4], uint8_t cmd);
/* ── Image upload helpers ───────────────────────────────────── */
/* RLE-compress a pixel array (0/1 values).
* Returns compressed bitstream length. comp_type is set to 0 (raw) or 2 (RLE). */
size_t tagtinker_rle_compress(
const uint8_t* pixels, size_t count,
uint8_t* out, size_t out_cap, uint8_t* comp_type);
/* Build a complete image-upload frame sequence and store it in app state.
* Allocates memory that the transmit scene frees on exit. */
void tagtinker_build_image_sequence(
TagTinkerApp* app,
const uint8_t plid[4],
const uint8_t* pixels,
uint16_t width, uint16_t height,
uint8_t page,
uint16_t pos_x, uint16_t pos_y,
uint16_t wake_repeats);
scenes/tagtinker_scene.c
+57
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/*
* Scene handler table
*/
#include "tagtinker_scene.h"
void(*const tagtinker_scene_on_enter_handlers[])(void*) = {
tagtinker_scene_main_menu_on_enter,
tagtinker_scene_broadcast_menu_on_enter,
tagtinker_scene_broadcast_on_enter,
tagtinker_scene_target_menu_on_enter,
tagtinker_scene_target_actions_on_enter,
tagtinker_scene_barcode_input_on_enter,
tagtinker_scene_text_input_on_enter,
tagtinker_scene_preset_list_on_enter,
tagtinker_scene_size_picker_on_enter,
tagtinker_scene_image_upload_on_enter,
tagtinker_scene_transmit_on_enter,
tagtinker_scene_about_on_enter,
};
bool(*const tagtinker_scene_on_event_handlers[])(void*, SceneManagerEvent) = {
tagtinker_scene_main_menu_on_event,
tagtinker_scene_broadcast_menu_on_event,
tagtinker_scene_broadcast_on_event,
tagtinker_scene_target_menu_on_event,
tagtinker_scene_target_actions_on_event,
tagtinker_scene_barcode_input_on_event,
tagtinker_scene_text_input_on_event,
tagtinker_scene_preset_list_on_event,
tagtinker_scene_size_picker_on_event,
tagtinker_scene_image_upload_on_event,
tagtinker_scene_transmit_on_event,
tagtinker_scene_about_on_event,
};
void(*const tagtinker_scene_on_exit_handlers[])(void*) = {
tagtinker_scene_main_menu_on_exit,
tagtinker_scene_broadcast_menu_on_exit,
tagtinker_scene_broadcast_on_exit,
tagtinker_scene_target_menu_on_exit,
tagtinker_scene_target_actions_on_exit,
tagtinker_scene_barcode_input_on_exit,
tagtinker_scene_text_input_on_exit,
tagtinker_scene_preset_list_on_exit,
tagtinker_scene_size_picker_on_exit,
tagtinker_scene_image_upload_on_exit,
tagtinker_scene_transmit_on_exit,
tagtinker_scene_about_on_exit,
};
const SceneManagerHandlers tagtinker_scene_handlers = {
.on_enter_handlers = tagtinker_scene_on_enter_handlers,
.on_event_handlers = tagtinker_scene_on_event_handlers,
.on_exit_handlers = tagtinker_scene_on_exit_handlers,
.scene_num = TagTinkerSceneCount,
};
scenes/tagtinker_scene.h
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/*
* TagTinker — Scene Definitions
*/
#pragma once
#include <gui/scene_manager.h>
typedef enum {
TagTinkerSceneMainMenu,
TagTinkerSceneBroadcastMenu,
TagTinkerSceneBroadcast,
TagTinkerSceneTargetMenu,
TagTinkerSceneTargetActions,
TagTinkerSceneBarcodeInput,
TagTinkerSceneTextInput,
TagTinkerScenePresetList,
TagTinkerSceneSizePicker,
TagTinkerSceneImageUpload,
TagTinkerSceneTransmit,
TagTinkerSceneAbout,
TagTinkerSceneCount,
} TagTinkerScene;
/* Scene handler declarations */
void tagtinker_scene_main_menu_on_enter(void* ctx);
bool tagtinker_scene_main_menu_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_main_menu_on_exit(void* ctx);
void tagtinker_scene_broadcast_menu_on_enter(void* ctx);
bool tagtinker_scene_broadcast_menu_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_broadcast_menu_on_exit(void* ctx);
void tagtinker_scene_broadcast_on_enter(void* ctx);
bool tagtinker_scene_broadcast_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_broadcast_on_exit(void* ctx);
void tagtinker_scene_target_menu_on_enter(void* ctx);
bool tagtinker_scene_target_menu_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_target_menu_on_exit(void* ctx);
void tagtinker_scene_target_actions_on_enter(void* ctx);
bool tagtinker_scene_target_actions_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_target_actions_on_exit(void* ctx);
void tagtinker_scene_barcode_input_on_enter(void* ctx);
bool tagtinker_scene_barcode_input_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_barcode_input_on_exit(void* ctx);
void tagtinker_scene_text_input_on_enter(void* ctx);
bool tagtinker_scene_text_input_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_text_input_on_exit(void* ctx);
void tagtinker_scene_size_picker_on_enter(void* ctx);
bool tagtinker_scene_size_picker_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_size_picker_on_exit(void* ctx);
void tagtinker_scene_preset_list_on_enter(void* ctx);
bool tagtinker_scene_preset_list_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_preset_list_on_exit(void* ctx);
void tagtinker_scene_image_upload_on_enter(void* ctx);
bool tagtinker_scene_image_upload_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_image_upload_on_exit(void* ctx);
void tagtinker_scene_transmit_on_enter(void* ctx);
bool tagtinker_scene_transmit_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_transmit_on_exit(void* ctx);
void tagtinker_scene_about_on_enter(void* ctx);
bool tagtinker_scene_about_on_event(void* ctx, SceneManagerEvent event);
void tagtinker_scene_about_on_exit(void* ctx);
scenes/tagtinker_scene_about.c
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/*
* About — credits (state=0) or Android teaser (state=1)
*/
#include "../tagtinker_app.h"
typedef struct {
uint32_t mode;
uint32_t tick;
} AboutViewModel;
static void about_draw_cb(Canvas* canvas, void* _model) {
AboutViewModel* model = _model;
canvas_set_font(canvas, FontPrimary);
if(model->mode == 1) {
canvas_set_font(canvas, FontPrimary);
canvas_draw_str_aligned(canvas, 64, 32, AlignCenter, AlignCenter, "In Progress");
} else {
canvas_draw_str_aligned(
canvas, 64, 10, AlignCenter, AlignTop, TAGTINKER_DISPLAY_NAME " v" TAGTINKER_VERSION);
canvas_set_font(canvas, FontSecondary);
canvas_draw_str_aligned(canvas, 64, 24, AlignCenter, AlignTop, "Ported by I12BP8");
canvas_draw_str_aligned(canvas, 64, 34, AlignCenter, AlignTop, "Research by furrtek");
canvas_draw_str_aligned(canvas, 64, 44, AlignCenter, AlignTop, "Owned ESLs only");
canvas_draw_str_aligned(canvas, 64, 54, AlignCenter, AlignTop, "No store use");
}
}
void tagtinker_scene_about_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
uint32_t mode = scene_manager_get_scene_state(app->scene_manager, TagTinkerSceneAbout);
if(!app->about_view_allocated) {
view_allocate_model(app->about_view, ViewModelTypeLockFree, sizeof(AboutViewModel));
view_set_context(app->about_view, app);
view_set_draw_callback(app->about_view, about_draw_cb);
app->about_view_allocated = true;
}
AboutViewModel* model = view_get_model(app->about_view);
model->mode = mode;
model->tick = 0;
view_commit_model(app->about_view, true);
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewAbout);
}
bool tagtinker_scene_about_on_event(void* ctx, SceneManagerEvent event) {
TagTinkerApp* app = ctx;
if(event.type == SceneManagerEventTypeTick) {
AboutViewModel* model = view_get_model(app->about_view);
model->tick++;
view_commit_model(app->about_view, true);
return true;
}
return false;
}
void tagtinker_scene_about_on_exit(void* ctx) {
UNUSED(ctx);
}
scenes/tagtinker_scene_barcode_input.c
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/*
* Barcode Input — custom numlock digit selector
* Auto-prefixes 'N', user enters 16 digits with arrow keys.
*/
#include "../tagtinker_app.h"
static void numlock_done(void* ctx, const char* barcode) {
TagTinkerApp* app = ctx;
/* Copy result to app barcode buffer */
strncpy(app->barcode, barcode, TAGTINKER_BC_LEN);
app->barcode[TAGTINKER_BC_LEN] = '\0';
view_dispatcher_send_custom_event(app->view_dispatcher, 0);
}
void tagtinker_scene_barcode_input_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
numlock_input_reset(app->numlock);
numlock_input_set_callback(app->numlock, numlock_done, app);
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewNumlock);
}
bool tagtinker_scene_barcode_input_on_event(void* ctx, SceneManagerEvent event) {
TagTinkerApp* app = ctx;
if(event.type != SceneManagerEventTypeCustom) return false;
app->barcode_valid = tagtinker_barcode_to_plid(app->barcode, app->plid);
if(!app->barcode_valid) {
FURI_LOG_W(TAGTINKER_TAG, "Invalid barcode: %s", app->barcode);
popup_reset(app->popup);
popup_set_header(app->popup, "Invalid Barcode", 64, 20, AlignCenter, AlignCenter);
popup_set_text(app->popup,
"Format: N + 4 + 14 digits",
64, 40, AlignCenter, AlignCenter);
popup_set_timeout(app->popup, 2000);
popup_enable_timeout(app->popup);
popup_set_callback(app->popup, NULL);
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewPopup);
return true;
}
FURI_LOG_I(TAGTINKER_TAG, "Barcode: %s -> PLID %02X%02X%02X%02X",
app->barcode, app->plid[3], app->plid[2], app->plid[1], app->plid[0]);
/* Auto-save target */
bool exists = false;
for(uint8_t i = 0; i < app->target_count; i++) {
if(strcmp(app->targets[i].barcode, app->barcode) == 0) {
exists = true;
app->selected_target = i;
break;
}
}
if(!exists && app->target_count < TAGTINKER_MAX_TARGETS) {
TagTinkerTarget* t = &app->targets[app->target_count];
memcpy(t->barcode, app->barcode, TAGTINKER_BC_LEN + 1);
memcpy(t->plid, app->plid, 4);
char suffix[7];
memcpy(suffix, app->barcode + TAGTINKER_BC_LEN - 6, 6);
suffix[6] = '\0';
snprintf(t->name, TAGTINKER_TARGET_NAME_LEN, "Tag ...%s", suffix);
app->selected_target = app->target_count;
app->target_count++;
}
uint32_t target_scene = scene_manager_get_scene_state(
app->scene_manager, TagTinkerSceneBarcodeInput);
scene_manager_next_scene(app->scene_manager, target_scene);
return true;
}
void tagtinker_scene_barcode_input_on_exit(void* ctx) {
TagTinkerApp* app = ctx;
numlock_input_reset(app->numlock);
}
scenes/tagtinker_scene_broadcast.c
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/**
* Broadcast page scene
*
* Sends either a page-select command or the diagnostic page command
* to all DM ESLs in range.
* No barcode needed - uses PLID 0 (broadcast).
* Settings: page (0-7), duration (2-120s), forever toggle.
*/
#include "../tagtinker_app.h"
enum {
BroadcastItemPage,
BroadcastItemDuration,
BroadcastItemForever,
BroadcastItemRepeats,
BroadcastItemSpam,
};
static const char* page_labels[] = {"0", "1", "2", "3", "4", "5", "6", "7"};
static const char* forever_labels[] = {"Off", "On"};
static const char* repeat_labels[] = {"50", "100", "200", "400", "800"};
static const uint16_t repeat_values[] = {50, 100, 200, 400, 800};
#define REPEAT_COUNT 5
static void page_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
uint8_t idx = variable_item_get_current_value_index(item);
variable_item_set_current_value_text(item, page_labels[idx]);
app->page = idx;
}
static void duration_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
uint8_t idx = variable_item_get_current_value_index(item);
uint16_t durations[] = {2, 5, 10, 15, 30, 60, 120};
const char* dur_labels[] = {"2s", "5s", "10s", "15s", "30s", "60s", "120s"};
variable_item_set_current_value_text(item, dur_labels[idx]);
app->duration = durations[idx];
}
static void forever_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
uint8_t idx = variable_item_get_current_value_index(item);
variable_item_set_current_value_text(item, forever_labels[idx]);
app->forever = (idx == 1);
}
static void spam_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
uint8_t idx = variable_item_get_current_value_index(item);
variable_item_set_current_value_text(item, forever_labels[idx]);
app->tx_spam = (idx == 1);
}
static void repeats_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
uint8_t idx = variable_item_get_current_value_index(item);
variable_item_set_current_value_text(item, repeat_labels[idx]);
app->repeats = repeat_values[idx];
}
static void broadcast_enter_callback(void* context, uint32_t index) {
UNUSED(index);
TagTinkerApp* app = context;
view_dispatcher_send_custom_event(app->view_dispatcher, 0);
}
void tagtinker_scene_broadcast_on_enter(void* context) {
TagTinkerApp* app = context;
VariableItemList* vil = app->var_item_list;
variable_item_list_reset(vil);
VariableItem* item;
/* Build list conditionally */
if(app->broadcast_type == TagTinkerBroadcastFlipPage) {
/* Page selector 0-7 */
item = variable_item_list_add(vil, "Page", 8, page_changed, app);
variable_item_set_current_value_index(item, app->page);
variable_item_set_current_value_text(item, page_labels[app->page]);
/* Duration */
item = variable_item_list_add(vil, "Duration", 7, duration_changed, app);
/* Find closest index */
uint16_t durations[] = {2, 5, 10, 15, 30, 60, 120};
uint8_t dur_idx = 3; /* default 15s */
for(uint8_t i = 0; i < 7; i++) {
if(durations[i] == app->duration) { dur_idx = i; break; }
}
const char* dur_labels[] = {"2s", "5s", "10s", "15s", "30s", "60s", "120s"};
variable_item_set_current_value_index(item, dur_idx);
variable_item_set_current_value_text(item, dur_labels[dur_idx]);
/* Forever toggle */
item = variable_item_list_add(vil, "Forever", 2, forever_changed, app);
variable_item_set_current_value_index(item, app->forever ? 1 : 0);
variable_item_set_current_value_text(item, forever_labels[app->forever ? 1 : 0]);
}
/* Repeats (for both) */
item = variable_item_list_add(vil, "Repeats", REPEAT_COUNT, repeats_changed, app);
uint8_t rep_idx = 2; /* default 200 */
for(uint8_t i = 0; i < REPEAT_COUNT; i++) {
if(repeat_values[i] == app->repeats) { rep_idx = i; break; }
}
variable_item_set_current_value_index(item, rep_idx);
variable_item_set_current_value_text(item, repeat_labels[rep_idx]);
/* Continuous repeat toggle */
item = variable_item_list_add(vil, "Repeat", 2, spam_changed, app);
variable_item_set_current_value_index(item, app->tx_spam ? 1 : 0);
variable_item_set_current_value_text(item, forever_labels[app->tx_spam ? 1 : 0]);
/* OK press on any item → trigger transmit */
variable_item_list_set_enter_callback(vil, broadcast_enter_callback, app);
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewVarItemList);
}
bool tagtinker_scene_broadcast_on_event(void* context, SceneManagerEvent event) {
TagTinkerApp* app = context;
bool consumed = false;
if(event.type == SceneManagerEventTypeCustom) {
if(app->broadcast_type == TagTinkerBroadcastFlipPage) {
/* Build page broadcast frame and transmit */
app->frame_len = tagtinker_build_broadcast_page_frame(
app->frame_buf, app->page, app->forever, app->duration);
} else {
/* Build debug broadcast frame */
app->frame_len = tagtinker_build_broadcast_debug_frame(app->frame_buf);
}
/* Set up single-frame TX */
app->frame_seq_count = 0; /* Use single frame mode */
scene_manager_next_scene(app->scene_manager, TagTinkerSceneTransmit);
consumed = true;
}
return consumed;
}
void tagtinker_scene_broadcast_on_exit(void* context) {
TagTinkerApp* app = context;
variable_item_list_reset(app->var_item_list);
}
scenes/tagtinker_scene_broadcast_menu.c
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/*
* Broadcast menu - page select / diagnostic page
*/
#include "../tagtinker_app.h"
static void broadcast_menu_cb(void* ctx, uint32_t index) {
TagTinkerApp* app = ctx;
view_dispatcher_send_custom_event(app->view_dispatcher, index);
}
void tagtinker_scene_broadcast_menu_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
submenu_reset(app->submenu);
submenu_set_header(app->submenu, "Broadcast Tag");
submenu_add_item(app->submenu, "Change Page", TagTinkerBroadcastFlipPage, broadcast_menu_cb, app);
submenu_add_item(app->submenu, "Show Debug Page", TagTinkerBroadcastDebugScreen, broadcast_menu_cb, app);
submenu_set_selected_item(
app->submenu,
scene_manager_get_scene_state(app->scene_manager, TagTinkerSceneBroadcastMenu));
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewSubmenu);
}
bool tagtinker_scene_broadcast_menu_on_event(void* ctx, SceneManagerEvent event) {
TagTinkerApp* app = ctx;
if(event.type != SceneManagerEventTypeCustom) return false;
scene_manager_set_scene_state(app->scene_manager, TagTinkerSceneBroadcastMenu, event.event);
switch(event.event) {
case TagTinkerBroadcastFlipPage:
app->broadcast_type = TagTinkerBroadcastFlipPage;
scene_manager_next_scene(app->scene_manager, TagTinkerSceneBroadcast);
return true;
case TagTinkerBroadcastDebugScreen:
app->broadcast_type = TagTinkerBroadcastDebugScreen;
scene_manager_next_scene(app->scene_manager, TagTinkerSceneBroadcast);
return true;
}
return false;
}
void tagtinker_scene_broadcast_menu_on_exit(void* ctx) {
TagTinkerApp* app = ctx;
submenu_reset(app->submenu);
}
scenes/tagtinker_scene_image_upload.c
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#include "../tagtinker_app.h"
#include <dialogs/dialogs.h>
#include <storage/storage.h>
#include <gui/canvas.h>
static void show_error_dialog(TagTinkerApp* app, const char* text) {
DialogMessage* message = dialog_message_alloc();
dialog_message_set_header(message, "Load Error", 64, 0, AlignCenter, AlignTop);
dialog_message_set_text(message, text, 64, 26, AlignCenter, AlignCenter);
dialog_message_set_buttons(message, "OK", NULL, NULL);
dialog_message_show(app->dialogs, message);
dialog_message_free(message);
}
void tagtinker_scene_image_upload_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
TagTinkerTarget* target = &app->targets[app->selected_target];
FuriString* file_path = furi_string_alloc();
furi_string_set(file_path, "/ext/apps_data/tagtinker");
Storage* storage = furi_record_open(RECORD_STORAGE);
storage_simply_mkdir(storage, furi_string_get_cstr(file_path));
DialogsFileBrowserOptions browser_options;
memset(&browser_options, 0, sizeof(browser_options));
dialog_file_browser_set_basic_options(&browser_options, ".bmp", NULL);
browser_options.hide_dot_files = true;
if(dialog_file_browser_show(app->dialogs, file_path, file_path, &browser_options)) {
File* file = storage_file_alloc(storage);
if(storage_file_open(file, furi_string_get_cstr(file_path), FSAM_READ, FSOM_OPEN_EXISTING)) {
uint8_t header[54];
if(storage_file_read(file, header, sizeof(header)) == sizeof(header)) {
if(header[0] == 'B' && header[1] == 'M') {
uint32_t data_offset = header[10] | (header[11] << 8) | (header[12] << 16) | (header[13] << 24);
int32_t bmp_w = header[18] | (header[19] << 8) | (header[20] << 16) | (header[21] << 24);
int32_t bmp_h = header[22] | (header[23] << 8) | (header[24] << 16) | (header[25] << 24);
uint16_t bpp = header[28] | (header[29] << 8);
bool top_down = false;
if(bmp_h < 0) {
top_down = true;
bmp_h = -bmp_h;
}
if(bpp == 1) {
size_t w = (size_t)bmp_w;
size_t h = (size_t)bmp_h;
uint8_t* img_data = malloc(w * h);
memset(img_data, 0, w * h);
uint32_t row_stride = ((bmp_w + 31) / 32) * 4;
uint8_t* row_buf = malloc(row_stride);
storage_file_seek(file, data_offset, true);
for(int32_t y = 0; y < bmp_h; y++) {
/* target_y is the logical row index 0..h-1 */
int32_t target_y = top_down ? y : (bmp_h - 1 - y);
storage_file_read(file, row_buf, row_stride);
if(target_y >= 0 && target_y < (int32_t)h) {
for(int32_t x = 0; x < bmp_w && x < (int32_t)w; x++) {
uint8_t byte = row_buf[x / 8];
uint8_t bit = (byte >> (7 - (x % 8))) & 1;
img_data[target_y * w + x] = (bit == 0) ? 0 : 1;
}
}
}
free(row_buf);
/* Force color-clear and use BMP's own dimensions */
bool prev_clr = app->color_clear;
app->color_clear = true;
tagtinker_build_image_sequence(app, target->plid, img_data, (uint16_t)w, (uint16_t)h, 0, 0, 0, 250);
app->color_clear = prev_clr;
memcpy(app->frame_buf, app->frame_sequence[0], app->frame_lengths[0]);
app->frame_len = app->frame_lengths[0];
free(img_data);
app->tx_spam = false;
scene_manager_next_scene(app->scene_manager, TagTinkerSceneTransmit);
} else {
show_error_dialog(app, "Must be 1-bit BMP");
}
} else {
show_error_dialog(app, "Invalid BMP magic");
}
} else {
show_error_dialog(app, "File too small");
}
storage_file_close(file);
} else {
show_error_dialog(app, "Could not open file");
}
storage_file_free(file);
} else {
/* User cancelled browser */
scene_manager_previous_scene(app->scene_manager);
}
furi_record_close(RECORD_STORAGE);
furi_string_free(file_path);
}
bool tagtinker_scene_image_upload_on_event(void* ctx, SceneManagerEvent event) {
UNUSED(ctx);
UNUSED(event);
return false;
}
void tagtinker_scene_image_upload_on_exit(void* ctx) {
UNUSED(ctx);
}
scenes/tagtinker_scene_main_menu.c
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/*
* Main Menu
*/
#include "../tagtinker_app.h"
enum {
MainMenuBroadcast,
MainMenuTargetESL,
MainMenuAndroid,
MainMenuAbout,
};
static void main_menu_cb(void* ctx, uint32_t index) {
TagTinkerApp* app = ctx;
view_dispatcher_send_custom_event(app->view_dispatcher, index);
}
void tagtinker_scene_main_menu_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
submenu_reset(app->submenu);
submenu_set_header(app->submenu, TAGTINKER_DISPLAY_NAME " v" TAGTINKER_VERSION);
submenu_add_item(app->submenu, "Broadcast Tag", MainMenuBroadcast, main_menu_cb, app);
submenu_add_item(app->submenu, "Target Tag", MainMenuTargetESL, main_menu_cb, app);
submenu_add_item(app->submenu, "Android App", MainMenuAndroid, main_menu_cb, app);
submenu_add_item(app->submenu, "About", MainMenuAbout, main_menu_cb, app);
submenu_set_selected_item(
app->submenu,
scene_manager_get_scene_state(app->scene_manager, TagTinkerSceneMainMenu));
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewSubmenu);
}
bool tagtinker_scene_main_menu_on_event(void* ctx, SceneManagerEvent event) {
TagTinkerApp* app = ctx;
if(event.type != SceneManagerEventTypeCustom) return false;
scene_manager_set_scene_state(app->scene_manager, TagTinkerSceneMainMenu, event.event);
switch(event.event) {
case MainMenuBroadcast:
scene_manager_next_scene(app->scene_manager, TagTinkerSceneBroadcastMenu);
return true;
case MainMenuTargetESL:
scene_manager_next_scene(app->scene_manager, TagTinkerSceneTargetMenu);
return true;
case MainMenuAndroid:
/* state=1 tells About scene to show Android teaser */
scene_manager_set_scene_state(app->scene_manager, TagTinkerSceneAbout, 1);
scene_manager_next_scene(app->scene_manager, TagTinkerSceneAbout);
return true;
case MainMenuAbout:
scene_manager_set_scene_state(app->scene_manager, TagTinkerSceneAbout, 0);
scene_manager_next_scene(app->scene_manager, TagTinkerSceneAbout);
return true;
}
return false;
}
void tagtinker_scene_main_menu_on_exit(void* ctx) {
TagTinkerApp* app = ctx;
submenu_reset(app->submenu);
}
scenes/tagtinker_scene_preset_list.c
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/*
* Preset List — first screen after "Push Text".
*
* Shows saved presets (click = instant transmit with saved text + settings).
* "[+] Add New Preset" goes to text input → size picker → save.
*/
#include "../tagtinker_app.h"
#include "../views/tagtinker_font.h"
#include "../protocol/tagtinker_proto.h"
#define EVT_ADD_NEW 200
#define EVT_PRESET 0
/* Load presets from SD card */
static void presets_load(TagTinkerApp* app) {
app->preset_count = 0;
Storage* storage = furi_record_open(RECORD_STORAGE);
File* file = storage_file_alloc(storage);
if(storage_file_open(file, APP_DATA_PATH("presets.txt"),
FSAM_READ, FSOM_OPEN_EXISTING)) {
char buf[512];
uint16_t read = storage_file_read(file, buf, sizeof(buf) - 1);
buf[read] = '\0';
storage_file_close(file);
char* line = buf;
while(line && *line && app->preset_count < TAGTINKER_MAX_PRESETS) {
char* nl = strchr(line, '\n');
if(nl) *nl = '\0';
unsigned w, h, pg, inv, clr;
if(sscanf(line, "%u|%u|%u|%u|%u|", &w, &h, &pg, &inv, &clr) == 5) {
char* p = line;
int pipes = 0;
while(*p && pipes < 5) { if(*p == '|') pipes++; p++; }
uint8_t idx = app->preset_count++;
app->presets[idx].width = (uint16_t)w;
app->presets[idx].height = (uint16_t)h;
app->presets[idx].page = (uint8_t)pg;
app->presets[idx].invert = (inv != 0);
app->presets[idx].color_clear = (clr != 0);
memset(app->presets[idx].text, 0, TAGTINKER_PRESET_TEXT_LEN);
if(pipes == 5) {
strncpy(app->presets[idx].text, p, TAGTINKER_PRESET_TEXT_LEN - 1);
}
}
line = nl ? nl + 1 : NULL;
}
}
storage_file_free(file);
furi_record_close(RECORD_STORAGE);
}
static void preset_list_cb(void* ctx, uint32_t index) {
TagTinkerApp* app = ctx;
view_dispatcher_send_custom_event(app->view_dispatcher, index);
}
/* Static label storage */
static char preset_labels[TAGTINKER_MAX_PRESETS][48];
void tagtinker_scene_preset_list_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
presets_load(app);
submenu_reset(app->submenu);
submenu_set_header(app->submenu, "Text Presets");
/* Add New Preset option first */
submenu_add_item(app->submenu, "[+] New Preset",
EVT_ADD_NEW, preset_list_cb, app);
/* Saved presets */
for(uint8_t i = 0; i < app->preset_count; i++) {
snprintf(preset_labels[i], sizeof(preset_labels[i]),
"%ux%u \"%s\"",
app->presets[i].width,
app->presets[i].height,
app->presets[i].text);
submenu_add_item(app->submenu, preset_labels[i],
EVT_PRESET + i, preset_list_cb, app);
}
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewSubmenu);
}
bool tagtinker_scene_preset_list_on_event(void* ctx, SceneManagerEvent event) {
TagTinkerApp* app = ctx;
if(event.type != SceneManagerEventTypeCustom) return false;
if(event.event == EVT_ADD_NEW) {
/* Clear text buffer and go to text input */
memset(app->text_input_buf, 0, sizeof(app->text_input_buf));
scene_manager_set_scene_state(app->scene_manager, TagTinkerSceneTextInput, 0);
scene_manager_next_scene(app->scene_manager, TagTinkerSceneTextInput);
return true;
}
/* Preset selected — load text + settings and transmit */
uint32_t idx = event.event - EVT_PRESET;
if(idx < app->preset_count) {
/* Load preset into app state */
app->esl_width = app->presets[idx].width;
app->esl_height = app->presets[idx].height;
app->img_page = app->presets[idx].page;
app->invert_text = app->presets[idx].invert;
app->color_clear = app->presets[idx].color_clear;
strncpy(app->text_input_buf, app->presets[idx].text,
sizeof(app->text_input_buf) - 1);
FURI_LOG_I(TAGTINKER_TAG, "Preset %lu: %ux%u \"%s\"",
idx, app->esl_width, app->esl_height, app->text_input_buf);
/* Render + transmit */
size_t num_pixels = (size_t)app->esl_width * app->esl_height;
uint8_t* pixels = malloc(num_pixels);
if(!pixels) return false;
if(app->invert_text) {
render_text_ex(pixels, app->esl_width, app->esl_height,
app->text_input_buf, 0, 1);
} else {
render_text(pixels, app->esl_width, app->esl_height,
app->text_input_buf);
}
TagTinkerTarget* target = &app->targets[app->selected_target];
tagtinker_build_image_sequence(
app, target->plid, pixels,
app->esl_width, app->esl_height, app->img_page,
0, 0, 250);
free(pixels);
app->tx_spam = false;
scene_manager_next_scene(app->scene_manager, TagTinkerSceneTransmit);
return true;
}
return false;
}
void tagtinker_scene_preset_list_on_exit(void* ctx) {
TagTinkerApp* app = ctx;
submenu_reset(app->submenu);
}
scenes/tagtinker_scene_size_picker.c
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/*
* Size Picker — custom W/H (5px steps), mode, page, color, transmit
*/
#include "../tagtinker_app.h"
#include "../views/tagtinker_font.h"
#include "../protocol/tagtinker_proto.h"
#include <storage/storage.h>
/* Limits */
#define MIN_W 48
#define MAX_W 200
#define STEP_W 8
#define MIN_H 50
#define MAX_H 90
#define STEP_H 5
#define W_COUNT ((MAX_W - MIN_W) / STEP_W + 1)
#define H_COUNT ((MAX_H - MIN_H) / STEP_H + 1)
/* Setting indices */
enum {
SettingWidth,
SettingHeight,
SettingPage,
SettingColor,
SettingMode,
SettingSave,
SettingTransmit,
};
/* ── Callbacks ── */
static void width_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
uint8_t idx = variable_item_get_current_value_index(item);
app->esl_width = MIN_W + idx * STEP_W;
char buf[8];
snprintf(buf, sizeof(buf), "%u", app->esl_width);
variable_item_set_current_value_text(item, buf);
}
static void height_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
uint8_t idx = variable_item_get_current_value_index(item);
app->esl_height = MIN_H + idx * STEP_H;
char buf[8];
snprintf(buf, sizeof(buf), "%u", app->esl_height);
variable_item_set_current_value_text(item, buf);
}
static void page_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
app->img_page = variable_item_get_current_value_index(item);
char buf[4];
snprintf(buf, sizeof(buf), "%u", app->img_page);
variable_item_set_current_value_text(item, buf);
}
static void color_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
app->invert_text = (variable_item_get_current_value_index(item) == 1);
variable_item_set_current_value_text(
item, app->invert_text ? "W on B" : "B on W");
}
static void mode_changed(VariableItem* item) {
TagTinkerApp* app = variable_item_get_context(item);
app->color_clear = (variable_item_get_current_value_index(item) == 1);
variable_item_set_current_value_text(
item, app->color_clear ? "BW+Clr" : "BW Fast");
}
static void save_presets_to_sd(TagTinkerApp* app) {
Storage* storage = furi_record_open(RECORD_STORAGE);
storage_common_mkdir(storage, APP_DATA_PATH(""));
File* file = storage_file_alloc(storage);
if(storage_file_open(file, APP_DATA_PATH("presets.txt"),
FSAM_WRITE, FSOM_CREATE_ALWAYS)) {
for(uint8_t i = 0; i < app->preset_count; i++) {
char line[80];
int len = snprintf(line, sizeof(line), "%u|%u|%u|%d|%d|%s\n",
app->presets[i].width, app->presets[i].height,
app->presets[i].page,
app->presets[i].invert ? 1 : 0,
app->presets[i].color_clear ? 1 : 0,
app->presets[i].text);
storage_file_write(file, line, (uint16_t)len);
}
storage_file_close(file);
}
storage_file_free(file);
furi_record_close(RECORD_STORAGE);
}
static void setting_cb(void* ctx, uint32_t index) {
TagTinkerApp* app = ctx;
if(index == SettingSave) {
/* Save current settings as a preset */
if(app->preset_count < TAGTINKER_MAX_PRESETS) {
uint8_t idx = app->preset_count++;
app->presets[idx].width = app->esl_width;
app->presets[idx].height = app->esl_height;
app->presets[idx].page = app->img_page;
app->presets[idx].invert = app->invert_text;
app->presets[idx].color_clear = app->color_clear;
strncpy(app->presets[idx].text, app->text_input_buf,
TAGTINKER_PRESET_TEXT_LEN - 1);
app->presets[idx].text[TAGTINKER_PRESET_TEXT_LEN - 1] = '\0';
save_presets_to_sd(app);
notification_message(app->notifications, &sequence_success);
FURI_LOG_I(TAGTINKER_TAG, "Preset saved: %ux%u", app->esl_width, app->esl_height);
}
return;
}
if(index != SettingTransmit) return;
FURI_LOG_I(TAGTINKER_TAG, "TX: %ux%u pg=%u inv=%d clr=%d",
app->esl_width, app->esl_height, app->img_page,
app->invert_text, app->color_clear);
size_t num_pixels = (size_t)app->esl_width * app->esl_height;
uint8_t* pixels = malloc(num_pixels);
if(!pixels) return;
if(app->invert_text) {
render_text_ex(pixels, app->esl_width, app->esl_height, app->text_input_buf, 0, 1);
} else {
render_text(pixels, app->esl_width, app->esl_height, app->text_input_buf);
}
TagTinkerTarget* target = &app->targets[app->selected_target];
tagtinker_build_image_sequence(
app, target->plid, pixels,
app->esl_width, app->esl_height, app->img_page,
0, 0, 250);
free(pixels);
app->tx_spam = false;
scene_manager_next_scene(app->scene_manager, TagTinkerSceneTransmit);
}
/* ── Scene handlers ── */
void tagtinker_scene_size_picker_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
variable_item_list_reset(app->var_item_list);
/* Clamp to valid grid positions */
if(app->esl_width < MIN_W) app->esl_width = MIN_W;
if(app->esl_width > MAX_W) app->esl_width = MAX_W;
if(app->esl_height < MIN_H) app->esl_height = MIN_H;
if(app->esl_height > MAX_H) app->esl_height = MAX_H;
/* Snap to nearest step */
uint8_t w_idx = (app->esl_width - MIN_W + STEP_W / 2) / STEP_W;
if(w_idx >= W_COUNT) w_idx = W_COUNT - 1;
app->esl_width = MIN_W + w_idx * STEP_W;
uint8_t h_idx = (app->esl_height - MIN_H + STEP_H / 2) / STEP_H;
if(h_idx >= H_COUNT) h_idx = H_COUNT - 1;
app->esl_height = MIN_H + h_idx * STEP_H;
/* Width */
VariableItem* item_w = variable_item_list_add(
app->var_item_list, "Width", W_COUNT, width_changed, app);
variable_item_set_current_value_index(item_w, w_idx);
{
char buf[8];
snprintf(buf, sizeof(buf), "%u", app->esl_width);
variable_item_set_current_value_text(item_w, buf);
}
/* Height */
VariableItem* item_h = variable_item_list_add(
app->var_item_list, "Height", H_COUNT, height_changed, app);
variable_item_set_current_value_index(item_h, h_idx);
{
char buf[8];
snprintf(buf, sizeof(buf), "%u", app->esl_height);
variable_item_set_current_value_text(item_h, buf);
}
/* Page */
VariableItem* item_pg = variable_item_list_add(
app->var_item_list, "Page", 8, page_changed, app);
variable_item_set_current_value_index(item_pg, app->img_page);
{
char buf[4];
snprintf(buf, sizeof(buf), "%u", app->img_page);
variable_item_set_current_value_text(item_pg, buf);
}
/* Color (text polarity) */
VariableItem* item_col = variable_item_list_add(
app->var_item_list, "Color", 2, color_changed, app);
variable_item_set_current_value_index(item_col, app->invert_text ? 1 : 0);
variable_item_set_current_value_text(
item_col, app->invert_text ? "W on B" : "B on W");
/* Mode (BW Fast vs BW+Color clear) */
VariableItem* item_mode = variable_item_list_add(
app->var_item_list, "Mode", 2, mode_changed, app);
variable_item_set_current_value_index(item_mode, app->color_clear ? 1 : 0);
variable_item_set_current_value_text(
item_mode, app->color_clear ? "BW+Clr" : "BW Fast");
/* Save preset button */
variable_item_list_add(app->var_item_list, "[*] Save Preset", 0, NULL, app);
/* Transmit button */
variable_item_list_add(app->var_item_list, ">> Send to Tag <<", 0, NULL, app);
variable_item_list_set_enter_callback(app->var_item_list, setting_cb, app);
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewVarItemList);
}
bool tagtinker_scene_size_picker_on_event(void* ctx, SceneManagerEvent event) {
UNUSED(ctx);
UNUSED(event);
return false;
}
void tagtinker_scene_size_picker_on_exit(void* ctx) {
TagTinkerApp* app = ctx;
variable_item_list_reset(app->var_item_list);
}
scenes/tagtinker_scene_target_actions.c
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/*
* Target Actions — what to do with a selected ESL
*/
#include "../tagtinker_app.h"
static void target_actions_cb(void* ctx, uint32_t index) {
TagTinkerApp* app = ctx;
view_dispatcher_send_custom_event(app->view_dispatcher, index);
}
void tagtinker_scene_target_actions_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
submenu_reset(app->submenu);
char header[24];
snprintf(header, sizeof(header), "Tag: %.8s...", app->barcode);
submenu_set_header(app->submenu, header);
submenu_add_item(app->submenu, "Show Text Preset", TagTinkerTargetPushText, target_actions_cb, app);
submenu_add_item(app->submenu, "Show Custom Image", TagTinkerTargetPushImage, target_actions_cb, app);
submenu_add_item(app->submenu, "LED Response Check", TagTinkerTargetPingFlash, target_actions_cb, app);
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewSubmenu);
}
bool tagtinker_scene_target_actions_on_event(void* ctx, SceneManagerEvent event) {
TagTinkerApp* app = ctx;
if(event.type != SceneManagerEventTypeCustom) return false;
switch(event.event) {
case TagTinkerTargetPushText:
scene_manager_next_scene(app->scene_manager, TagTinkerScenePresetList);
return true;
case TagTinkerTargetPushImage:
scene_manager_next_scene(app->scene_manager, TagTinkerSceneImageUpload);
return true;
case TagTinkerTargetPingFlash:
{
TagTinkerTarget* target = &app->targets[app->selected_target];
/* The blink command actually requires two frames:
* 1. A wake ping (lots of repeats)
* 2. The green LED command payload (0x06 0xC9 0x00 0x00 0x00 0x00)
*/
app->frame_seq_count = 2;
app->frame_sequence = malloc(sizeof(uint8_t*) * 2);
app->frame_lengths = malloc(sizeof(size_t) * 2);
app->frame_repeats = malloc(sizeof(uint16_t) * 2);
/* 1. Wake ping */
app->frame_sequence[0] = malloc(TAGTINKER_MAX_FRAME_SIZE);
app->frame_lengths[0] = tagtinker_make_ping_frame(app->frame_sequence[0], target->plid);
app->frame_repeats[0] = 500;
/* 2. LED command */
app->frame_sequence[1] = malloc(TAGTINKER_MAX_FRAME_SIZE);
const uint8_t blink_payload[6] = {0x06, 0xC9, 0x00, 0x00, 0x00, 0x00};
app->frame_lengths[1] = tagtinker_make_addressed_frame(
app->frame_sequence[1], target->plid, blink_payload, 6);
app->frame_repeats[1] = 100;
/* Put the first frame in the preview buffer */
memcpy(app->frame_buf, app->frame_sequence[0], app->frame_lengths[0]);
app->frame_len = app->frame_lengths[0];
app->tx_spam = false;
scene_manager_next_scene(app->scene_manager, TagTinkerSceneTransmit);
}
return true;
}
return false;
}
void tagtinker_scene_target_actions_on_exit(void* ctx) {
TagTinkerApp* app = ctx;
submenu_reset(app->submenu);
}
scenes/tagtinker_scene_target_menu.c
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/*
* Saved tag menu - saved targets + add new
*/
#include "../tagtinker_app.h"
enum {
TargetMenuAddNew = 100,
};
static void target_menu_cb(void* ctx, uint32_t index) {
TagTinkerApp* app = ctx;
view_dispatcher_send_custom_event(app->view_dispatcher, index);
}
void tagtinker_scene_target_menu_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
submenu_reset(app->submenu);
submenu_set_header(app->submenu, "Target Tag");
/* Add new target */
submenu_add_item(app->submenu, "+ Add Tag", TargetMenuAddNew, target_menu_cb, app);
/* List saved targets */
for(uint8_t i = 0; i < app->target_count; i++) {
/* Use index as event id (0..15) */
submenu_add_item(
app->submenu,
app->targets[i].name[0] ? app->targets[i].name : app->targets[i].barcode,
i,
target_menu_cb,
app);
}
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewSubmenu);
}
bool tagtinker_scene_target_menu_on_event(void* ctx, SceneManagerEvent event) {
TagTinkerApp* app = ctx;
if(event.type != SceneManagerEventTypeCustom) return false;
if(event.event == TargetMenuAddNew) {
/* Go to barcode input, then come back */
scene_manager_set_scene_state(
app->scene_manager, TagTinkerSceneBarcodeInput, TagTinkerSceneTargetActions);
scene_manager_next_scene(app->scene_manager, TagTinkerSceneBarcodeInput);
return true;
}
/* Selected a saved target */
if(event.event < app->target_count) {
app->selected_target = (int8_t)event.event;
memcpy(app->barcode, app->targets[event.event].barcode, TAGTINKER_BC_LEN + 1);
memcpy(app->plid, app->targets[event.event].plid, 4);
app->barcode_valid = true;
scene_manager_next_scene(app->scene_manager, TagTinkerSceneTargetActions);
return true;
}
return false;
}
void tagtinker_scene_target_menu_on_exit(void* ctx) {
TagTinkerApp* app = ctx;
submenu_reset(app->submenu);
}
scenes/tagtinker_scene_text_input.c
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/*
* TagTinker — Text Input Scene
*
* Prompts user for a text string, then goes to Size Picker.
*/
#include "../tagtinker_app.h"
static void text_input_done_cb(void* ctx) {
TagTinkerApp* app = ctx;
view_dispatcher_send_custom_event(app->view_dispatcher, 0);
}
void tagtinker_scene_text_input_on_enter(void* ctx) {
TagTinkerApp* app = ctx;
bool clear = scene_manager_get_scene_state(app->scene_manager, TagTinkerSceneTextInput) == 0;
if(clear) {
memset(app->text_input_buf, 0, sizeof(app->text_input_buf));
scene_manager_set_scene_state(app->scene_manager, TagTinkerSceneTextInput, 1);
}
text_input_reset(app->text_input);
text_input_set_header_text(app->text_input, "Text to display:");
text_input_set_result_callback(
app->text_input,
text_input_done_cb,
app,
app->text_input_buf,
sizeof(app->text_input_buf),
clear);
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewTextInput);
}
bool tagtinker_scene_text_input_on_event(void* ctx, SceneManagerEvent event) {
TagTinkerApp* app = ctx;
if(event.type != SceneManagerEventTypeCustom) return false;
if(strlen(app->text_input_buf) == 0) {
scene_manager_search_and_switch_to_previous_scene(
app->scene_manager, TagTinkerSceneTargetActions);
return true;
}
/* Configure settings (Add Preset flow) */
scene_manager_next_scene(app->scene_manager, TagTinkerSceneSizePicker);
return true;
}
void tagtinker_scene_text_input_on_exit(void* ctx) {
TagTinkerApp* app = ctx;
text_input_reset(app->text_input);
}
scenes/tagtinker_scene_transmit.c
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/**
* Transmit Scene
* Displays cool animations while transmitting in a background thread.
*/
#include "../tagtinker_app.h"
#include <furi_hal.h>
typedef struct {
TagTinkerApp* app;
uint32_t tick;
bool completed;
bool ok;
} TxViewModel;
static int32_t tx_thread_callback(void* context) {
TagTinkerApp* app = context;
bool ok = true;
tagtinker_ir_init();
do {
if(app->frame_seq_count > 0) {
for(size_t i = 0; i < app->frame_seq_count; i++) {
if(!app->tx_active) { ok = false; break; }
if(i > 0) furi_delay_ms(20);
ok = tagtinker_ir_transmit(
app->frame_sequence[i], app->frame_lengths[i],
app->frame_repeats[i], 10);
if(!ok) break;
}
} else {
ok = tagtinker_ir_transmit(app->frame_buf, app->frame_len, app->repeats, 10);
}
if(app->tx_spam && app->tx_active) {
furi_delay_ms(50);
}
} while(app->tx_spam && app->tx_active);
app->tx_active = false;
/* Use event payload to securely pass result instead of querying running thread! */
view_dispatcher_send_custom_event(app->view_dispatcher, 101 + (ok ? 0 : 1));
return 0;
}
static void transmit_draw_cb(Canvas* canvas, void* _model) {
TxViewModel* model = _model;
TagTinkerApp* app = model->app;
uint32_t t = model->tick;
/* Left: Top-Down Detailed Flipper Zero Vector Model */
int f_x = -15; // Protruding from left screen edge
int f_y = 10;
int f_w = 40;
int f_h = 36;
/* Main casing */
canvas_draw_rframe(canvas, f_x, f_y, f_w, f_h, 3);
/* Outer screen outline */
canvas_draw_rframe(canvas, f_x + 10, f_y + 4, 20, 16, 2);
/* Screen inner solid */
canvas_draw_box(canvas, f_x + 12, f_y + 6, 16, 12);
/* Flipper Screen highlight glow */
canvas_set_color(canvas, ColorWhite);
canvas_draw_dot(canvas, f_x + 14, f_y + 8);
canvas_draw_dot(canvas, f_x + 15, f_y + 8);
canvas_set_color(canvas, ColorBlack);
/* D-Pad Matrix */
canvas_draw_circle(canvas, f_x + 18, f_y + 27, 5); // Outer
canvas_draw_circle(canvas, f_x + 18, f_y + 27, 2); // Inner button
/* GPIO / Case Vents */
for(int i=0; i<4; i++) {
canvas_draw_dot(canvas, f_x + 32, f_y + 8 + i*3);
canvas_draw_dot(canvas, f_x + 34, f_y + 8 + i*3);
}
/* IR Blaster window on the right tip */
int ir_x = f_x + f_w; // 25
int ir_y = f_y + 10;
canvas_draw_box(canvas, ir_x, ir_y, 4, 16);
int center_y = f_y + 18; /* perfectly aligns with tag center */
if (app->tx_active) {
/* Aggressive Pulsing Data-Stream Chevrons with bits */
uint8_t wave_phase = (t * 2) % 15;
for(int w=0; w<2; w++) {
int r = wave_phase + w*18;
if(r > 0 && r < 20) {
int wave_x = ir_x + 4 + r;
int wave_h = r/2 + 3;
/* 2px thick chevron pointing right */
canvas_draw_line(canvas, wave_x, center_y, wave_x - wave_h/2, center_y - wave_h);
canvas_draw_line(canvas, wave_x, center_y, wave_x - wave_h/2, center_y + wave_h);
canvas_draw_line(canvas, wave_x+1, center_y, wave_x+1 - wave_h/2, center_y - wave_h);
canvas_draw_line(canvas, wave_x+1, center_y, wave_x+1 - wave_h/2, center_y + wave_h);
/* Data stream particles */
if((t + w) % 2 == 0) {
canvas_draw_dot(canvas, wave_x + 3, center_y - wave_h/2);
canvas_draw_dot(canvas, wave_x - 3, center_y + wave_h/2 + 2);
}
}
}
}
/* Right: Detailed ESL tag model */
int tag_x = 52;
int tag_y = 8;
int tag_w = 75;
int tag_h = 40;
/* Outer casing bounding rect */
canvas_draw_rframe(canvas, tag_x, tag_y, tag_w, tag_h, 2);
/* Internal 3D bezel shadow */
canvas_draw_rframe(canvas, tag_x+1, tag_y+1, tag_w-2, tag_h-2, 1);
/* True 32-bit encoded barcode representation on the rim */
int bc_x = tag_x + 3;
int bc_w = 8;
int bc_y = tag_y + 4;
uint8_t bar_pattern[] = {0b10110100, 0b11010010, 0b10011011, 0b01101010};
for(int i=0; i<32; i++) {
if( (bar_pattern[i/8] >> (7-(i%8))) & 1 ) {
canvas_draw_line(canvas, bc_x, bc_y + i, bc_x + bc_w - 1, bc_y + i);
}
}
/* Screen display hardware border */
int scr_x = tag_x + 14;
int scr_y = tag_y + 3;
int scr_w = tag_w - 17;
int scr_h = tag_h - 6;
canvas_draw_frame(canvas, scr_x - 1, scr_y - 1, scr_w + 2, scr_h + 2);
/* E-Paper Sweep Logic */
int cycle = t % 40; /* 2 second loop at 20fps */
if (app->tx_active) {
bool show_result = (cycle >= 20);
if(!show_result) {
canvas_set_font(canvas, FontSecondary);
canvas_draw_str(canvas, scr_x + 2, scr_y + 11, "LAB NOTE");
canvas_set_font(canvas, FontPrimary);
canvas_draw_str(canvas, scr_x + 5, scr_y + 26, "STUDY");
} else {
canvas_set_font(canvas, FontSecondary);
canvas_draw_str_aligned(
canvas, scr_x + scr_w / 2, scr_y + scr_h / 2, AlignCenter, AlignCenter, "FLIPPED ;)");
}
/* Glitchy Matrix Wipe Transition */
if(cycle >= 15 && cycle < 20) {
int wipe_h = ((cycle - 15) * scr_h) / 5;
canvas_draw_box(canvas, scr_x, scr_y, scr_w, wipe_h);
/* Algorithmic leading edge burn/glitch */
for(int xx = 0; xx < scr_w; xx += 2) {
canvas_draw_dot(canvas, scr_x + xx, scr_y + wipe_h + ((xx+t)%4));
}
} else if (cycle >= 20 && cycle < 25) {
int wipe_h = ((cycle - 20) * scr_h) / 5;
canvas_draw_box(canvas, scr_x, scr_y + wipe_h, scr_w, scr_h - wipe_h);
/* Algorithmic trailing edge burn/glitch */
for(int xx = 0; xx < scr_w; xx += 2) {
canvas_draw_dot(canvas, scr_x + xx, scr_y + wipe_h - 1 - ((xx+t)%4));
}
}
} else {
canvas_set_font(canvas, FontSecondary);
canvas_draw_str_aligned(
canvas, scr_x + scr_w / 2, scr_y + scr_h / 2, AlignCenter, AlignCenter, "FLIPPED ;)");
}
/* Submenu action hint decoupled from canvas models */
canvas_set_font(canvas, FontSecondary);
if(app->tx_spam) {
canvas_draw_str_aligned(canvas, 64, 55, AlignCenter, AlignTop, "[<-] Stop Repeat");
} else {
canvas_draw_str_aligned(canvas, 64, 55, AlignCenter, AlignTop, app->tx_active ? "[<-] Cancel" : "[<-] Back");
}
}
void tagtinker_scene_transmit_on_enter(void* context) {
TagTinkerApp* app = context;
if(!app->transmit_view_allocated) {
view_allocate_model(app->transmit_view, ViewModelTypeLockFree, sizeof(TxViewModel));
view_set_context(app->transmit_view, app);
view_set_draw_callback(app->transmit_view, transmit_draw_cb);
app->transmit_view_allocated = true;
}
TxViewModel* model = view_get_model(app->transmit_view);
model->app = app;
model->tick = 0;
model->completed = false;
model->ok = true;
view_commit_model(app->transmit_view, true);
view_dispatcher_switch_to_view(app->view_dispatcher, TagTinkerViewTransmit);
app->tx_active = true;
furi_thread_set_callback(app->tx_thread, tx_thread_callback);
furi_thread_start(app->tx_thread);
}
bool tagtinker_scene_transmit_on_event(void* context, SceneManagerEvent event) {
TagTinkerApp* app = context;
if(event.type == SceneManagerEventTypeBack) {
if(app->tx_active) {
app->tx_active = false;
tagtinker_ir_stop();
return true;
} else {
if(!scene_manager_search_and_switch_to_previous_scene(app->scene_manager, TagTinkerSceneTargetActions)) {
if(!scene_manager_search_and_switch_to_previous_scene(app->scene_manager, TagTinkerSceneBroadcast)) {
if(!scene_manager_search_and_switch_to_previous_scene(app->scene_manager, TagTinkerSceneBroadcastMenu)) {
scene_manager_search_and_switch_to_previous_scene(app->scene_manager, TagTinkerSceneMainMenu);
}
}
}
return true;
}
} else if(event.type == SceneManagerEventTypeTick) {
TxViewModel* model = view_get_model(app->transmit_view);
model->tick++;
view_commit_model(app->transmit_view, true);
return true;
} else if(event.type == SceneManagerEventTypeCustom) {
if(event.event == 101 || event.event == 102) { /* Thread Done */
app->tx_active = false;
tagtinker_ir_deinit();
TxViewModel* model = view_get_model(app->transmit_view);
model->completed = true;
model->ok = (event.event == 101);
view_commit_model(app->transmit_view, true);
notification_message(app->notifications, &sequence_success);
}
return true;
}
return false;
}
void tagtinker_scene_transmit_on_exit(void* context) {
TagTinkerApp* app = context;
app->tx_active = false;
tagtinker_ir_stop();
furi_thread_join(app->tx_thread);
tagtinker_ir_deinit();
if(app->frame_sequence) {
for(size_t i = 0; i < app->frame_seq_count; i++)
free(app->frame_sequence[i]);
free(app->frame_sequence);
free(app->frame_lengths);
free(app->frame_repeats);
app->frame_sequence = NULL;
app->frame_lengths = NULL;
app->frame_repeats = NULL;
app->frame_seq_count = 0;
}
}
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tagtinker_app.c
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/*
* TagTinker - ESL Flipper Zero application
*
* Transmit infrared commands to supported ESL displays
* using the built-in IR LED at 1.255 MHz carrier.
*
* App by I12BP8 - github.com/i12bp8
* Research by furrtek - github.com/furrtek
*
* SPDX-License-Identifier: MIT
*/
#include "tagtinker_app.h"
static bool navigation_cb(void* ctx) {
TagTinkerApp* app = ctx;
return scene_manager_handle_back_event(app->scene_manager);
}
static void tick_cb(void* ctx) {
TagTinkerApp* app = ctx;
scene_manager_handle_tick_event(app->scene_manager);
}
static bool custom_event_cb(void* ctx, uint32_t event) {
TagTinkerApp* app = ctx;
return scene_manager_handle_custom_event(app->scene_manager, event);
}
extern const SceneManagerHandlers tagtinker_scene_handlers;
static TagTinkerApp* app_alloc(void) {
TagTinkerApp* app = malloc(sizeof(TagTinkerApp));
memset(app, 0, sizeof(TagTinkerApp));
/* Defaults */
app->page = 0;
app->duration = 15;
app->repeats = 200;
app->draw_width = 48;
app->draw_height = 48;
app->img_page = 1;
app->esl_width = 200;
app->esl_height = 80;
app->color_clear = false;
app->invert_text = false;
strcpy(app->text_input_buf, "TagTinker");
app->selected_target = -1;
/* Scene manager */
app->scene_manager = scene_manager_alloc(&tagtinker_scene_handlers, app);
/* View dispatcher */
app->view_dispatcher = view_dispatcher_alloc();
view_dispatcher_set_event_callback_context(app->view_dispatcher, app);
view_dispatcher_set_navigation_event_callback(app->view_dispatcher, navigation_cb);
view_dispatcher_set_tick_event_callback(app->view_dispatcher, tick_cb, 50);
view_dispatcher_set_custom_event_callback(app->view_dispatcher, custom_event_cb);
/* GUI */
app->gui = furi_record_open(RECORD_GUI);
view_dispatcher_attach_to_gui(app->view_dispatcher, app->gui, ViewDispatcherTypeFullscreen);
/* Notifications */
app->notifications = furi_record_open(RECORD_NOTIFICATION);
/* Views */
app->submenu = submenu_alloc();
view_dispatcher_add_view(
app->view_dispatcher, TagTinkerViewSubmenu, submenu_get_view(app->submenu));
app->var_item_list = variable_item_list_alloc();
view_dispatcher_add_view(
app->view_dispatcher, TagTinkerViewVarItemList,
variable_item_list_get_view(app->var_item_list));
app->text_input = text_input_alloc();
view_dispatcher_add_view(
app->view_dispatcher, TagTinkerViewTextInput, text_input_get_view(app->text_input));
app->popup = popup_alloc();
view_dispatcher_add_view(
app->view_dispatcher, TagTinkerViewPopup, popup_get_view(app->popup));
app->widget = widget_alloc();
view_dispatcher_add_view(
app->view_dispatcher, TagTinkerViewWidget, widget_get_view(app->widget));
app->numlock = numlock_input_alloc();
view_dispatcher_add_view(
app->view_dispatcher, TagTinkerViewNumlock, numlock_input_get_view(app->numlock));
app->transmit_view = view_alloc();
view_dispatcher_add_view(
app->view_dispatcher, TagTinkerViewTransmit, app->transmit_view);
app->about_view = view_alloc();
view_dispatcher_add_view(
app->view_dispatcher, TagTinkerViewAbout, app->about_view);
app->dialogs = furi_record_open(RECORD_DIALOGS);
/* Allocate Thread and Timer for animations and TX */
app->tx_thread = furi_thread_alloc();
furi_thread_set_name(app->tx_thread, "TagTinkerTx");
furi_thread_set_stack_size(app->tx_thread, 2048);
furi_thread_set_priority(app->tx_thread, FuriThreadPriorityHighest);
furi_thread_set_context(app->tx_thread, app);
return app;
}
static void app_free(TagTinkerApp* app) {
tagtinker_ir_deinit();
if(app->frame_sequence) {
for(size_t i = 0; i < app->frame_seq_count; i++)
free(app->frame_sequence[i]);
free(app->frame_sequence);
free(app->frame_lengths);
free(app->frame_repeats);
}
view_dispatcher_remove_view(app->view_dispatcher, TagTinkerViewSubmenu);
view_dispatcher_remove_view(app->view_dispatcher, TagTinkerViewVarItemList);
view_dispatcher_remove_view(app->view_dispatcher, TagTinkerViewTextInput);
view_dispatcher_remove_view(app->view_dispatcher, TagTinkerViewPopup);
view_dispatcher_remove_view(app->view_dispatcher, TagTinkerViewWidget);
view_dispatcher_remove_view(app->view_dispatcher, TagTinkerViewNumlock);
view_dispatcher_remove_view(app->view_dispatcher, TagTinkerViewTransmit);
view_dispatcher_remove_view(app->view_dispatcher, TagTinkerViewAbout);
submenu_free(app->submenu);
variable_item_list_free(app->var_item_list);
text_input_free(app->text_input);
popup_free(app->popup);
widget_free(app->widget);
numlock_input_free(app->numlock);
view_dispatcher_free(app->view_dispatcher);
scene_manager_free(app->scene_manager);
furi_record_close(RECORD_GUI);
furi_record_close(RECORD_NOTIFICATION);
furi_record_close(RECORD_DIALOGS);
view_free(app->transmit_view);
view_free(app->about_view);
furi_thread_free(app->tx_thread);
free(app);
}
int32_t tagtinker_app_main(void* p) {
UNUSED(p);
TagTinkerApp* app = app_alloc();
scene_manager_next_scene(app->scene_manager, TagTinkerSceneMainMenu);
view_dispatcher_run(app->view_dispatcher);
app_free(app);
return 0;
}
tagtinker_app.h
+157
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/*
* TagTinker — App State
*/
#pragma once
#include <furi.h>
#include <gui/gui.h>
#include <gui/view_dispatcher.h>
#include <gui/view.h>
#include <gui/scene_manager.h>
#include <gui/modules/submenu.h>
#include <gui/modules/text_input.h>
#include <gui/modules/variable_item_list.h>
#include <gui/modules/popup.h>
#include <gui/modules/widget.h>
#include <dialogs/dialogs.h>
#include <notification/notification_messages.h>
#include <storage/storage.h>
#include "views/numlock_input.h"
#include "scenes/tagtinker_scene.h"
#include "protocol/tagtinker_proto.h"
#include "ir/tagtinker_ir.h"
#define TAGTINKER_TAG "TagTinker"
#define TAGTINKER_DISPLAY_NAME "TagTinker"
#define TAGTINKER_VERSION "1.1"
#define TAGTINKER_BC_LEN 17
#define TAGTINKER_HEX_LEN 64
#define TAGTINKER_MAX_TARGETS 16
#define TAGTINKER_TARGET_NAME_LEN 16
#define TAGTINKER_MAX_PRESETS 6
#define TAGTINKER_PRESET_TEXT_LEN 32
/* Views */
typedef enum {
TagTinkerViewSubmenu,
TagTinkerViewVarItemList,
TagTinkerViewTextInput,
TagTinkerViewPopup,
TagTinkerViewWidget,
TagTinkerViewNumlock,
TagTinkerViewTargetActions,
TagTinkerViewTransmit,
TagTinkerViewAbout,
} TagTinkerView;
/* Saved ESL target */
typedef struct {
char name[TAGTINKER_TARGET_NAME_LEN + 1];
char barcode[TAGTINKER_BC_LEN + 1];
uint8_t plid[4];
} TagTinkerTarget;
struct TagTinkerApp {
/* GUI */
Gui* gui;
ViewDispatcher* view_dispatcher;
SceneManager* scene_manager;
NotificationApp* notifications;
DialogsApp* dialogs;
/* Views */
Submenu* submenu;
VariableItemList* var_item_list;
TextInput* text_input;
Popup* popup;
Widget* widget;
NumlockInput* numlock;
View* target_actions_view;
View* transmit_view;
View* about_view;
bool transmit_view_allocated;
bool about_view_allocated;
/* TX state */
bool tx_active;
FuriThread* tx_thread;
/* Broadcast settings */
uint8_t broadcast_type;
uint8_t page;
uint16_t duration;
uint16_t repeats;
bool forever;
bool tx_spam;
/* Current target */
char barcode[TAGTINKER_BC_LEN + 1];
uint8_t plid[4];
bool barcode_valid;
int8_t selected_target; /* -1 = none */
/* Saved targets */
TagTinkerTarget targets[TAGTINKER_MAX_TARGETS];
uint8_t target_count;
/* Text to push */
char text_input_buf[64];
/* ESL display size for current target */
uint16_t esl_width;
uint16_t esl_height;
/* Frame buffer */
uint8_t frame_buf[TAGTINKER_MAX_FRAME_SIZE];
size_t frame_len;
/* Multi-frame sequence */
uint8_t** frame_sequence;
size_t* frame_lengths;
uint16_t* frame_repeats;
size_t frame_seq_count;
bool invert_text;
bool color_clear;
/* Saved presets */
struct {
uint16_t width;
uint16_t height;
uint8_t page;
bool invert;
bool color_clear;
char text[TAGTINKER_PRESET_TEXT_LEN];
} presets[TAGTINKER_MAX_PRESETS];
uint8_t preset_count;
/* Image settings */
uint8_t img_page;
uint16_t draw_width;
uint16_t draw_height;
/* Indicates which mode triggered raw cmd (0=broadcast, 1=targeted) */
uint8_t raw_mode;
};
/* Main menu items */
typedef enum {
TagTinkerMenuBroadcast,
TagTinkerMenuTargetESL,
TagTinkerMenuAbout,
} TagTinkerMainMenuItem;
/* Broadcast menu items */
typedef enum {
TagTinkerBroadcastFlipPage,
TagTinkerBroadcastDebugScreen,
} TagTinkerBroadcastMenuItem;
/* Target action items */
typedef enum {
TagTinkerTargetPushText,
TagTinkerTargetPushImage,
TagTinkerTargetPingFlash,
} TagTinkerTargetActionItem;
tools/tagtinker.html
+392
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@@ -0,0 +1,392 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>TagTinker Image Converter</title>
<style>
:root {
--bg: #09090b;
--surface: #18181b;
--border: #27272a;
--primary: #FF8A00; /* Flipper Orange */
--primary-hover: #ff9d2e;
--text: #fafafa;
--text-dim: #a1a1aa;
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', -apple-system, sans-serif; }
body {
background-color: var(--bg);
color: var(--text);
min-height: 100vh;
display: flex;
flex-direction: column;
align-items: center;
padding: 2rem;
}
.container {
width: 100%;
max-width: 800px;
background: var(--surface);
border: 1px solid var(--border);
border-radius: 12px;
padding: 2rem;
box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
header {
margin-bottom: 2rem;
text-align: center;
}
h1 {
font-size: 2rem;
font-weight: 800;
letter-spacing: -1px;
color: var(--primary);
text-transform: uppercase;
}
header p { color: var(--text-dim); margin-top: 0.5rem; }
.dropzone {
border: 2px dashed var(--border);
border-radius: 12px;
padding: 4rem 2rem;
text-align: center;
cursor: pointer;
transition: all 0.3s ease;
background: rgba(255,255,255,0.02);
margin-bottom: 2rem;
display: block;
position: relative;
overflow: hidden;
}
.dropzone:hover {
border-color: var(--primary);
background: rgba(255,138,0,0.05);
transform: translateY(-2px);
}
.dropzone input {
position: absolute;
width: 0.1px;
height: 0.1px;
opacity: 0;
overflow: hidden;
z-index: -1;
}
.controls {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
gap: 1rem;
margin-bottom: 2rem;
}
.control-group {
display: flex;
flex-direction: column;
gap: 0.5rem;
}
label { font-size: 0.875rem; font-weight: 600; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }
select, input[type="file"] {
padding: 0.75rem;
background: var(--bg);
border: 1px solid var(--border);
color: var(--text);
border-radius: 6px;
outline: none;
font-size: 1rem;
}
select:focus { border-color: var(--primary); }
.preview-section {
border: 1px solid var(--border);
border-radius: 8px;
padding: 1rem;
background: var(--bg);
display: flex;
flex-direction: column;
align-items: center;
gap: 1rem;
margin-bottom: 2rem;
}
canvas {
image-rendering: pixelated;
max-width: 100%;
background: white;
border: 1px solid #333;
box-shadow: 0 0 10px rgba(0,0,0,0.5);
}
button {
width: 100%;
background: var(--primary);
color: #000;
border: none;
padding: 1rem;
border-radius: 6px;
font-size: 1.1rem;
font-weight: 700;
text-transform: uppercase;
cursor: pointer;
transition: background 0.2s;
}
button:hover { background: var(--primary-hover); }
button:disabled { background: var(--border); color: var(--text-dim); cursor: not-allowed; }
</style>
</head>
<body>
<div class="container">
<header>
<h1>TagTinker Image Converter</h1>
<p>Prepare 1-bit BMP assets for educational ESL display experiments on hardware you own.</p>
</header>
<label class="dropzone" id="dropzone">
<input type="file" id="fileInput" accept="image/*">
<div id="dropText">
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="var(--primary)" stroke-width="2" style="margin-bottom: 1rem;">
<path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4M17 8l-5-5-5 5M12 3v12"/>
</svg><br>
<strong>Click or Drag & Drop</strong><br>
<span style="font-size: 0.9em; color: var(--text-dim);">JPEG, PNG, WebP accepted</span>
</div>
</label>
<div class="controls">
<div class="control-group">
<label>Target Resolution</label>
<select id="resSelect">
<option value="128x64">128x64 (Standard Small)</option>
<option value="200x90">200x90 (Medium Tag)</option>
<option value="250x122">250x122 (Large Tag 1)</option>
<option value="400x300">400x300 (Large E-Paper)</option>
</select>
</div>
<div class="control-group">
<label>Dithering Engine</label>
<select id="ditherSelect">
<option value="floyd">Floyd-Steinberg (High Detail)</option>
<option value="atkinson">Atkinson (High Contrast)</option>
<option value="threshold">Binary Threshold (Logos/Text)</option>
</select>
</div>
</div>
<div class="preview-section" id="previewArea" style="display: none;">
<label>Pixel Perfect Preview</label>
<canvas id="canvasPreview"></canvas>
</div>
<button id="downloadBtn" disabled>Download BMP Asset</button>
</div>
<script>
const fileInput = document.getElementById('fileInput');
const dropzone = document.getElementById('dropzone');
const resSelect = document.getElementById('resSelect');
const ditherSelect = document.getElementById('ditherSelect');
const canvas = document.getElementById('canvasPreview');
const ctx = canvas.getContext('2d');
const previewArea = document.getElementById('previewArea');
const downloadBtn = document.getElementById('downloadBtn');
let currentImage = null;
let lastPayloadBuffer = null;
// UI Handlers
dropzone.addEventListener('dragover', e => { e.preventDefault(); dropzone.style.borderColor = 'var(--primary)'; });
dropzone.addEventListener('dragleave', e => { e.preventDefault(); dropzone.style.borderColor = 'var(--border)'; });
dropzone.addEventListener('drop', e => {
e.preventDefault();
dropzone.style.borderColor = 'var(--border)';
if(e.dataTransfer.files.length) processFile(e.dataTransfer.files[0]);
});
fileInput.addEventListener('change', e => { if(e.target.files.length) processFile(e.target.files[0]); });
resSelect.addEventListener('change', updatePreview);
ditherSelect.addEventListener('change', updatePreview);
downloadBtn.addEventListener('click', () => {
if(!lastPayloadBuffer) return;
const [w, h] = resSelect.value.split('x').map(Number);
const blob = new Blob([lastPayloadBuffer], { type: "image/bmp" });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `esl_study_${w}x${h}.bmp`;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
});
function processFile(file) {
const reader = new FileReader();
reader.onload = (e) => {
const img = new Image();
img.onload = () => {
currentImage = img;
updatePreview();
};
img.src = e.target.result;
};
reader.readAsDataURL(file);
}
function updatePreview() {
if(!currentImage) return;
const [tw, th] = resSelect.value.split('x').map(Number);
canvas.width = tw;
canvas.height = th;
previewArea.style.display = 'flex';
// Calculate scaling to 'Cover' the target resolution
const scale = Math.max(tw / currentImage.width, th / currentImage.height);
const sw = currentImage.width * scale;
const sh = currentImage.height * scale;
const offsetX = (tw - sw) / 2;
const offsetY = (th - sh) / 2;
ctx.fillStyle = 'white';
ctx.fillRect(0, 0, tw, th);
ctx.drawImage(currentImage, offsetX, offsetY, sw, sh);
const imageData = ctx.getImageData(0, 0, tw, th);
const data = imageData.data;
// Greyscale conversion
const greyscale = new Float32Array(tw * th);
for(let i=0; i<data.length; i+=4) {
// Luminance
greyscale[i/4] = 0.299*data[i] + 0.587*data[i+1] + 0.114*data[i+2];
}
const method = ditherSelect.value;
if(method === 'threshold') {
for(let i=0; i<greyscale.length; i++) {
const c = greyscale[i] < 128 ? 0 : 255;
data[i*4] = data[i*4+1] = data[i*4+2] = c;
}
} else if (method === 'floyd') {
for(let y=0; y<th; y++) {
for(let x=0; x<tw; x++) {
const idx = y*tw + x;
const oldPixel = greyscale[idx];
const newPixel = oldPixel < 128 ? 0 : 255;
data[idx*4] = data[idx*4+1] = data[idx*4+2] = newPixel;
const err = oldPixel - newPixel;
if(x+1 < tw) greyscale[idx+1] += err * 7/16;
if(y+1 < th) {
if(x-1 >= 0) greyscale[idx+tw-1] += err * 3/16;
greyscale[idx+tw] += err * 5/16;
if(x+1 < tw) greyscale[idx+tw+1] += err * 1/16;
}
}
}
} else if (method === 'atkinson') {
for(let y=0; y<th; y++) {
for(let x=0; x<tw; x++) {
const idx = y*tw + x;
const oldPixel = greyscale[idx];
const newPixel = oldPixel < 128 ? 0 : 255;
data[idx*4] = data[idx*4+1] = data[idx*4+2] = newPixel;
const err = Math.floor((oldPixel - newPixel)/8);
if(x+1 < tw) greyscale[idx+1] += err;
if(x+2 < tw) greyscale[idx+2] += err;
if(y+1 < th) {
if(x-1 >= 0) greyscale[idx+tw-1] += err;
greyscale[idx+tw] += err;
if(x+1 < tw) greyscale[idx+tw+1] += err;
}
if(y+2 < th) greyscale[idx+tw*2] += err;
}
}
}
ctx.putImageData(imageData, 0, 0);
generateBMP();
downloadBtn.disabled = false;
usbBtn.disabled = false;
}
function generateBMP() {
const [w, h] = resSelect.value.split('x').map(Number);
const imageData = ctx.getImageData(0, 0, w, h).data;
const binaryPixels = new Uint8Array(w * h);
for(let i=0; i<binaryPixels.length; i++) {
// Determine if pixel is white (1) or black (0) for BMP
binaryPixels[i] = imageData[i*4] > 127 ? 1 : 0;
}
const rowStride = Math.floor((w + 31) / 32) * 4;
const pixelDataSize = rowStride * h;
const fileSize = 14 + 40 + 8 + pixelDataSize;
const buffer = new ArrayBuffer(fileSize);
const view = new DataView(buffer);
// BMP Header
view.setUint8(0, 0x42); // 'B'
view.setUint8(1, 0x4D); // 'M'
view.setUint32(2, fileSize, true);
view.setUint32(6, 0, true);
view.setUint32(10, 62, true); // Offset to Data
// DIB Header
view.setUint32(14, 40, true);
view.setUint32(18, w, true);
view.setInt32(22, h, true); // Positive = Bottom-Up
view.setUint16(26, 1, true); // Color Planes
view.setUint16(28, 1, true); // Bits per pixel (1-bit)
view.setUint32(30, 0, true); // BI_RGB
view.setUint32(34, pixelDataSize, true);
view.setUint32(38, 2835, true);
view.setUint32(42, 2835, true);
view.setUint32(46, 2, true);
view.setUint32(50, 0, true);
// Color Table
view.setUint32(54, 0x00000000, true); // Color 0: Black
view.setUint32(58, 0x00FFFFFF, true); // Color 1: White
// Pixel Data
const dataView = new Uint8Array(buffer, 62);
for (let y = 0; y < h; y++) {
// Bottom-Up
const srcY = h - 1 - y;
for (let x = 0; x < w; x++) {
const px = binaryPixels[srcY * w + x];
if (px === 1) { // Set bit if White
const byteIndex = y * rowStride + Math.floor(x / 8);
const bitShift = 7 - (x % 8);
dataView[byteIndex] |= (1 << bitShift);
}
}
}
const blob = new Blob([buffer], { type: "image/bmp" });
lastPayloadBuffer = buffer;
}
</script>
</body>
</html>
views/numlock_input.c
+194
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/*
* TagTinker — Number Lock Barcode Input
*
* Clean centered digit entry: N + 16 digits in groups of 4.
* UP/DOWN cycle, LEFT/RIGHT move, OK confirm, BACK cancel.
*/
#include "numlock_input.h"
#include <gui/elements.h>
#include <furi.h>
#include <string.h>
#define NUM_DIGITS 16
#define CHAR_W 6
#define GROUP_SIZE 4
#define GROUP_GAP 5
#define PREFIX_W 10
typedef struct {
uint8_t digits[NUM_DIGITS];
uint8_t cursor;
} NumlockModel;
static uint8_t digit_x(uint8_t i) {
uint8_t groups = i / GROUP_SIZE;
/* Spread across horizontal: Prefix(8) + 16 chars(6) + 3 gaps(5) = 119. Left margin = 4. */
return 4 + 8 + i * CHAR_W + groups * GROUP_GAP;
}
static void numlock_draw(Canvas* canvas, void* model_v) {
NumlockModel* m = model_v;
canvas_clear(canvas);
/* 1. Header Bar — Inverted Tech Banner */
canvas_set_color(canvas, ColorBlack);
canvas_draw_box(canvas, 0, 0, 128, 12);
canvas_set_color(canvas, ColorWhite);
canvas_set_font(canvas, FontSecondary);
canvas_draw_str_aligned(canvas, 64, 6, AlignCenter, AlignCenter, "SET BARCODE");
canvas_set_color(canvas, ColorBlack);
/* 2. Main Input Frame — Heavy industrial border */
int frame_y = 19;
int frame_h = 24;
canvas_draw_rframe(canvas, 1, frame_y, 126, frame_h, 2);
/* Inner shadow/border detail */
canvas_draw_line(canvas, 2, frame_y+1, 125, frame_y+1);
const uint8_t baseline = 36;
canvas_set_font(canvas, FontPrimary);
/* Fixed 'N' Prefix */
canvas_draw_str(canvas, 4, baseline, "N");
/* Iterating Digits */
for(uint8_t i = 0; i < NUM_DIGITS; i++) {
uint8_t x = digit_x(i);
char ch[2] = {'0' + m->digits[i], '\0'};
if(i == m->cursor) {
/* Selected digit bounding block */
canvas_draw_box(canvas, x - 1, frame_y + 3, CHAR_W + 2, frame_h - 6);
canvas_set_color(canvas, ColorWhite);
canvas_draw_str(canvas, x, baseline, ch);
canvas_set_color(canvas, ColorBlack);
/* Sharp Navigator Arrows pointing at selection */
uint8_t cx = x + CHAR_W / 2 - 1; /* Center of char */
/* Up pointer */
canvas_draw_line(canvas, cx, frame_y - 4, cx - 2, frame_y - 2);
canvas_draw_line(canvas, cx, frame_y - 4, cx + 2, frame_y - 2);
canvas_draw_line(canvas, cx, frame_y - 4, cx, frame_y - 1);
/* Down pointer */
canvas_draw_line(canvas, cx, frame_y + frame_h + 3, cx - 2, frame_y + frame_h + 1);
canvas_draw_line(canvas, cx, frame_y + frame_h + 3, cx + 2, frame_y + frame_h + 1);
canvas_draw_line(canvas, cx, frame_y + frame_h + 3, cx, frame_y + frame_h);
} else {
/* Standard unselected digit */
canvas_draw_str(canvas, x, baseline, ch);
}
}
/* 3. Footer UI with Clean Button Callouts */
canvas_set_font(canvas, FontSecondary);
/* D-Pad Hint Icons */
canvas_draw_str(canvas, 2, 59, "<\x12\x13> Sel");
canvas_draw_str(canvas, 45, 59, "^\x18\x19v Set");
/* Thick OK Button */
canvas_draw_rbox(canvas, 92, 48, 34, 14, 2);
canvas_set_color(canvas, ColorWhite);
canvas_draw_str_aligned(canvas, 109, 55, AlignCenter, AlignCenter, "Hold OK");
canvas_set_color(canvas, ColorBlack);
}
static bool numlock_input(InputEvent* input, void* ctx) {
NumlockInput* numlock = ctx;
if(input->type != InputTypePress && input->type != InputTypeRepeat) return false;
bool consumed = false;
with_view_model(
numlock->view,
NumlockModel * m,
{
switch(input->key) {
case InputKeyUp:
m->digits[m->cursor] = (m->digits[m->cursor] + 1) % 10;
consumed = true;
break;
case InputKeyDown:
m->digits[m->cursor] = (m->digits[m->cursor] + 9) % 10;
consumed = true;
break;
case InputKeyLeft:
if(m->cursor > 0) m->cursor--;
consumed = true;
break;
case InputKeyRight:
if(m->cursor < NUM_DIGITS - 1) m->cursor++;
consumed = true;
break;
case InputKeyOk: {
char barcode[18];
barcode[0] = 'N';
for(uint8_t i = 0; i < NUM_DIGITS; i++)
barcode[1 + i] = '0' + m->digits[i];
barcode[17] = '\0';
if(numlock->callback)
numlock->callback(numlock->callback_ctx, barcode);
consumed = true;
break;
}
default:
break;
}
},
consumed);
return consumed;
}
NumlockInput* numlock_input_alloc(void) {
NumlockInput* numlock = malloc(sizeof(NumlockInput));
numlock->view = view_alloc();
view_allocate_model(numlock->view, ViewModelTypeLocking, sizeof(NumlockModel));
view_set_draw_callback(numlock->view, numlock_draw);
view_set_input_callback(numlock->view, numlock_input);
view_set_context(numlock->view, numlock);
numlock->callback = NULL;
numlock->callback_ctx = NULL;
with_view_model(
numlock->view,
NumlockModel * m,
{
memset(m->digits, 0, NUM_DIGITS);
m->digits[0] = 4;
m->cursor = 1;
},
true);
return numlock;
}
void numlock_input_free(NumlockInput* numlock) {
view_free(numlock->view);
free(numlock);
}
View* numlock_input_get_view(NumlockInput* numlock) {
return numlock->view;
}
void numlock_input_set_callback(NumlockInput* numlock, NumlockCallback cb, void* ctx) {
numlock->callback = cb;
numlock->callback_ctx = ctx;
}
void numlock_input_reset(NumlockInput* numlock) {
with_view_model(
numlock->view,
NumlockModel * m,
{
memset(m->digits, 0, NUM_DIGITS);
m->digits[0] = 4;
m->cursor = 1;
},
true);
}
views/numlock_input.h
+30
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/*
* TagTinker - number lock barcode input view
*
* Custom view for entering a 16-digit ESL barcode.
* Format: N + 16 digits (auto-prefixed 'N').
*
* Controls:
* UP/DOWN - cycle digit 0-9
* LEFT/RIGHT - move cursor position
* OK - confirm barcode
* BACK - cancel
*/
#pragma once
#include <gui/view.h>
typedef void (*NumlockCallback)(void* ctx, const char* barcode);
typedef struct {
View* view;
NumlockCallback callback;
void* callback_ctx;
} NumlockInput;
NumlockInput* numlock_input_alloc(void);
void numlock_input_free(NumlockInput* numlock);
View* numlock_input_get_view(NumlockInput* numlock);
void numlock_input_set_callback(NumlockInput* numlock, NumlockCallback cb, void* ctx);
void numlock_input_reset(NumlockInput* numlock);
views/tagtinker_font.h
+175
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/*
* Helper to render simple 5x7 bitmap text onto the ESL image buffer.
*/
#ifndef TAGTINKER_FONT_H
#define TAGTINKER_FONT_H
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#define FONT_CHAR_W 5
#define FONT_CHAR_H 7
/* Standard 5x7 ASCII bitmap font (characters 32-127) */
static const uint8_t font_5x7[][5] = {
{0x00, 0x00, 0x00, 0x00, 0x00}, /* */
{0x00, 0x00, 0x5f, 0x00, 0x00}, /* ! */
{0x00, 0x07, 0x00, 0x07, 0x00}, /* " */
{0x14, 0x7f, 0x14, 0x7f, 0x14}, /* # */
{0x24, 0x2a, 0x7f, 0x2a, 0x12}, /* $ */
{0x23, 0x13, 0x08, 0x64, 0x62}, /* % */
{0x36, 0x49, 0x55, 0x22, 0x50}, /* & */
{0x00, 0x05, 0x03, 0x00, 0x00}, /* ' */
{0x00, 0x1c, 0x22, 0x41, 0x00}, /* ( */
{0x00, 0x41, 0x22, 0x1c, 0x00}, /* ) */
{0x08, 0x2a, 0x1c, 0x2a, 0x08}, /* * */
{0x08, 0x08, 0x3e, 0x08, 0x08}, /* + */
{0x00, 0x50, 0x30, 0x00, 0x00}, /* , */
{0x08, 0x08, 0x08, 0x08, 0x08}, /* - */
{0x00, 0x60, 0x60, 0x00, 0x00}, /* . */
{0x20, 0x10, 0x08, 0x04, 0x02}, /* / */
{0x3e, 0x51, 0x49, 0x45, 0x3e}, /* 0 */
{0x00, 0x42, 0x7f, 0x40, 0x00}, /* 1 */
{0x42, 0x61, 0x51, 0x49, 0x46}, /* 2 */
{0x21, 0x41, 0x45, 0x4b, 0x31}, /* 3 */
{0x18, 0x14, 0x12, 0x7f, 0x10}, /* 4 */
{0x27, 0x45, 0x45, 0x45, 0x39}, /* 5 */
{0x3c, 0x4a, 0x49, 0x49, 0x30}, /* 6 */
{0x01, 0x71, 0x09, 0x05, 0x03}, /* 7 */
{0x36, 0x49, 0x49, 0x49, 0x36}, /* 8 */
{0x06, 0x49, 0x49, 0x29, 0x1e}, /* 9 */
{0x00, 0x36, 0x36, 0x00, 0x00}, /* : */
{0x00, 0x56, 0x36, 0x00, 0x00}, /* ; */
{0x00, 0x08, 0x14, 0x22, 0x41}, /* < */
{0x14, 0x14, 0x14, 0x14, 0x14}, /* = */
{0x41, 0x22, 0x14, 0x08, 0x00}, /* > */
{0x02, 0x01, 0x51, 0x09, 0x06}, /* ? */
{0x32, 0x49, 0x79, 0x41, 0x3e}, /* @ */
{0x7e, 0x11, 0x11, 0x11, 0x7e}, /* A */
{0x7f, 0x49, 0x49, 0x49, 0x36}, /* B */
{0x3e, 0x41, 0x41, 0x41, 0x22}, /* C */
{0x7f, 0x41, 0x41, 0x22, 0x1c}, /* D */
{0x7f, 0x49, 0x49, 0x49, 0x41}, /* E */
{0x7f, 0x09, 0x09, 0x01, 0x01}, /* F */
{0x3e, 0x41, 0x41, 0x51, 0x32}, /* G */
{0x7f, 0x08, 0x08, 0x08, 0x7f}, /* H */
{0x00, 0x41, 0x7f, 0x41, 0x00}, /* I */
{0x20, 0x40, 0x41, 0x3f, 0x01}, /* J */
{0x7f, 0x08, 0x14, 0x22, 0x41}, /* K */
{0x7f, 0x40, 0x40, 0x40, 0x40}, /* L */
{0x7f, 0x02, 0x04, 0x02, 0x7f}, /* M */
{0x7f, 0x04, 0x08, 0x10, 0x7f}, /* N */
{0x3e, 0x41, 0x41, 0x41, 0x3e}, /* O */
{0x7f, 0x09, 0x09, 0x09, 0x06}, /* P */
{0x3e, 0x41, 0x51, 0x21, 0x5e}, /* Q */
{0x7f, 0x09, 0x19, 0x29, 0x46}, /* R */
{0x46, 0x49, 0x49, 0x49, 0x31}, /* S */
{0x01, 0x01, 0x7f, 0x01, 0x01}, /* T */
{0x3f, 0x40, 0x40, 0x40, 0x3f}, /* U */
{0x1f, 0x20, 0x40, 0x20, 0x1f}, /* V */
{0x7f, 0x20, 0x18, 0x20, 0x7f}, /* W */
{0x63, 0x14, 0x08, 0x14, 0x63}, /* X */
{0x03, 0x04, 0x78, 0x04, 0x03}, /* Y */
{0x61, 0x51, 0x49, 0x45, 0x43}, /* Z */
{0x00, 0x00, 0x7f, 0x41, 0x41}, /* [ */
{0x02, 0x04, 0x08, 0x10, 0x20}, /* \ */
{0x41, 0x41, 0x7f, 0x00, 0x00}, /* ] */
{0x04, 0x02, 0x01, 0x02, 0x04}, /* ^ */
{0x40, 0x40, 0x40, 0x40, 0x40}, /* _ */
{0x00, 0x01, 0x02, 0x04, 0x00}, /* ` */
{0x20, 0x54, 0x54, 0x54, 0x78}, /* a */
{0x7f, 0x48, 0x44, 0x44, 0x38}, /* b */
{0x38, 0x44, 0x44, 0x44, 0x20}, /* c */
{0x38, 0x44, 0x44, 0x48, 0x7f}, /* d */
{0x38, 0x54, 0x54, 0x54, 0x18}, /* e */
{0x08, 0x7e, 0x09, 0x01, 0x02}, /* f */
{0x08, 0x14, 0x54, 0x54, 0x3c}, /* g */
{0x7f, 0x08, 0x04, 0x04, 0x78}, /* h */
{0x00, 0x44, 0x7d, 0x40, 0x00}, /* i */
{0x20, 0x40, 0x44, 0x3d, 0x00}, /* j */
{0x00, 0x7f, 0x10, 0x28, 0x44}, /* k */
{0x00, 0x41, 0x7f, 0x40, 0x00}, /* l */
{0x7c, 0x04, 0x18, 0x04, 0x78}, /* m */
{0x7c, 0x08, 0x04, 0x04, 0x78}, /* n */
{0x38, 0x44, 0x44, 0x44, 0x38}, /* o */
{0x7c, 0x14, 0x14, 0x14, 0x08}, /* p */
{0x08, 0x14, 0x14, 0x18, 0x7c}, /* q */
{0x7c, 0x08, 0x04, 0x04, 0x08}, /* r */
{0x48, 0x54, 0x54, 0x54, 0x20}, /* s */
{0x04, 0x3f, 0x44, 0x40, 0x20}, /* t */
{0x3c, 0x40, 0x40, 0x20, 0x7c}, /* u */
{0x1c, 0x20, 0x40, 0x20, 0x1c}, /* v */
{0x3c, 0x40, 0x30, 0x40, 0x3c}, /* w */
{0x44, 0x28, 0x10, 0x28, 0x44}, /* x */
{0x0c, 0x50, 0x50, 0x50, 0x3c}, /* y */
{0x44, 0x64, 0x54, 0x4c, 0x44}, /* z */
{0x00, 0x08, 0x36, 0x41, 0x00}, /* { */
{0x00, 0x00, 0x7f, 0x00, 0x00}, /* | */
{0x00, 0x41, 0x36, 0x08, 0x00}, /* } */
{0x08, 0x04, 0x08, 0x10, 0x08}, /* ~ */
};
/* Sets a pixel in a 1-byte-per-pixel buffer */
static inline void set_pixel(uint8_t* buf, uint16_t w, uint16_t h, uint16_t x, uint16_t y, uint8_t val) {
if(x < w && y < h) buf[y * w + x] = val;
}
/*
* Render text to fill the entire buffer.
* bg_val/fg_val control polarity:
* Normal: bg=1 (white), fg=0 (black)
* Inverted: bg=0 (black), fg=1 (white)
* Zero margin — text fills edge to edge.
*/
static inline void render_text_ex(uint8_t* buf, uint16_t w, uint16_t h,
const char* text, uint8_t bg_val, uint8_t fg_val) {
memset(buf, bg_val, w * h);
size_t len = strlen(text);
if(len == 0) return;
uint16_t scale_w = w / (len * (FONT_CHAR_W + 1));
uint16_t scale_h = h / FONT_CHAR_H;
if(scale_w < 1) scale_w = 1;
if(scale_h < 1) scale_h = 1;
/* Use uniform scale = min(w,h) for proportional text + better RLE */
uint16_t scale = (scale_w < scale_h) ? scale_w : scale_h;
uint16_t text_w = len * (FONT_CHAR_W + 1) * scale;
uint16_t text_h = FONT_CHAR_H * scale;
uint16_t start_x = (w - text_w) / 2;
uint16_t start_y = (h - text_h) / 2;
for(size_t i = 0; i < len; i++) {
char c = text[i];
if(c < 32 || c > 126) c = '?';
uint8_t glyph_idx = c - 32;
for(uint8_t gx = 0; gx < FONT_CHAR_W; gx++) {
uint8_t col = font_5x7[glyph_idx][gx];
for(uint8_t gy = 0; gy < FONT_CHAR_H; gy++) {
if(col & (1 << gy)) {
for(uint16_t sx = 0; sx < scale; sx++) {
for(uint16_t sy = 0; sy < scale; sy++) {
uint16_t px = start_x + (i * (FONT_CHAR_W + 1) + gx) * scale + sx;
uint16_t py = start_y + gy * scale + sy;
set_pixel(buf, w, h, px, py, fg_val);
}
}
}
}
}
}
}
/* Convenience: normal polarity (white bg=1, black text=0) */
static inline void render_text(uint8_t* buf, uint16_t w, uint16_t h, const char* text) {
render_text_ex(buf, w, h, text, 1, 0);
}
#endif