Files
MeshCore/boards/t-echo.json
me 28b1586fd7 feat(techo-lite): add Non-Shell (screenless) companion BLE variant
T-Echo Lite Non-Shell has no ePaper display, but the existing
companion BLE env inherits DISPLAY_CLASS=GxEPDDisplay from the base
env. This causes display.begin() to run on non-existent hardware,
corrupting BLE initialization and generating a random PIN that
cannot be displayed, making BLE connection impossible.

Add LilyGo_T-Echo-Lite_non_shell_companion_radio_ble env that:
- excludes DISPLAY_CLASS and ePaper-related build flags
- removes GxEPDDisplay.cpp and ui-new from build sources
- uses static BLE_PIN_CODE=123456 (avoids random PIN generation)

Also fix boards/t-echo.json:
- add nrfutil to upload protocols list
- add use_1200bps_touch=true and wait_for_upload_port=true
  to enable reliable flashing via PlatformIO upload button
2026-04-20 21:08:08 -07:00

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JSON

{
"build": {
"arduino": {
"ldscript": "nrf52840_s140_v6.ld"
},
"core": "nRF5",
"cpu": "cortex-m4",
"extra_flags": "-DARDUINO_NRF52840_PCA10056 -DNRF52840_XXAA",
"f_cpu": "64000000L",
"hwids": [
[
"0x239A",
"0x8029"
]
],
"usb_product": "NRF52 DK",
"mcu": "nrf52840",
"variant": "pca10056",
"bsp": {
"name": "adafruit"
},
"softdevice": {
"sd_flags": "-DS140",
"sd_name": "s140",
"sd_version": "6.1.1",
"sd_fwid": "0x00B6"
},
"bootloader": {
"settings_addr": "0xFF000"
}
},
"connectivity": [
"bluetooth"
],
"debug": {
"jlink_device": "nRF52840_xxAA",
"onboard_tools": [
"jlink"
],
"svd_path": "nrf52840.svd",
"openocd_target": "nrf52.cfg"
},
"frameworks": [
"arduino"
],
"name": "LilyGo T-ECHO",
"upload": {
"maximum_ram_size": 235520,
"maximum_size": 815104,
"require_upload_port": true,
"speed": 115200,
"protocol": "jlink",
"protocols": [
"jlink",
"nrfjprog",
"nrfutil",
"stlink",
"cmsis-dap",
"blackmagic"
],
"use_1200bps_touch": true,
"wait_for_upload_port": true
},
"url": "https://os.mbed.com/platforms/Nordic-nRF52840-DK/",
"vendor": "Nordic"
}