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Update ThinkNode M1 target to match datasheet

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- only two leds, red and blue
 - fix pin definition and polarity for leds
 - remove unmapped pins
 - swap buttons, so they match datasheet and marking on buttons
This commit is contained in:
jakobmn
2026-04-18 15:47:15 +02:00
parent d2cec84100
commit 5d0b66bc4f
3 changed files with 20 additions and 32 deletions
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zephcore/boards/nrf52840/thinknode_m1/board.conf
+1 -1
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@@ -6,7 +6,7 @@
# - GPS module on UART0, MX25R1635F 2MB QSPI flash
# - Battery ADC on AIN2 (P0.04), 150K+150K divider
# - Buzzer on P0.06, two buttons, GPS hardware switch
# - LEDs: GREEN=P1.04, BLUE=P0.14
# - LEDs: RED=P1.04, BLUE=P0.13
# Board identification (matches Arduino MeshCore variant name)
CONFIG_ZEPHCORE_BOARD_NAME="ThinkNode M1"
zephcore/boards/nrf52840/thinknode_m1/thinknode_m1-pinctrl.dtsi
+4 -6
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@@ -7,8 +7,7 @@
* Pin mappings (from Arduino MeshCore variant.h):
*
* SPI2 (LoRa SX1262): SCK=P0.19, MISO=P0.23, MOSI=P0.22, CS=P0.24
* SPI3 (EPD SSD1681): SCK=P0.31, MISO=P1.06, MOSI=P0.29
* (MISO shared with LED_RED — unused by write-only EPD)
* SPI3 (EPD SSD1681): SCK=P0.31, MISO=NC, MOSI=P0.29
* I2C0 (RTC/sensors): SDA=P0.26, SCL=P0.27
* UART0 (GPS 9600): TX=P1.08 (→GPS RX), RX=P1.09 (←GPS TX)
* PWM0 (buzzer): P0.06
@@ -71,13 +70,12 @@
};
/* SPI3 for E-Paper display SSD1681
* MISO on P1.06 is shared with LED_RED — e-ink is write-only so
* MISO is never driven, but nRF SPIM requires all three pins. */
* Display MISO is not connected on ThinkNode M1. */
spi3_default: spi3_default {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 0, 31)>, /* P0.31 */
<NRF_PSEL(SPIM_MOSI, 0, 29)>, /* P0.29 */
<NRF_PSEL(SPIM_MISO, 1, 6)>; /* P1.06 (shared LED_RED) */
<NRF_PSEL_DISCONNECTED(SPIM_MISO)>;
};
};
@@ -85,7 +83,7 @@
group1 {
psels = <NRF_PSEL(SPIM_SCK, 0, 31)>,
<NRF_PSEL(SPIM_MOSI, 0, 29)>,
<NRF_PSEL(SPIM_MISO, 1, 6)>;
<NRF_PSEL_DISCONNECTED(SPIM_MISO)>;
low-power-enable;
};
};
zephcore/boards/nrf52840/thinknode_m1/thinknode_m1.dts
+15 -25
View File
@@ -12,12 +12,11 @@
* - GPS module on UART0 (9600 baud, multi-constellation)
* - 1200 mAh battery with ADC on AIN2 (150K+150K divider)
* - Buzzer on PWM0, user button (P1.10), page button (P1.07), GPS hardware switch
* - LEDs: GREEN=P1.04, BLUE=P0.14 (RED=P1.06 shared with display SPI)
* - LEDs: RED=P1.04, BLUE=P0.13
*
* Pin conflicts (shared by hardware design):
* - P1.06: LED_RED + display SPI MISO (EPD is write-only, MISO unused)
* - P1.05: LoRa power enable + GPS reset (shared power rail)
* - P1.04: LED_GREEN + GPS PPS (GPS PPS blinks the green LED)
* Not connected on this target:
* - Display SPI MISO
* - GPS PPS
*/
/dts-v1/;
@@ -43,54 +42,45 @@
aliases {
lora0 = &lora;
led0 = &led_green;
led0 = &led_red;
led1 = &led_blue;
led2 = &lora_tx_led;
lora-tx-led = &lora_tx_led;
lora-tx-led = &led_blue;
sw0 = &user_button;
watchdog0 = &wdt0;
buzzer = &buzzer;
gps-enable = &gps_enable_pin;
};
/* ---- LEDs (active-low) ---- */
/* ---- LEDs (active-high, matches MeshCore LED_STATE_ON=HIGH) ---- */
leds {
compatible = "gpio-leds";
led_green: led_0 {
gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
label = "Green LED";
led_red: led_0 {
gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>;
label = "Red LED";
};
led_blue: led_1 {
gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
label = "Blue LED";
};
/* LoRa TX activity LED (active-high, matches Arduino P_LORA_TX_LED) */
lora_tx_led: led_2 {
gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
label = "TX LED";
};
/* LED_RED (P1.06) omitted — shared with display SPI MISO */
};
/* ---- Buttons ---- */
buttons: buttons {
compatible = "gpio-keys";
/* Action / enter button (P1.10) — KEY_ENTER direct, no filter.
/* Action / enter button (P1.07) — KEY_ENTER direct, no filter.
* action_page_enter() handles double-press confirmation internally. */
user_button: button_0 {
gpios = <&gpio1 10 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
gpios = <&gpio1 7 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
zephyr,code = <INPUT_KEY_ENTER>;
label = "User Button";
};
/* Page turn button (P1.07) — raw KEY_0, consumed by multi-tap below.
* (P1.07 is shared with SPI1 MISO — safe because EPD is write-only.) */
/* Page turn button (P1.10) — raw KEY_0, consumed by multi-tap below. */
page_button: button_1 {
gpios = <&gpio1 7 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
gpios = <&gpio1 10 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
zephyr,code = <INPUT_KEY_0>;
label = "Page Button";
};