Thinknode M3 support against master (#8630)

* Add variant_shutdown() as a week function in main-nrf52.cpp

* Add Status LED module

* Add Thinknode M3 support

* Catch case of BLE disabled

* Update src/modules/StatusLEDModule.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/modules/StatusLEDModule.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update variants/nrf52840/ELECROW-ThinkNode-M3/rfswitch.h

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Remove unused pin

* M3 pairing LED only active for 30 seconds after state change

* Thinknode M3 shutdown work

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

variants/nrf52840/ELECROW-ThinkNode-M3/variant.h

@@ -0,0 +1,122 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+  Copyright (c) 2016 Sandeep Mistry All right reserved.
+  Copyright (c) 2018, Adafruit Industries (adafruit.com)
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+  This library 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 Lesser General Public License for more details.
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef _VARIANT_ELECROW_EINK_V1_0_
+#define _VARIANT_ELECROW_EINK_V1_0_
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+#include "WVariant.h"
+
+#define VARIANT_MCK (64000000ul)
+#define USE_LFXO // Board uses 32khz crystal for LF
+
+#define ELECROW_ThinkNode_M3 1
+// Number of pins defined in PinDescription array
+#define PINS_COUNT (48)
+#define NUM_DIGITAL_PINS (48)
+#define NUM_ANALOG_INPUTS (1)
+#define NUM_ANALOG_OUTPUTS (0)
+
+// Power Pin
+#define NRF_APM
+#define GPS_POWER 14
+#define PIN_POWER_USB 31
+#define EXT_PWR_DETECT PIN_POWER_USB
+#define PIN_POWER_DONE 24
+#define PIN_POWER_CHRG 32
+#define KEY_POWER 16
+#define ACC_POWER 2
+#define DHT_POWER 3
+#define Battery_POWER 17
+#define RGB_POWER 29
+#define EEPROM_POWER 7
+
+// LED
+#define red_LED_PIN 33
+#define LED_POWER red_LED_PIN
+#define LED_CHARGE LED_POWER // Signals the Status LED Module to handle this LED
+#define green_LED_PIN 35
+#define LED_BLUE 37
+#define LED_PAIRING LED_BLUE // Signals the Status LED Module to handle this LED
+
+#define LED_BUILTIN -1
+#define LED_STATE_ON LOW
+#define LED_STATE_OFF HIGH
+
+// BUZZER
+#define PIN_BUZZER 23
+#define PIN_EN1 36
+#define PIN_EN2 34
+/*Wire Interfaces*/
+#define WIRE_INTERFACES_COUNT 1
+#define PIN_WIRE_SDA 26
+#define PIN_WIRE_SCL 27
+
+// Temperature correction for sensor
+#define AHT10_TEMP_OFFSET -5.0
+
+/*GPS pins*/
+#define HAS_GPS 1
+#define GPS_BAUDRATE 9600
+#define PIN_GPS_RESET 25
+#define PIN_GPS_STANDBY 21
+#define GPS_TX_PIN 20
+#define GPS_RX_PIN 22
+#define GPS_THREAD_INTERVAL 50
+#define PIN_SERIAL1_RX GPS_TX_PIN
+#define PIN_SERIAL1_TX GPS_RX_PIN
+// Button
+#define BUTTON_PIN 12
+#define BUTTON_PIN_ALT (0 + 12)
+// Battery
+#define BATTERY_PIN 5
+#define BATTERY_SENSE_RESOLUTION_BITS 12
+#define BATTERY_SENSE_RESOLUTION 4096.0
+#undef AREF_VOLTAGE
+#define AREF_VOLTAGE 2.4
+#define VBAT_AR_INTERNAL AR_INTERNAL_2_4
+#define ADC_MULTIPLIER (1.75)
+/*SPI Interfaces*/
+#define SPI_INTERFACES_COUNT 1
+#define PIN_SPI_MISO (32 + 15) // P1.15 47
+#define PIN_SPI_MOSI (32 + 14) // P1.14 46
+#define PIN_SPI_SCK (32 + 13)  // P1.13 45
+#define PIN_SPI_NSS (32 + 12)  // P1.12 44
+/*LORA Interfaces*/
+#define USE_LR1110
+#define LR1110_IRQ_PIN 40
+#define LR1110_NRESET_PIN 42
+#define LR1110_BUSY_PIN 43
+#define LR1110_SPI_NSS_PIN 44
+#define LR1110_SPI_SCK_PIN 45
+#define LR1110_SPI_MOSI_PIN 46
+#define LR1110_SPI_MISO_PIN 47
+#define LR11X0_DIO3_TCXO_VOLTAGE 3.3
+#define LR11X0_DIO_AS_RF_SWITCH
+
+// PCF8563 RTC Module
+#define PCF8563_RTC 0x51
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif