Preliminary Thinknode M4 Support (#8754)

* Preliminary Thinknode M4 Support * oops * Fix RF switch TX configuration * trunk'd * GPS fix for M4 * Battery handling and LED for M4 * Trunk * Drop debug warnings * Make Red LED notification * Merge cleanup * Make white LEDs flash during charge --------- Co-authored-by: Jonathan Bennett <jbennett@incomsystems.biz>
2026-01-20 00:37:36 +00:00 · 2026-01-15 04:36:53 +01:00
parent a6a80b067f
commit 233e6acc85
14 changed files with 475 additions and 15 deletions
--- a/variants/nrf52840/ELECROW-ThinkNode-M4/platformio.ini
+++ b/variants/nrf52840/ELECROW-ThinkNode-M4/platformio.ini
@@ -0,0 +1,15 @@
+; ThinkNode M4 - Powerbank nrf52840/LR1110 by Elecrow
+[env:thinknode_m4]
+extends = nrf52840_base
+board = ThinkNode-M4
+board_check = true
+debug_tool = jlink
+
+build_flags = ${nrf52840_base.build_flags}
+  -Ivariants/nrf52840/ELECROW-ThinkNode-M4
+  -DELECROW_ThinkNode_M4
+
+build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/ELECROW-ThinkNode-M4>
+lib_deps =
+  ${nrf52840_base.lib_deps}
+  lewisxhe/PCF8563_Library@^1.0.1
--- a/variants/nrf52840/ELECROW-ThinkNode-M4/rfswitch.h
+++ b/variants/nrf52840/ELECROW-ThinkNode-M4/rfswitch.h
@@ -0,0 +1,11 @@
+#include "RadioLib.h"
+
+static const uint32_t rfswitch_dio_pins[] = {RADIOLIB_LR11X0_DIO5, RADIOLIB_LR11X0_DIO6, RADIOLIB_NC, RADIOLIB_NC, RADIOLIB_NC};
+
+static const Module::RfSwitchMode_t rfswitch_table[] = {
+    // mode                  DIO5  DIO6
+    {LR11x0::MODE_STBY, {LOW, LOW}},  {LR11x0::MODE_RX, {HIGH, LOW}},
+    {LR11x0::MODE_TX, {HIGH, HIGH}},  {LR11x0::MODE_TX_HP, {LOW, HIGH}},
+    {LR11x0::MODE_TX_HF, {LOW, LOW}}, {LR11x0::MODE_GNSS, {LOW, LOW}},
+    {LR11x0::MODE_WIFI, {LOW, LOW}},  END_OF_MODE_TABLE,
+};
--- a/variants/nrf52840/ELECROW-ThinkNode-M4/variant.cpp
+++ b/variants/nrf52840/ELECROW-ThinkNode-M4/variant.cpp
@@ -0,0 +1,51 @@
+/*
+  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
+*/
+
+#include "variant.h"
+#include "nrf.h"
+#include "wiring_constants.h"
+#include "wiring_digital.h"
+
+const uint32_t g_ADigitalPinMap[] = {
+    // P0 - pins 0 and 1 are hardwired for xtal and should never be enabled
+    0xff, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+
+    // P1
+    32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
+
+void initVariant()
+{
+    pinMode(PIN_LED2, OUTPUT);
+    ledOff(PIN_LED2);
+
+    pinMode(LED_PAIRING, OUTPUT);
+    ledOff(LED_PAIRING);
+
+    pinMode(Battery_LED_1, OUTPUT);
+    ledOff(Battery_LED_1);
+    pinMode(Battery_LED_2, OUTPUT);
+    ledOff(Battery_LED_2);
+
+    pinMode(Battery_LED_3, OUTPUT);
+    ledOff(Battery_LED_3);
+
+    pinMode(Battery_LED_4, OUTPUT);
+    ledOff(Battery_LED_4);
+}
--- a/variants/nrf52840/ELECROW-ThinkNode-M4/variant.h
+++ b/variants/nrf52840/ELECROW-ThinkNode-M4/variant.h
@@ -0,0 +1,142 @@
+/*
+ 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_THINKNODE_M4_
+#define _VARIANT_ELECROW_THINKNODE_M4_
+
+/** Master clock frequency */
+#define VARIANT_MCK (64000000ul)
+
+#define USE_LFXO
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+#define PINS_COUNT (48)
+#define NUM_DIGITAL_PINS (48)
+#define NUM_ANALOG_INPUTS (1)
+#define NUM_ANALOG_OUTPUTS (0)
+
+// LEDs
+#define LED_BUILTIN -1
+#define LED_BLUE -1
+#define PIN_LED2 (32 + 9)
+#define LED_PAIRING (13)
+
+#define Battery_LED_1 (15)
+#define Battery_LED_2 (17)
+#define Battery_LED_3 (32 + 2)
+#define Battery_LED_4 (32 + 4)
+
+#define LED_STATE_ON 1
+
+// Button
+#define PIN_BUTTON1 (4)
+
+// Battery ADC
+#define PIN_A0 (2)
+#define BATTERY_PIN PIN_A0
+#define BATTERY_SENSE_SAMPLES 30
+#define ADC_RESOLUTION 14
+#define BATTERY_SENSE_RESOLUTION_BITS 12
+#define BATTERY_SENSE_RESOLUTION 4096.0
+#define ADC_MULTIPLIER (2.00F)
+#undef AREF_VOLTAGE
+#define AREF_VOLTAGE 3.0
+#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
+
+#define HAS_SERIAL_BATTERY_LEVEL 1
+#define SERIAL_BATTERY_RX 30
+#define SERIAL_BATTERY_TX 5
+
+static const uint8_t A0 = PIN_A0;
+
+#define PIN_NFC1 (9)
+#define PIN_NFC2 (10)
+
+// I2C
+#define WIRE_INTERFACES_COUNT 1
+#define PIN_WIRE_SDA (23)
+#define PIN_WIRE_SCL (25)
+
+// actually the LORA Radio
+#define PIN_POWER_EN (11)
+
+// charger status
+#define EXT_CHRG_DETECT (32 + 6)
+#define EXT_CHRG_DETECT_VALUE HIGH
+
+// SPI
+#define SPI_INTERFACES_COUNT 1
+#define PIN_SPI_MISO (8)
+#define PIN_SPI_MOSI (7)
+#define PIN_SPI_SCK (6)
+
+#define LORA_RESET (32 + 8)
+#define LORA_DIO1 (12)
+#define LORA_DIO2 (26)
+#define LORA_SCK PIN_SPI_SCK
+#define LORA_MISO PIN_SPI_MISO
+#define LORA_MOSI PIN_SPI_MOSI
+#define LORA_CS (27)
+
+#define USE_LR1110
+#define LR1110_IRQ_PIN LORA_DIO1
+#define LR1110_NRESET_PIN LORA_RESET
+#define LR1110_BUSY_PIN LORA_DIO2
+#define LR1110_SPI_NSS_PIN LORA_CS
+#define LR1110_SPI_SCK_PIN LORA_SCK
+#define LR1110_SPI_MOSI_PIN LORA_MOSI
+#define LR1110_SPI_MISO_PIN LORA_MISO
+
+#define LR11X0_DIO3_TCXO_VOLTAGE 1.6
+#define LR11X0_DIO_AS_RF_SWITCH
+
+// Peripherals on I2C bus. Active Low
+#define VEXT_ENABLE (32)
+#define VEXT_ON_VALUE LOW
+
+// GPS L76K
+#define HAS_GPS 1
+#define GPS_L76K
+#define GPS_BAUDRATE 9600
+#define PIN_GPS_EN (32 + 11)
+#define GPS_EN_ACTIVE LOW
+#define PIN_GPS_RESET (3)
+#define GPS_RESET_MODE HIGH
+#define PIN_GPS_STANDBY (28)
+#define GPS_STANDBY_ACTIVE HIGH
+#define GPS_TX_PIN (32 + 12)
+#define GPS_RX_PIN (32 + 14)
+#define GPS_THREAD_INTERVAL 50
+
+#define PIN_SERIAL1_RX GPS_RX_PIN
+#define PIN_SERIAL1_TX GPS_TX_PIN
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif