m4: inital port

variants/thinknode_m4/ThinkNodeM4Board.h

@@ -0,0 +1,61 @@
+#pragma once
+
+#include <Arduino.h>
+#include <MeshCore.h>
+#include <helpers/NRF52Board.h>
+
+class ThinkNodeM4Board : public NRF52BoardDCDC {
+protected:
+#if NRF52_POWER_MANAGEMENT
+  void initiateShutdown(uint8_t reason) override;
+#endif
+  uint8_t btn_prev_state;
+  HardwareSerial * battery_serial;
+  uint16_t bat_level_mv = 0;
+  uint8_t bat_level_percent =0;
+
+public:
+  ThinkNodeM4Board() : NRF52Board("THINKNODE_M3_OTA"), battery_serial(&Serial2) {}
+  void begin();
+  uint16_t getBattMilliVolts() override;
+
+#ifdef P_LORA_TX_LED
+  void onBeforeTransmit() override {
+    digitalWrite(P_LORA_TX_LED, LED_STATE_ON);  // turn TX LED on
+  }
+  void onAfterTransmit() override {
+    digitalWrite(P_LORA_TX_LED, !LED_STATE_ON); // turn TX LED off
+  }
+#endif
+
+  const char* getManufacturerName() const override {
+    return "Elecrow ThinkNode M4";
+  }
+
+  int buttonStateChanged() {
+  #ifdef BUTTON_PIN
+    uint8_t v = digitalRead(BUTTON_PIN);
+    if (v != btn_prev_state) {
+      btn_prev_state = v;
+      return (v == USER_BTN_PRESSED) ? 1 : -1;
+    }
+  #endif
+    return 0;
+  }
+
+  void shutdownPeripherals() override {
+    // shutdown common peripherals
+    NRF52Board::shutdownPeripherals();
+
+    digitalWrite(LED_BAT1, LOW);
+    digitalWrite(LED_BAT2, LOW);
+    digitalWrite(LED_BAT3, LOW);
+    digitalWrite(LED_BAT4, LOW);
+    digitalWrite(LED_STATUS, LOW);
+    digitalWrite(LED_PIN, LOW);
+
+    digitalWrite(PIN_PWR_EN, LOW);
+    digitalWrite(I2C_POWER, !I2C_POWER_ACTIVE);
+    digitalWrite(PIN_GPS_POWER, !GPS_POWER_ACTIVE);
+  }
+};