ＬｏＲａモジュール評価ボード　Ｅ２２０－９００Ｔ２２Ｓ（ＪＰ）－ＥＶ１を使ったLoRa通信受信側 M5AtomLite使用

main.cpp

#include <Arduino.h>
#include <M5Unified.h>

#define LORA_M0_PIN   21
#define LORA_M1_PIN   25
#define LORA_RX_PIN   23
#define LORA_TX_PIN   19

void setLoraMode(int mode) {
  pinMode(LORA_M0_PIN, OUTPUT);
  pinMode(LORA_M1_PIN, OUTPUT);
  digitalWrite(LORA_M0_PIN, mode & 0x1 != 0);
  digitalWrite(LORA_M1_PIN, mode & 0x2 != 0);
}

void setup() {
  M5.begin();
  Serial.begin(115200);
  Serial2.begin(9600, SERIAL_8N1, LORA_RX_PIN, LORA_TX_PIN);
  setLoraMode(0);
  delay(1000);
}

void loop() {
  if (Serial2.available()) {
    int ch = Serial2.read();
    Serial.write(ch);
  }
  delay(10);
}

platformio.ini

[env:m5stack-atom]
platform = espressif32
board = m5stack-atom
framework = arduino
monitor_speed = 115200
lib_deps =
  m5stack/M5Unified@^0.1.4