M5StickC_Serial1-2_JIkken2_COM5

M5StickC_Serial1-2_JIkken2_COM5.ino

//M5StickC_Serial1-2_JIkken2_COM5.ino
#include <M5StickC.h>
int i;

void setup() {
  M5.begin();
 Serial.begin(115200);
 Serial1.begin(115200, SERIAL_8N1, 26, 0); // RX26 TX0 EXT_IO
 Serial2.begin(115200, SERIAL_8N1, 33, 32);// RX33 TX32 Grove
}

void loop() {
   i++;
   //COm4へ送信
   Serial2.write(i);
   delay(10);
  
  //COM4から返信をSerial1で受信する
  if (Serial1.available()) {
    // Serial2(Grove) to Serial(PC)
    int inByte = Serial1.read();
    Serial.print("Serial1_Receive from COM4:");
    Serial.println(inByte);
  }
}