M5StickC_Serial1-2Test_Koki_Jikken4

M5StickC_Serial1-2_JIkken4-EXT-Grove_Seial1-2_COM4.ino

//M5StickC_Serial1-2_JIkken4-EXT-Grove_Seial1-2_COM4.ino
#include <M5StickC.h>
int i;
// COM5＝＞COM4=>COM5 LoopBack
void setup() {
  M5.begin();
  
  Serial1.begin(115200, SERIAL_8N1,0,26); // RX06 TX26 EXT_IO
  Serial2.begin(115200, SERIAL_8N1, 33, 32);// RX32 TX33 Grove
}

void loop() {
   
  //COM5からGrove-Serial2受信する
  if (Serial2.available()) {
    int inByte = Serial2.read();
    Serial.print("Grove-Serial2_Receive from COM5:");
    Serial.println(inByte);
    //EXT-Serial1からCOM5へ返信
    Serial1.write(inByte);
  }
}