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M5StackBasic Serial1 GPIO Test RX2 TX5
//HardwareSerial Serial2(2);//これは不要でいれるとエラーになる
#include <M5Stack.h>
void setup() {
// initialize both serial ports:
//Serial.begin(115200);
M5.begin();//この中でSerial(USB Serial)の115200宣言含む
//Serial2.begin(115200);
Serial1.begin(115200, SERIAL_8N1,2, 5);//GPIO2:RX ,GPIO5:TX
}
void loop() {
// read from port 1, send to port 0:
if (Serial1.available()) {
int inByte = Serial1.read();
Serial.print("Recieved=");
Serial.println(inByte);
}
// read from port 0, send to port 1:
if (Serial.available()) {
int inByte = Serial.read();
Serial.print("KeyIn=");
Serial.println(inByte);
Serial1.write(inByte);
}
}
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