/* Description: Detect the current OP 90/180 Unit Photoelectric switch status. */ #include void setup() { // put your setup code here, to run once: M5.begin(); M5.Power.begin(); //Wire.begin(); M5.Lcd.setCursor(120, 10, 4); M5.Lcd.println("90/180 OPTICAL"); pinMode(36,INPUT_PULLUP); } void loop() { // put your main code here, to run repeatedly: M5.Lcd.setCursor(80, 120, 4); M5.Lcd.printf("ir receive: %d",digitalRead(36)); }