#include <M5Stack.h>

#define PIN_SW 2


void setup() {
  M5.begin();
  M5.Lcd.fillScreen(BLACK);

  pinMode(PIN_SW, INPUT_PULLUP);
}

void loop() {
  M5.update();

  M5.Lcd.setCursor(10, 30);
  M5.Lcd.setTextSize(10);
  if(digitalRead(PIN_SW) == LOW) {
    M5.Lcd.println("ON  ");
  } else {
    M5.Lcd.println("OFF ");
  }
  delay(500);
}