ESP32_OSC_IMU/lib/M5Stack/examples/Basics/PowerOFF/PowerOFF.ino

#include <M5Stack.h>

// the setup routine runs once when M5Stack starts up
void setup(){

  // initialize the M5Stack object
  M5.begin();
  
  /*
    Power chip connected to gpio21, gpio22, I2C device
    Set battery charging voltage and current
    If used battery, please call this function in your project
  */
  M5.Power.begin();

  // Lcd display
  M5.Lcd.setTextSize(2);
  M5.Lcd.println("Software Power-OFF Demo");
  M5.Lcd.println("Press Button A ...");
}

// the loop routine runs over and over again forever
void loop() {

  if(M5.BtnA.wasPressed()) {
    M5.Power.powerOFF();
  }

  M5.update();
}