arduino-esp32/libraries/USB/examples/SystemControl/SystemControl.ino

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#include "USB.h"
#include "USBHIDSystemControl.h"
USBHIDSystemControl SystemControl;
const int buttonPin = 0;
int previousButtonState = HIGH;
void setup() {
pinMode(buttonPin, INPUT_PULLUP);
SystemControl.begin();
USB.begin();
}
void loop() {
int buttonState = digitalRead(buttonPin);
if ((buttonState != previousButtonState) && (buttonState == LOW)) {
SystemControl.press(SYSTEM_CONTROL_POWER_OFF);
SystemControl.release();
}
previousButtonState = buttonState;
}