private GPIOPin pin;
public Button(int pinNo, String name) throws IOException{
this.pinNo = pinNo;
this.name = name;
GPIOPinConfig gpioPinConfig = new GPIOPinConfig(0, pinNo, GPIOPinConfig.DIR_INPUT_ONLY,
PeripheralConfig.DEFAULT, GPIOPinConfig.TRIGGER_RISING_EDGE, false);
pin = PeripheralManager.open(gpioPinConfig);
}