/**
		Digital ports pins:
			@param A_pin - A button (D0).
			@param B_pin - B button (D1).
			@param C_pin - C button (D2).
			@param D_pin - D button (D3).
	*/
	YK04_Module* yk04 = new YK04_Module(A_PIN, B_PIN, C_PIN, D_PIN);

	/**
		If you want to invert a sensor signal:
		INVERT_SIGNAL:
			true - invert a signal;
			false - not invert a signal.
	*/
	YK04_Module* yk04 = new YK04_Module(A_PIN, B_PIN, C_PIN, D_PIN, INVERT_SIGNAL);

	/**
		Single reading of the remote control.
		If the remote control is clamped,
		value of the next pressing - NOT.
		Return value of pressing the remote control:
			Button::A - A button is pressed;
			Button::B - B button is pressed;
			Button::C - C button is pressed;
			Button::D - D button is pressed;
			Button::NOT - not pressed.
	*/
	yk04->singleRead();

	/**
		Multiple reading of the remote control.
		If the remote control is clamped,
		returns a pressed button value.
		Return value of pressing the remote control:
			Button::A - A button is pressed;
			Button::B - B button is pressed;
			Button::C - C button is pressed;
			Button::D - D button is pressed;
			Button::NOT - not pressed.
	*/
	yk04->multipleRead();

	/**
		Checks if the A button is pressed.
		Return true - button is pressed,
		false - button is not pressed.
	*/
	yk04->isA();

	/**
		Checks if the B button is pressed.
		Return true - button is pressed,
		false - button is not pressed.
	*/
	yk04->isB();

	/**
		Checks if the C button is pressed.
		Return true - button is pressed,
		false - button is not pressed.
	*/
	yk04->isC();

	/**
		Checks if the D button is pressed.
		Return true - button is pressed,
		false - button is not pressed.
	*/
	yk04->isD();