void delay(long milli) {
		unsigned long last = millis();
	  while (milli > 0) {
	    unsigned long now = millis();
	    milli -= now - last;
	    last = now;
	    update();
	  }
	}

	void moveX(char deltaX)	{
		if (deltaX == -128) deltaX = -127;
		last_built_report[1] = *(reinterpret_cast<unsigned char *>(&deltaX));
	}

	void moveY(char deltaY) {
		if (deltaY == -128) deltaY = -127;
		last_built_report[2] = *(reinterpret_cast<unsigned char *>(&deltaY));
	}

	void scroll(char deltaS)	{
		if (deltaS == -128) deltaS = -127;
		last_built_report[3] = *(reinterpret_cast<unsigned char *>(&deltaS));
	}

	void move(char deltaX, char deltaY, char deltaS) {
		if (deltaX == -128) deltaX = -127;
		if (deltaY == -128) deltaY = -127;
		if (deltaS == -128) deltaS = -127;
		last_built_report[1] = *(reinterpret_cast<unsigned char *>(&deltaX));
		last_built_report[2] = *(reinterpret_cast<unsigned char *>(&deltaY));
		last_built_report[3] = *(reinterpret_cast<unsigned char *>(&deltaS));
	}

	void setButtons(unsigned char buttons) {
		last_built_report[0] = buttons;
	}

	void setValues(unsigned char values[]) {
		memcpy(last_built_report, values, REPORT_SIZE);
	}