int speed = 0;

void main()
{
	
	start_process(stop());
	
	while(1)
	{
		start_press();
		speed = speed + 5;

		
		printf("speed is %d\n", speed);
	
		motor (0, speed);
		motor (1, speed);
		
		sleep(0.5);
		
		ao();

		if (speed >= 100)
			speed = 0;

	}
}


void stop()
{
	while(1)
	{
		stop_press();
		speed = 95;
	}
}