> 3.when press keyboard"p", the car pause and stop moving
> 4.when press keyboard"t", PC can get the temperature now; when press keyboard"d", PC will show the distance the car has run; when press keyboard"r", PC show the time car moves
> 4.when press keyboard"t", PC can get the temperature now; when press keyboard"d", PC will show the distance the car has run; when press keyboard"r", PC show the time car moves
**this three keyboard can be press whenever the car is moving or stop, distance and runtime suppose not being bigger when car is stop**
> 5.when the car is moving, press the right or left force sensor, then the car should turn right or left
