SunFounder PiCar-4WD, Руководство пользователя, Страница: 69 / 72

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……
elif key == 's' :
……
elif key == 'd' :
……
else :
……
if key == 'q' :
print ( "quit" )
break
if __name__ == '__main__' :
Keyborad_control ()
obstacle_avoidance.py
In the code, the distance measurement radar (ultr servo) will take sample for 11 times in total
(once every 18°). Then it makes judgement on the distance states of the fourth and the seventh sampling.
If radar indicates no obstacle(the returned value is 2), the car will continue moving ahead, or else the car
turn right to get around the obstacle.
Note: Check 「scan_step()」, 「get_status_at()」 in the 「_init_.py」for more details about the judgement
on radar sampling and distance state.
import picar_4wd as fc
speed = 30
def main ():
while True :
scan_list = fc . scan_step ( 35 )
if not scan_list :
continue