-
Notifications
You must be signed in to change notification settings - Fork 10
/
ultra.py
35 lines (28 loc) · 837 Bytes
/
ultra.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
import RPi.GPIO as GPIO # import GPIO librery
import time
def ultra():
GPIO.setmode(GPIO.BOARD)
trig=33
echo=31
#ultrasonic sensor setting
GPIO.setup(trig,GPIO.OUT)
GPIO.setup(echo,GPIO.IN)
try:
while True:
GPIO.output(trig,False)
time.sleep(0.5)
GPIO.output(trig,True)
time.sleep(0.00001)
GPIO.output(trig,False)
while GPIO.input(echo)==0:
pulse_start=time.time()
while GPIO.input(echo)==1:
pulse_end=time.time()
pulse_duration=pulse_end-pulse_start
distance=pulse_duration*17000
distance=round(distance,2)
print(distance)
except KeyboardInterrupt:
GPIO.cleanup()
#if __name__=="__main__":
# ultra()