Created
March 13, 2018 13:06
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| import RPi.GPIO as gpio | |
| import time | |
| try: | |
| # Change to board mode | |
| gpio.setmode(gpio.BCM) | |
| # The sensor is attached to pin 18 and 17 | |
| triggerPin = 17 | |
| echoPin = 18 | |
| gpio.setup(triggerPin, gpio.OUT) | |
| gpio.setup(echoPin, gpio.IN) | |
| while True: | |
| gpio.output(triggerPin, gpio.HIGH) | |
| time.sleep(0.00001) # Wait 10 µs | |
| gpio.output(triggerPin, gpio.LOW) | |
| while not gpio.input(echoPin): | |
| continue | |
| startTime = time.time() | |
| while gpio.input(echoPin): | |
| continue | |
| interval = time.time() - startTime | |
| distance = interval * 17000 | |
| print('Distance: ' + str(distance)) | |
| time.sleep(0.5) | |
| finally: | |
| # Cleanup | |
| gpio.cleanup() |
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