I am using Beaglebone Black to run ultrasonic sensor. I am using the
following code.
#!/usr/bin/env python
import BBIO.GPIO as GPIO # Import GPIO library
import time # Import time library
GPIO.setmode(GPIO.BCM) # Set GPIO pin numbering
TRIG = 23 # Associate pin 23 to TRIG
ECHO = 24 # Associate pin 24 to ECHO
print "Distance measurement in progress"
GPIO.setup(TRIG, GPIO.OUT) # Set pin as GPIO out
GPIO.setup(ECHO, GPIO.IN) # Set pin as GPIO in
while True:
GPIO.output(TRIG, False) # Set TRIG as LOW
print "Waitng For Sensor To Settle"
time.sleep(2) # Delay of 2 seconds
GPIO.output(TRIG, True) # Set TRIG as HIGH
time.sleep(0.00001) # Delay of 0.00001 seconds
GPIO.output(TRIG, False) # Set TRIG as LOW
while GPIO.input(ECHO) == 0: # Check whether the ECHO is LOW
pulse_start = time.time() # Saves the last known time of
LOW pulse
while GPIO.input(ECHO) == 1: # Check whether the ECHO is HIGH
pulse_end = time.time() # Saves the last known time of
HIGH pulse
pulse_duration = pulse_end - pulse_start # Get pulse duration to a
variable
distance = pulse_duration * 17150 # Multiply pulse duration by
17150 to get distance
distance = round(distance, 2) # Round to two decimal points
if distance > 2 and distance < 400: # Check whether the distance
is within range
print "Distance:",distance - 0.5,"cm" # Print distance with 0.5 cm
calibration
else:
print "Out Of Range" # display out of range
While I try to implement it using the Beaglebone Black I am getting the
following error.
"Traceback (most recent call last):
File "ult.py", line 5, in <module>
import BBIO.GPIO as GPIO # Import GPIO library
ImportError: No module named BBIO.GPIO"
I need help.
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