def read(self):
'''
Limit the ultrasonic sensor to a distance of 5m.
Take 3 readings, discard any that's higher than 5m
If we discard 5 times, then assume there's nothing in front
and return 501
'''
return_reading = 0
readings =[]
skip = 0
while len(readings) < 3:
_wait_for_read()
_grab_read()
value = gopigo.corrected_us_dist(PORTS[self.port])
_release_read()
if value < 501 and value > 0:
readings.append(value)
else:
skip +=1
if skip > 5:
break
if skip > 5:
return(501)
for reading in readings:
return_reading += reading
return_reading = int(return_reading // len(readings))
return (return_reading)
def read(self):
'''
Limit the ultrasonic sensor to a distance of 5m.
Take 3 readings, discard any that's higher than 3m
If we discard 5 times, then assume there's nothing in front
and return 501
'''
return_reading = 0
readings = []
skip = 0
while len(readings) < 3:
_grab_read()
try:
value = gopigo.corrected_us_dist(PORTS[self.port])
except Exception as e:
print("UltraSonicSensor read(): {}".format(e))
pass
_release_read()
if value < 300 and value > 0:
readings.append(value)
else:
skip += 1
if skip > 5:
break
time.sleep(0.05)
if skip > 5:
return (501)
for reading in readings:
return_reading += reading
return_reading = int(return_reading // len(readings))
return (return_reading)
def read(self):
'''
Limit the ultrasonic sensor to a distance of 5m.
Take 3 readings, discard any that's higher than 5m
If we discard 5 times, then assume there's nothing in front
and return 501
'''
return_reading = 0
readings = []
skip = 0
while len(readings) < 3:
_wait_for_read()
_grab_read()
value = gopigo.corrected_us_dist(PORTS[self.port])
_release_read()
if value < 501 and value > 0:
readings.append(value)
else:
skip += 1
if skip > 5:
break
if skip > 5:
return (501)
for reading in readings:
return_reading += reading
return_reading = int(return_reading // len(readings))
return (return_reading)
def read(self):
'''
Limit the ultrasonic sensor to a distance of 5m.
Take 3 readings, discard any that's higher than 3m
If we discard 5 times, then assume there's nothing in front
and return 501
'''
return_reading = 0
readings =[]
skip = 0
while len(readings) < 3:
_ifMutexAcquire(self.use_mutex)
try:
value = gopigo.corrected_us_dist(PORTS[self.port])
except Exception as e:
print("UltraSonicSensor read(): {}".format(e))
pass
finally:
_ifMutexRelease(self.use_mutex)
if value < 300 and value > 0:
readings.append(value)
else:
skip +=1
if skip > 5:
break
time.sleep(0.05)
if skip > 5:
return(501)
for reading in readings:
return_reading += reading
return_reading = int(return_reading // len(readings))
return (return_reading)
