def process_direction(self, sensor: DistanceSensor, floor: float,
db_field: str):
'''
When a sensor is tripped, detremines if the person went all the way through, or
turned back before tripping the second sensor.
Note:
There is an allotted time to trip the second sensor before it times out and
"thinks" the person has turned back.
'''
print('tripped')
date = utils.iso_date(
) # iso 8601 format (yyyy-mm-dd) because we're not savages
start_time = utils.unix_time() # used for timeout
while utils.unix_time(
) < start_time + self.timeout: # poll the sensors until timeout
if sensor.distance < floor:
print('adding to db')
self.db.increment(db_field, date)
sensor.wait_for_out_of_range()
return
sleep(0.001)
from gpiozero import DistanceSensor
from time import sleep
ultrasonic = DistanceSensor(echo=19, trigger=6)
while True:
print("Y")
ultrasonic.wait_for_in_range()
print("In range")
ultrasonic.wait_for_out_of_range()
print("Out of range")
#print("T")
#ultrasonic.wait_for_in_range()
#print("In range")
#ultrasonic.wait_for_out_of_range()
#print("Out of range")
#sleep(1)
#print(ultrasonic.distance)
from gpiozero import DistanceSensor
us = DistanceSensor(echo = 17, trigger = 4)
while True:
us.wait_for_in_range()
print(us.distance)
us.wait_for_out_of_range()
print('Out of range')
#!/usr/bin/env python3
import move
import signal
from gpiozero import DistanceSensor
min_distance = 0.15
sonic_sensor = DistanceSensor(
echo=18, trigger=17, threshold_distance=min_distance)
speed = 0.5
def exit_gracefully():
exit()
sonic_sensor.when_in_range = lambda: move.stop()
sonic_sensor.when_out_of_range = lambda: move.forward()
signal.signal(signal.SIGINT, exit_gracefully)
move.forward(speed)
while True:
sonic_sensor.wait_for_in_range()
move.backward(speed)
sonic_sensor.wait_for_out_of_range()
move.right(speed, 0.75)
exit_gracefully()
