def on_echo(self, _, level, tick):
if level == 2:
pigpio.gpio_trigger(self.GPIO_TRIGGER)
if level == 1:
self.tick_up = tick
elif level == 0:
delta = pigpio.tickDiff(self.tick_up, tick)
self.update_distance(delta * 0.017)
def read(self):
"""
Triggers a reading. The returned reading is the number
of microseconds for the sonar round-trip.
round trip cms = round trip time / 1000000.0 * 34030
"""
if self._inited:
self._ping = False
pigpio.gpio_trigger(self._trig)
while not self._ping:
time.sleep(0.001)
return self._time
else:
return None
def t6():
global t6_count, t6_on
print("Trigger tests.")
pigpio.write(GPIO, pigpio.LOW)
tp = 0
t6cb = pigpio.callback(GPIO, pigpio.EITHER_EDGE, t6cbf)
for t in range(5):
time.sleep(0.1)
p = 10 + (t * 10)
tp += p
pigpio.gpio_trigger(GPIO, p, 1)
time.sleep(0.5)
CHECK(6, 1, t6_count, 5, 0, "gpio trigger count")
CHECK(6, 2, t6_on, tp, 25, "gpio trigger pulse length")
def t6():
global t6_count, t6_on
print("Trigger tests.")
pigpio.write(GPIO, pigpio.LOW)
tp = 0
t6cb = pigpio.callback(GPIO, pigpio.EITHER_EDGE, t6cbf)
for t in range(10):
time.sleep(0.1)
p = 10 + (t*10)
tp += p;
pigpio.gpio_trigger(4, p, 1)
time.sleep(0.5)
CHECK(6, 1, t6_count, 10, 0, "gpio trigger count")
CHECK(6, 2, t6_on, tp, 25, "gpio trigger pulse length")