def main(argv=sys.argv[1:]):
parser = argparse.ArgumentParser(
description='Distributed lux example, data capture process')
parser.add_argument('-i',
'--interval',
type=float,
default=5.0,
help="Sample interval in seconds")
parser.add_argument(
'-t',
'--threshold',
type=float,
default=25.0,
help="Threshold lux level above which light should be turned on")
parser.add_argument('broker',
metavar="BROKER",
type=str,
help="hostname or ip address of mqtt broker")
parsed_args = parser.parse_args(argv)
(lux, led) = setup(parsed_args.broker, parsed_args.threshold)
scheduler = Scheduler(asyncio.get_event_loop())
stop = scheduler.schedule_periodic_on_separate_thread(
lux, parsed_args.interval)
print("starting run...")
try:
scheduler.run_forever()
except KeyboardInterrupt:
led.on_completed()
stop()
return 0
def test_blocking_output_thing(self):
o = BlockingOutputThing()
o.output()
scheduler = Scheduler(asyncio.get_event_loop())
c = scheduler.schedule_periodic_on_separate_thread(o, 1)
vs = ValidationInputThing([i + 1 for i in range(EVENTS)],
self,
extract_value_fn=lambda v: v)
o.connect(vs)
o.connect(StopLoopAfter(EVENTS, c))
o.print_downstream()
scheduler.run_forever()
print("that's it")
def main(argv=sys.argv[1:]):
if len(argv)!=2:
print("%s threshold interval" % sys.argv[0])
return 1
threshold = float(argv[0])
interval = float(argv[1])
print("%f seconds interval and an led threshold of %f lux" %
(interval, threshold))
(lux, led) = setup(threshold)
scheduler = Scheduler(asyncio.get_event_loop())
stop = scheduler.schedule_periodic_on_separate_thread(lux, interval)
print("starting run...")
try:
scheduler.run_forever()
except KeyboardInterrupt:
led.on_completed()
stop()
return 0
def create_dispatch_rule(sensor_id):
return (lambda evt: evt.sensor_id == sensor_id, sensor_id)
dispatch_rules = [
create_dispatch_rule(remote_id) for remote_id in REMOTE_SENSORS
]
scheduler = Scheduler(asyncio.get_event_loop())
if HAS_LOCAL_SENSOR:
sensor = SensorAsOutputThing(LuxSensor(sensor_id=LOCAL_SENSOR_ID))
sensor.rolling_csv_writer(DIRECTORY, LOCAL_SENSOR_ID)
sensor.output()
scheduler.schedule_periodic_on_separate_thread(sensor, 60)
mqtt_reader = MQTTReader('localhost',
client_id='rpi',
topics=[
('remote-sensors', 0),
])
# we convert the tuple received into a SensorEvent, overwriting the timestamp.
dispatcher = mqtt_reader.map(lambda m:(m.payload).decode("utf-8"))\
.from_json()\
.map(lambda tpl: SensorEvent(sensor_id=tpl[0], ts=time.time(), val=tpl[2]))\
.dispatch(dispatch_rules)
# For each remote sensor, we create a separate csv writer
for remote in REMOTE_SENSORS:
dispatcher.rolling_csv_writer(DIRECTORY, remote, sub_port=remote).output()
dispatcher.connect(lambda x: print("Unexpected sensor %s, full event was %s" %