def main():
sfm = find_sensor_by_type('sfm3000')
sdp = find_sensor_by_type('sdp600')
sht = find_sensor_by_type('sht3x')
if not all((sfm, sdp, sht)):
sys.stderr.writelines("couldn't find all sensors\n")
return
def print_sensor_values(sensor_name):
def print_to_console(timestamp, values):
print "{0}: {1}".format(sensor_name, values.values()[0])
return True
return print_to_console
try:
sfm_reader = SensorReader((sfm,), 100, print_sensor_values('sfm'))
sdp_reader = SensorReader((sdp,), 10, print_sensor_values('sdp'))
sht_reader = SensorReader((sht,), 1, print_sensor_values('sht'))
sfm_reader.start()
sdp_reader.start()
sht_reader.run()
finally:
sfm_reader.join()
sdp_reader.join()
def main():
sfm = find_sensor_by_type('sfm3000')
sdp = find_sensor_by_type('sdp600')
sht = find_sensor_by_type('sht3x')
if not all((sfm, sdp, sht)):
sys.stderr.writelines("couldn't find all sensors\n")
return
def print_sensor_values(sensor_name):
def print_to_console(timestamp, values):
print "{0}: {1}".format(sensor_name, values.values()[0])
return True
return print_to_console
try:
sfm_reader = SensorReader((sfm, ), 100, print_sensor_values('sfm'))
sdp_reader = SensorReader((sdp, ), 10, print_sensor_values('sdp'))
sht_reader = SensorReader((sht, ), 1, print_sensor_values('sht'))
sfm_reader.start()
sdp_reader.start()
sht_reader.run()
finally:
sfm_reader.join()
sdp_reader.join()
def main():
print('detecting sensors')
sfm = find_sensor_by_type('sfm3000')
sdp = find_sensor_by_type('sdp600')
sht = find_sensor_by_type('sht3x')
if not any((sfm, sdp, sht)):
sys.stderr.writelines("couldn't find any sensors\n")
return
print('connecting to mqtt')
client = mqtt.Client()
client.on_connect = on_connect
client.connect("localhost")
def send_sensor_values(sensor, sensor_name):
topic = 'sensors/{0}/{1}/values'.format(socket.gethostname(), sensor_name)
units = sensor.get_units()
def send(timestamp, values):
measurements = values.values()[0]
if all(m is not None for m in measurements):
payload = {
"timestamp": timestamp,
"values": measurements,
"units": units,
}
client.publish(topic, json.dumps(payload))
return send
def signal_handler(signal, frame):
print('terminating')
client.disconnect()
signal.signal(signal.SIGINT, signal_handler)
try:
if sfm:
sfm_reader = SensorReader((sfm,), 100, send_sensor_values(sfm, 'sfm'))
sfm_reader.start()
if sdp:
sdp_reader = SensorReader((sdp,), 10, send_sensor_values(sdp, 'sdp'))
sdp_reader.start()
if sht:
sht_reader = SensorReader((sht,), 1, send_sensor_values(sht, 'sht'))
sht_reader.start()
client.loop_forever()
finally:
client.loop_stop()
if sfm:
sfm_reader.join()
if sdp:
sdp_reader.join()
if sht:
sht_reader.join()
def readSensor():
shtObj = find_sensor_by_type('sht3x')
if not shtObj:
return -1
def reportSensorValues(sensorName):
def sensorValue(timestamp, values):
global value
if sys.version_info >= (3, 0):
value = list(values.values())[0]
else:
value = values.values()[0]
sensorObj.stop()
return sensorValue
try:
sensorObj = SensorReader((shtObj, ), 1, reportSensorValues('shtObj'))
sensorObj.start()
finally:
sensorObj.join()
return 0
def main():
print('detecting sensors')
sdp = find_sensor_by_type('sdp600')
if not sdp:
sys.stderr.writelines("couldn't find any sensors\n")
return
print('connecting to mqtt')
client = mqtt.Client()
client.on_connect = on_connect
client.connect("139.59.172.240", 1884)
print('connected')
def send_sensor_values(sensor, sensor_name):
def send(timestamp, values):
global lst, counter
measurements = values.values()[0]
if all(m is not None for m in measurements):
val = measurements[0]
lst.append(val)
print(counter)
if counter == 6:
val = sum(lst) / len(lst)
payload = {
"id": str(uuid.uuid4()),
"createdAt": time.time(),
"ip": "piSerial#",
"ok": "true",
"sensor": "Sdp610",
"val": val
}
print(payload)
client.publish('Sdp610', json.dumps(payload))
lst = []
counter = 0
counter += 1
return send
def signal_handler(signal, frame):
print('terminating')
client.disconnect()
signal.signal(signal.SIGINT, signal_handler)
try:
if sdp:
lst = []
counter = 0
sdp_reader = SensorReader((sdp, ), (1),
send_sensor_values(sdp, 'sdp'))
sdp_reader.start()
client.loop_forever()
finally:
client.loop_stop()
if sdp:
sdp_reader.join()
