def run():
sleep(4)
show_default()
c = MQTTClient('ledkrant',
mqtt_server["ip"],
user=mqtt_server["user"],
password=mqtt_server["password"])
c.DEBUG = True
c.set_callback(sub_callback)
c.connect()
c.subscribe(b"ledkrant/write")
c.subscribe(b"ledkrant/time")
c.subscribe(b"ledkrant/brightness")
c.subscribe(b"ledkrant/reset")
c.subscribe(b"ledkrant/color")
c.subscribe(b"ledkrant/textcolor")
c.subscribe(b"ledkrant/party")
c.subscribe(b"ledkrant/setxy")
while 1:
c.wait_msg()
c.disconnect()
class MQTTWriter:
__slots__ = ('client')
def __init__(self, id='1', server='io.adafruit.com', user='******', password = '******', port=1883):
self.client = MQTTClient(
client_id=id,
server=server,
user=user,
password='******',
port=port
)
self._connect()
def _connect(self):
print("Connecting....."))
self.client.connect()
print("Connection successful")
def on_next(self, topic, data):
# data = bytes(json.dumps(x), 'utf-8')
# self.client.publish(bytes(self.topic, 'utf-8'), data)
self.client.publish(topic=topic, msg=data)
def on_completed(self):
print("mqtt_completed, disconnecting")
self.client.disconnect()
def on_error(self, e):
print("mqtt on_error: %s, disconnecting" %e)
self.client.disconnect()
class MQTT_MESSAGE:
def __init__(self, server):
self.station = network.WLAN(network.STA_IF)
# self.station.ifconfig(
# ('192.168.3.201', '255.255.255.0', '192.168.3.1', '192.168.3.1'))
self.server = server
self.station.active(True)
self.station.connect()
while self.station.isconnected() == False:
pass
print('wifi connected')
client_id = ubinascii.hexlify(machine.unique_id()) + '-bbb'
print(client_id, self.server)
self.client = MQTTClient(client_id, self.server)
self.client.connect()
print('mqtt connected')
def restart_and_reconnect():
print('Failed to connect to MQTT broker. Reconnecting...')
utime.sleep(10)
machine.reset()
def send(self, topic, payload):
try:
self.client.publish(topic, json.dumps(payload))
# client.disconnect()
print('message sent')
except OSError as e:
client.disconnect()
restart_and_reconnect()
except:
client.disconnect()
def main():
config = utils.Config()
# On board LED
led = machine.Pin(2, machine.Pin.OUT, machine.Pin.PULL_UP)
sensor = dht.DHT22(machine.Pin(config.get("dht_gpio", 4)))
client_id = "esp8266_" + ubinascii.hexlify(machine.unique_id()).format()
client = MQTTClient(client_id, config.get("mqtt_broker"),
config.get("mqtt_port"), config.get("mqtt_user"),
config.get("mqtt_passwd"))
try:
client.connect()
except OSError as e:
# Just report and continue, since publish will try to reconnect
print("Error when connecting to the MQTT broker")
else:
print("Connected to {}".format(config.get("mqtt_broker")))
# Iterate and publish
while True:
sensor.measure()
led.low()
client.publish("{}/temperature".format(config.get("mqtt_topic")),
str(sensor.temperature()))
client.publish("{}/humidity".format(config.get("mqtt_topic")),
str(sensor.humidity()))
led.high()
time.sleep(5)
def mqtt_client(server):
# setup the BUTton and LED
global led
import machine, ubinascii, utime
machine_id = b'ESP8266-%s' % ubinascii.hexlify( machine.unique_id() )
led = machine.Pin(2)
led.init(machine.Pin.OUT)
button = machine.Pin(0)
button.init(machine.Pin.IN, machine.Pin.PULL_UP)
# setup Mosquitto
from umqtt.robust import MQTTClient
mqttc = MQTTClient(machine_id, server)
mqttc.connect()
mqttc.set_last_will(b'test/bradley_edu', b'%s signoff 1' % ( machine_id ) )
mqttc.set_callback(callback_function)
mqttc.subscribe(b'test/#')
# run Mosquitto
butstate = button.value()
while True:
if button.value()!=butstate:
butstate = button.value()
mqttc.publish(b'test/bradley_edu', b'%s B0 %s' % ( machine_id , str(butstate) ) )
mqttc.check_msg() # this will check for messages and call the callback function if needed
utime.sleep_ms(20) # time to allow the callback function to do its job to avoid calling multiple instances
# we actually never quit but this is how shutdown should look like
mqttc.disconnect()
class MQTTReader:
__slots__ = ('host', 'port', 'topic', 'client')
def __init__(self, name, host, port, topic):
self.topic = topic
self.host = host
self.port = port
self.client = MQTTClient(name, host, port)
self.client.set_callback(sub_cb)
self._connect()
self.client.subscribe(topic=self.topic)
def _connect(self):
print("Connecting to %s:%s" % (self.host, self.port))
self.client.connect()
print("Connection successful")
def on_completed(self):
print("mqtt_completed, disconnecting")
self.client.disconnect()
def on_error(self, e):
print("mqtt on_error: %s, disconnecting" % e)
self.client.disconnect()
def disconnect(self):
self.client.disconnect()
def wait_msg(self):
self.client.wait_msg()
class AsyncMqttMessages(object):
def __init__(self):
config = Config()
self.heatmessage = {'Heating': ''}
self.tempMessage = {'TempIN': '', 'TempOUT': ''}
self.mqttID = config.mqttID
self.mqttBroker = config.mqttBroker
self.user = config.mqttUser
self.password = config.mqttPassword
self.client = MQTTClient(self.mqttID, self.mqttBroker, 1883, self.user,
self.password)
self.client.connect()
self.client.set_callback(sub_cb)
self.client.subscribe(topic="home/attackHeater/stat")
def publishHeat(self, message):
self.heatmessage['Heating'] = message
m = ujson.dumps(self.heatmessage)
self.client.publish(topic="home/attacHeater/heating", msg=m)
def publishTemp(self, temp_in, temp_out):
self.tempMessage['TempIN'] = temp_in
self.tempMessage['TempOUT'] = temp_out
m = ujson.dumps(self.tempMessage)
self.client.publish(topic="home/attacHeater/heating", msg=m)
def connect_and_subscribe(sub_callback=None):
"""Connectes to MQTT-Host and subscribes to topics. MQTT-IP, -Port and Topics must be defined in
credentials.json.
Args:
sub_callback (func(topic, msg), optional): Callback-Function when message is recieved.
Returns:
MQTT-Client
"""
with open("credentials.json", "r") as f:
credentials = ujson.load(f)
try:
from umqtt.robust import MQTTClient
except ImportError as e:
import upip
upip.install('micropython-umqtt.simple')
upip.install('micropython-umqtt.robust')
from umqtt.robust import MQTTClient
# Set Options for MQTT-Broker
client = MQTTClient(ubinascii.hexlify(machine.unique_id()),
credentials["mqtt"]["host"],
credentials["mqtt"]["port"])
# Set callback to handle Messages
if sub_callback is not None:
client.set_callback(sub_callback)
# Connect
client.connect(clean_session=False)
for topic in credentials["mqtt"]["topics"]:
client.subscribe(topic)
time.sleep(3)
client.check_msg()
return client
def mqtt_server():
global client
global client_int
if client == None:
client = MQTTClient(client_id='1ebe9d4c-9e49-4bf4-8abb-f322009c377c',
server='m16.cloudmqtt.com',
port=17330,
user='******',
password='******')
#client = MQTTClient(client_id='1ebe9d4c-9e49-4bf4-8abb-f322009c377c', server='m16.cloudmqtt.com', port=17661, user='******', password='******')
client.set_callback(sub_cb)
client.connect()
print("Connected to MQTT Client")
# the first argument is the topic, the second is the message
client.subscribe("Sensor_Data")
client_int = Timer(3)
client_int.init(period=1000,
mode=Timer.PERIODIC,
callback=client_interrupt)
#client.publish("SessionID", b"four"*8, True, 0)
client.publish("SessionID", AES.sessionID, True, 0)
client_interrupt(None)
def mqtt_msg(config):
host = config['host']
port = config['port']
mqtt_id = config['mqtt_id']
topic = config['topic']
delay = config['delay']
client = MQTTClient(mqtt_id, host, port=port)
client.connect()
d = dht.DHT22(machine.Pin(4))
try:
'''required or a timeout error occurs !?'''
d.measure()
except:
print('d.measure() failed')
while True:
try:
d.measure()
t = time.localtime()
timestamp = '{}{:02d}{:02d}{:02d}{:02d}{:02d}'.format(
t[0], t[1], t[2], t[3], t[4], t[5])
temperature = d.temperature()
humidity = d.humidity()
m = '{{"tsp":"{}", "tmp":{:02.2f}, "hmd":{:02.2f}}}'.format(
timestamp, temperature, humidity)
client.publish(topic=topic, msg=m)
except:
print('d.measure() failed')
time.sleep(delay)
class Wireless:
def __init__(self,
name='UPC0666645',
password='******',
host='192.168.0.87',
id='1'):
"""
Initiation of Wireless class which is responsible for all wireless connections, including WiFi and MQTT.
Arguments are WiFi name, password, MQTT broker IP and device ID. All are set by default, as its the first
device made.
"""
self.name = name
self.password = password
self.host_ip = host
self.device_id = id
self.wlan = network.WLAN(network.STA_IF)
self.client = MQTTClient(id, host)
self.topic = 'esp8266/' + id
def wifi_connect(self):
"""
Check connection status with any WiFi network. IF ESP8266 is not connected to any WiFi try to connect
with declared one. If attempt fails, wait 100ms and try again. Return if device connects succesfully
or it failes 50 times.
"""
try:
attempt = 0
wlan = self.wlan
if wlan.isconnected() == False:
wlan.active(True)
wlan.connect(self.name, self.password)
while wlan.isconnected() == False and attempt <= 50:
attempt += 1
utime.sleep_ms(100)
pass
return
except:
return
def wifi_status(self):
""" Get status of WiFi connection. """
return self.wlan.isconnected()
def mqtt_connect(self):
""" Connect with declared MQTT client. """
try:
self.client.connect()
self.mqtt_is_connected = True
except:
self.mqtt_is_connected = False
def mqtt_status(self):
""" Get the MQQT connection status. """
return self.mqtt_is_connected
def publish(self, data):
""" Publish 'data' on set topic. """
self.client.publish(self.topic, data)
class Connect:
def __init__(self):
self.sta = network.WLAN(network.STA_IF)
self.ConnectWiFi()
self.c = MQTTClient("umqtt_client", "192.168.110.51")
self.ConnectMQTT()
def ConnectMQTT(self):
print("connecting to mqtt ROBUST")
self.c.set_callback(self.deb)
self.c.connect()
self.c.subscribe("test/msg")
def Emit(self):
emi = MQTTClient('emiter', "192.168.110.51")
emi.connect()
emi.publish("test/msg", "from nodeMCU !")
emi.disconnect()
def deb(self, topic, msg):
print((topic, msg))
def ConnectWiFi(self):
self.sta.active(True)
self.sta.connect('g.tec', '#g.tec#17!')
print("connecting to WiFi at gtec")
while self.sta.isconnected() == False:
pass
print("Connection successful")
print(self.sta.ifconfig())
def connect_mqtt():
global mqtt_client
try:
with open(KEY_FILE, "r") as f:
key = f.read()
print("Got Key")
with open(CERT_FILE, "r") as f:
cert = f.read()
print("Got Cert")
mqtt_client = MQTTClient(client_id=MQTT_CLIENT_ID,
server=MQTT_HOST,
port=MQTT_PORT,
keepalive=5000,
ssl=True,
ssl_params={
"cert": cert,
"key": key,
"server_side": False
})
mqtt_client.connect()
print('MQTT Connected')
except Exception as e:
print('Cannot connect MQTT: ' + str(e))
raise
class TemperatureClient:
"""
Represents an MQTT client which publishes temperature data on an interval
"""
def __init__(self,
client_id,
server,
pin,
fahrenheit=True,
topic=None,
**kwargs):
"""
Instantiates a TemperatureSensor and MQTTClient; connects to the
MQTT broker.
Arguments `server` and `client_id` are required.
:param client_id: Unique MQTT client ID
:type client_id: str
:param server: MQTT broker domain name / IP
:type server: str
:param pin: 1-Wire bus pin
:type pin: int
:param fahrenheit: Whether or not to publish temperature in Fahrenheit
:type fahrenheit: bool
:param topic: Topic to publish temperature on
:type topic: str
:param kwargs: Arguments for MQTTClient constructor
"""
self.sensor = TemperatureSensor(pin)
self.client = MQTTClient(client_id, server, **kwargs)
if not topic:
self.topic = 'devices/%s/temperature/degrees' % \
self.client.client_id
else:
self.topic = topic
self.fahrenheit = bool(fahrenheit)
self.client.connect()
def publishTemperature(self):
"""
Reads the current temperature and publishes a JSON payload on the
configured topic, e.g., `{"unit": "F", "degrees": 72.5}`
"""
t = self.sensor.read_temp(self.fahrenheit)
payload = dict(degrees=t)
if self.fahrenheit:
payload['unit'] = 'F'
else:
payload['unit'] = 'C'
self.client.publish(self.topic, json.dumps(payload))
def start(self, interval=60):
"""
Begins to publish temperature data on an interval (in seconds).
This function will not exit! Consider using deep sleep instead.
:param interval: How often to publish temperature data (60s default)
:type interval: int
"""
while True:
self.publishTemperature()
class MQTTWriter:
__slots__ = ('host', 'port', 'topic', 'client')
def __init__(self, name, host, port, topic):
self.topic = topic
self.host = host
self.port = port
self.client = MQTTClient(name, host, port)
self._connect()
def _connect(self):
print("Connecting to %s:%s" % (self.host, self.port))
self.client.connect()
print("Connection successful")
def on_next(self, x):
data = bytes(json.dumps(x), 'utf-8')
self.client.publish(bytes(self.topic, 'utf-8'), data)
def on_completed(self):
print("mqtt_completed, disconnecting")
self.client.disconnect()
def on_error(self, e):
print("mqtt on_error: %s, disconnecting" % e)
self.client.disconnect()
def device_connect():
global MQTT_CLIENT
try: #all this below runs once ,equivalent to Arduino's "setup" function)
with open(KEY_FILE, "r") as f:
key = f.read()
print("set private Key")
with open(CERT_FILE, "r") as f:
cert = f.read()
print("set client Cert")
MQTT_CLIENT = MQTTClient(client_id=MQTT_CLIENT_ID,
server=MQTT_HOST,
port=MQTT_PORT,
keepalive=5000,
ssl=True,
ssl_params={
"cert": cert,
"key": key,
"server_side": False
})
MQTT_CLIENT.connect()
print('MQTT Connected')
MQTT_CLIENT.set_callback(sub_cb)
MQTT_CLIENT.subscribe(SUB_TOPIC)
print('Subscribed to %s as the incoming topic' % (SUB_TOPIC))
return MQTT_CLIENT
except Exception as e:
print('Cannot connect MQTT: ' + str(e))
raise
def main():
machine.freq(160000000)
c = MQTTClient("HSBNE-small-sign", "10.0.1.253", user="", password="")
c.set_callback(sub_cb)
c.set_last_will("devices/small-sign/state", "offline", retain=True)
c.connect()
c.subscribe("devices/small-sign/#")
c.publish("devices/small-sign/state", "online", retain=True)
c.publish("devices/main-sign/ip",
network.WLAN(network.STA_IF).ifconfig()[0],
retain=True)
sign = SignMatrix()
try:
while True:
while c.check_msg():
pass
if enable != 0:
sign.set_delay(delay)
sign.scroller(text)
else:
c.wait_msg()
except KeyboardInterrupt:
c.publish("devices/small-sign/state", "offline", retain=True, qos=1)
c.disconnect()
def main():
led = Pin(2, Pin.OUT, value=1)
def sub_cb(topic, msg):
led.off() # actually on
utime.sleep_ms(500)
led.on() # actually off
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
sta_if.connect(WLAN_ESSID, WLAN_PASSWORD)
while not sta_if.isconnected():
utime.sleep_ms(1)
print("WLAN Connected")
c = MQTTClient(MQTT_ID,
MQTT_SERVER,
user=MQTT_USERNAME,
password=MQTT_PASSWORD)
c.DEBUG = True
c.set_callback(sub_cb)
c.connect(clean_session=False)
c.subscribe(MQTT_TOPIC)
print("MQTT Connected")
gc.collect()
while True:
c.check_msg()
utime.sleep_ms(10)
c.disconnect()
def initialise(settings=configuration.mqtt.settings):
global client, keepalive, topic_path
client_id = get_unique_id()
keepalive = settings["keepalive"]
topic_path = settings["topic_path"]
if topic_path == "$me": topic_path = get_topic_path(namespace)
client = MQTTClient(client_id,
settings["host"],
settings["port"],
keepalive=keepalive)
client.set_callback(on_message)
client.set_last_will(topic_path + "/state", "nil")
client.connect() # TODO: Catch exception
event.add_timer_handler(mqtt_ping_handler, keepalive * 1000)
if settings["mqtt_insecure_exec"]:
add_message_handler(on_exec_message, "$me/exec")
for topic in settings["topic_subscribe"]:
if topic.startswith("$all/"): topic = "+/+/+" + topic[4:]
if topic.startswith("$me/"): topic = topic_path + topic[3:]
client.subscribe(topic)
print(" ###### MQTT: Connected to %s: %s" %
(settings["host"], topic_path))
def main(config):
global temperature_sensor, motion_sensor, humidity_sensor
client_id = "esp8266_room_sensor_" + ubinascii.hexlify(
machine.unique_id()).decode('utf-8')
print(client_id)
mqtt = MQTTClient(client_id,
config['mqtt']['broker'],
port=config['mqtt']['port'],
user=config['mqtt']['user'],
password=config['mqtt']['password'])
mqtt.connect()
print("Connected to {}".format(config['mqtt']['broker']))
motion_sensor = hassnode.BinarySensor(mqtt, config['motion']['name'],
"motion",
config['motion']['entity_id'])
temperature_sensor = hassnode.Sensor(mqtt, config['temperature']['name'],
"°C",
config['temperature']['entity_id'])
humidity_sensor = hassnode.Sensor(mqtt, config['humidity']['name'], "%",
config['humidity']['entity_id'])
pir = Pin(PIR_PIN, Pin.IN)
pir.irq(trigger=Pin.IRQ_RISING | Pin.IRQ_FALLING, handler=motion_callback)
loop = asyncio.get_event_loop()
loop.create_task(dht_task())
loop.run_forever()
def send_mqtt(payload_out):
global ip
slimDNS = None
try:
slimDNS = SlimDNSServer(wlan.ifconfig()[0])
host_address_bytes = slimDNS.resolve_mdns_address(MQTT_SERVER_MDNS_ADDRESS)
print(host_address_bytes)
if ip != None:
print(ip)
ip = bytes_to_dotted_ip(host_address_bytes)
except Exception as e:
print("Could not connect find mDNS address " + str(e))
if ip != None:
print('Connecting to MQTT server:', ip)
mqtt = None
try:
mqtt = MQTTClient(client_id=unique_id, server=ip, port=1883)
mqtt.connect()
except Exception as e:
print('Could not connect to MQTT server')
return
try:
mqtt.publish("vendingmachine/sensors", payload_out)
mqtt.disconnect()
except Exception:
print("Failed To Publish")
class MQTTlocal:
__slots__ = ('host', 'port', 'topic', 'client')
def __init__(self, name, host, port, pub_topic, sub_topic):
self.sub_topic = sub_topic
self.pub_topic = pub_topic
self.host = host
self.port = port
self.client = MQTTClient(name, host, port)
self.client.set_callback(sub_cb)
self._connect()
self.client.subscribe(topic=self.sub_topic)
def _connect(self):
print("Connecting to %s:%s" % (self.host, self.port))
self.client.connect()
print("Connection successful")
def on_next(self, x):
data = bytes(json.dumps(x), 'utf-8')
self.client.publish(bytes(self.pub_topic, 'utf-8'), data)
def on_completed(self):
print("mqtt_completed, disconnecting")
self.client.disconnect()
def on_error(self, e):
print("mqtt on_error: %s, disconnecting" % e)
self.client.disconnect()
def check_msg(self):
print("Check messages")
self.client.check_msg()
def connect_mqtt():
try:
with open(KEY_FILE, "r") as f:
key = f.read()
print("MQTT received KEY")
with open(CERT_FILE, "r") as f:
cert = f.read()
print("MQTT received CERTIFICATE")
mqtt_client = MQTTClient(client_id=MQTT_CLIENT_ID, server=MQTT_HOST, port=MQTT_PORT, keepalive=5000, ssl=True, ssl_params={"cert":cert, "key":key, "server_side":False})
mqtt_client.connect()
mqtt_client.set_callback(sub_cb)
print("MQTT is connected")
mqtt_client.subscribe(SHADOW_GET_TOPIC)
print("Subscribed to %s topic" % (SHADOW_GET_TOPIC))
while True:
mqtt_client.publish(SHADOW_UPDATE_TOPIC, str(read_sensor_value()))
mqtt_client.wait_msg()
except Exception as e:
print('Cannot connect to MQTT ' + str(e))
raise
def mqttB(config): #HeartBeat client
state = DISCONNECTED
global clientB
if config['username'] != "NA" and config['password'] != "NA":
clientB = MQTTClient(MAC,
config['host'],
user=config['username'],
password=config['password'],
port=int(config['port']),
keepalive=60,
ssl=False)
else:
clientB = MQTTClient(MAC,
config['host'],
port=int(config['port']),
keepalive=60,
ssl=False)
while state != CONNECTED:
try:
state = CONNECTING
clientB.connect()
state = CONNECTED
except:
print('Could not establish MQTT-B connection')
time.sleep(1)
if state == CONNECTED:
print('MQTT-B Connected')
def connect_and_subscribe():
global client_id, mqtt_server, topic_sub
client = MQTTClient(client_id, mqtt_server)
client.set_callback(sub_cb)
client.connect()
client.subscribe(topic_sub)
print('Connected to: %s \nSubscribed to: %s' % (mqtt_server, topic_sub))
return client
def connect_mqtt():
global mqtt_client
mqtt_client = MQTTClient(client_id=MQTT_CLIENT_ID,
server=MQTT_HOST,
port=MQTT_PORT,
ssl=False)
mqtt_client.connect()
print('MQTT Connected')
class EVENTS:
def mqtt_sub_cb(topic, msg):
print((topic, msg))
def __init__(self, client, broker, id):
self.uid = '{:02x}{:02x}{:02x}{:02x}'.format(id[0], id[1], id[2],
id[3])
self.client = MQTTClient(client, broker)
self.client.set_callback(self.mqtt_sub_cb)
print('attempt to %s MQTT broker' % (broker))
try:
self.client.connect()
print('Connected to %s MQTT broker' % (broker))
except:
print("error connecting to MQTT broker")
pass
def logit(self, ts, temp, pressure, humidity, device="", delimiter=","):
print("ts=", ts)
payload = {
"uid":
str(self.uid),
"device:":
str(device),
"ts":
str(ts),
"ts2":
'{:04d}/{:02d}/{:02d} {:02d}:{:02d}:{:02d}.{:06d}'.format(
ts[0], ts[1], ts[2], ts[4], ts[5], ts[6], ts[7]),
"temp":
str(temp),
# "pressure":str(pressure),
"pressure":
'{:3.2f}'.format(pressure),
"humidity":
str(humidity)
}
d = ujson.dumps(payload)
try:
self.client.publish("sensors/", d)
self.client.publish("sensorsd/id", str(self.uid), qos=1)
self.client.publish("sensorsd/id/ts", str(ts), qos=1)
self.client.publish("sensorsd/id/ts/temp", str(temp), qos=1)
self.client.publish("sensorsd/id/ts/pressure",
str(pressure),
qos=1)
self.client.publish("sensorsd/id/ts/humidity",
str(humidity),
qos=1)
# self.client.publish("sensorsd/ts",str(timestamp),qos=1)
# self.client.publish("sensorsd/temp",str(temp),qos=1)
# self.client.publish("sensorsd/pressure",str(pressure),qos=1)
# self.client.publish("sensorsd/humidity",str(humidity),qos=1)
except:
print("error publishing passing")
pass
def mqttSendQueue(inMqttBroker,
ioMqttCounter,
inMqttSendLimit=CONFIG['mqttSendLimit']):
uping.ping(inMqttBroker, 1)
topic = CONFIG["mqttMeasureTopic"]
msgCount = 0
mqttClient = MQTTClient(
GLOBAL_MESSAGE_QUEUE.uniqueID(),
inMqttBroker,
ssl=CONFIG["mqttSSL"],
user=CONFIG["mqttUser"],
password=CONFIG["mqttPassword"],
)
mqttLastWill = ("-1, -1, -1, -1, -1, -1, -1, -1, -1, " +
GLOBAL_MESSAGE_QUEUE.uniqueID() + ", " +
MESSAGE_TYPES["mqttErrorMessage"] + ", " +
"UngracefulDisconnect, " +
"Ungraceful disruption of MQTT commit, ")
printDebug("queue mqttLastWill", mqttLastWill)
mqttClient.set_last_will(topic, mqttLastWill)
try:
mqttClient.connect()
print("## Connected with MQTT Broker", inMqttBroker)
printDataDebug("ioMqttData", ioMqttData)
while (GLOBAL_MESSAGE_QUEUE.lenQ()[0] > 0
and msgCount < inMqttSendLimit):
msg = GLOBAL_MESSAGE_QUEUE.getMsg()
mqttClient.publish(topic, json.dumps(msg))
msgCount += 1
ioMqttCounter += 1
except Exception as e:
sys.print_exception(e)
errorMessage = mqttErrorMessage(
GLOBAL_MESSAGE_QUEUE.uniqueID(),
"Exception",
"MQTTClientConnectError",
str(e),
)
GLOBAL_MESSAGE_QUEUE.addMsg(errorMessage, "high")
try:
mqttClient.disconnect()
except Exception as e:
sys.print_exception(e)
errorMessage = mqttErrorMessage(
GLOBAL_MESSAGE_QUEUE.uniqueID(),
"Exception",
"MQTTClientDisconnectError",
str(e),
)
GLOBAL_MESSAGE_QUEUE.addMsg(errorMessage, "high")
return ioMqttCounter
def connect_mqtt():
global mqtt_clientID, mqtt_server
client = MQTTClient(mqtt_clientID,
mqtt_server,
user=mqtt_username,
password=mqtt_username)
client.connect()
print("\nConnected to {} MQTT broker".format(mqtt_server))
return client
class Mqtt:
def __init__(self, client_id, broker):
self.client_id = client_id
self.client = MQTTClient(client_id, broker)
self.client.connect()
print("Connected to {}".format(broker))
def publish(self, topic, message):
self.client.publish('{}/{}'.format(topic, self.client_id), message)
class MoistureMonitor():
def __init__(self, led=None):
self.led = led
self.t = machine.Timer(0)
self.a = machine.ADC(0)
gc.collect()
loops = 0
self.m = MQTTClient(config.mqtt.id, config.mqtt.host, **config.mqtt["auth"])
while True:
try:
self.m.connect()
except (IndexError, OSError) as err:
print("Retrying connect because of a {}...".format(str(err)))
if loops > 10:
print("Resetting the board")
machine.reset()
except MemoryError:
print("Got a memory error. Resetting the board in 2 seconds")
time.sleep(2)
machine.reset()
except:
raise
else:
break
loops += 1
time.sleep(1)
def start(self):
self.m.publish(b'nodes', 'hi there')
self.t.init(period=5000, mode=machine.Timer.PERIODIC, callback=lambda t: self.update())
def stop(self):
self.t.deinit()
def update(self):
now = time.localtime()
tstamp = "{:04d}-{:02d}-{:02d} {:02d}:{:02d}:{:02d}".format(*now[0:6])
val = { "m": self.a.read() / 1024, "t": tstamp }
print("Updating moisture, new value is {}".format(val))
self.m.publish(b"moisture", json.dumps(val).encode('utf-8'), retain=True)
if self.led is not None:
self.led(0)
time.sleep(0.1)
self.led(1)
class DoorAlarm(object):
def __init__(self):
self.config = None
self.p0 = machine.Pin(2, machine.Pin.OUT)
def load_config(self):
with open('cfg.json', 'r') as cfg:
self.config = ujson.load(cfg)
def connect_wifi(self):
ap_if = network.WLAN(network.AP_IF)
ap_if.active(False)
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
if sta_if.isconnected():
sta_if.disconnect()
sta_if.connect(self.config['ssid'], self.config['passwd'])
for _ in range(20):
time.sleep(1)
if sta_if.isconnected():
return
print('Unable to connect to AP: {}'.format(ssid))
sys.exit(1)
def mqtt_callback(self, topic, msg):
self.p0.value(not self.p0.value())
def mqtt_subscribe(self):
client_id = b'tom_' + ubinascii.hexlify(machine.unique_id())
self.mqtt = MQTTClient(client_id, self.config['host'],
port=int(self.config['port']))
self.mqtt.set_callback(self.mqtt_callback)
self.mqtt.connect()
self.mqtt.subscribe(self.config['topic'])
c.set_callback(sub_cb)
# Connect to server, requesting not to clean session for this
# client. If there was no existing session (False return value
# from connect() method), we perform the initial setup of client
# session - subscribe to needed topics. Afterwards, these
# subscriptions will be stored server-side, and will be persistent,
# (as we use clean_session=False).
#
# There can be a problem when a session for a given client exists,
# but doesn't have subscriptions a particular application expects.
# In this case, a session needs to be cleaned first. See
# example_reset_session.py for an obvious way how to do that.
#
# In an actual application, it's up to its developer how to
# manage these issues. One extreme is to have external "provisioning"
# phase, where initial session setup, and any further management of
# a session, is done by external tools. This allows to save resources
# on a small embedded device. Another extreme is to have an application
# to perform auto-setup (e.g., clean session, then re-create session
# on each restart). This example shows mid-line between these 2
# approaches, where initial setup of session is done by application,
# but if anything goes wrong, there's an external tool to clean session.
if not c.connect(clean_session=False):
print("New session being set up")
c.subscribe(b"foo_topic")
while 1:
c.wait_msg()
c.disconnect()