def main():
btn = machine.Pin(5, machine.Pin.IN, machine.Pin.PULL_UP)
led = machine.Pin(2, machine.Pin.OUT) #D4
if btn.value():
led.value(1)
sta_if = network.WLAN(network.STA_IF)
if not sta_if.isconnected():
sta_if.active(True)
sta_if.connect('ESL_Lab1', 'wifi@esl')
while not sta_if.isconnected():
pass
led.value(0)
dhtValue = dht.DHT22(machine.Pin(4))
dhtValue.measure()
led.value(1)
c = MQTTClient(CLIENT_ID, SERVER)
c.connect()
DHTbuff = "%.2f,%.2f" % (dhtValue.humidity(), dhtValue.temperature())
c.publish(TOPIC, DHTbuff)
led.value(0)
time.sleep(3)
# print ("Data temp : "+str(dhtValue.temperature())+" humidity : "+str(dhtValue.humidity()))
rtc = machine.RTC()
rtc.irq(trigger=rtc.ALARM0, wake=machine.DEEPSLEEP)
rtc.alarm(rtc.ALARM0, 2000)
machine.deepsleep()
def activateDeepSleep(self, value, millisec):
# print (millisec)
if value:
c = MQTTClient(CLIENT_ID, SERVER)
c.connect()
dhtValue = dht.DHT22(machine.Pin(4))
dhtValue.measure()
c.publish(TOPIC, b""+str(dhtValue.temperature())+","+str(dhtValue.humidity()))
time.sleep(3)
# print ("Data temp : "+str(dhtValue.temperature())+" humidity : "+str(dhtValue.humidity()))
set_deepSleep(millisec)
def connect_and_subscribe():
global client
client = MQTTClient(machine_id, broker)
client.set_callback(callback)
client.connect()
print("Connected to {}".format(broker))
for topic in (b'config', b'control'):
t = topic_name(topic)
client.subscribe(t)
print("Subscribed to {}".format(t))
def main(server=SERVER):
c = MQTTClient(CLIENT_ID, server)
c.connect()
print("Connected to %s, waiting for button presses" % server)
while True:
while True:
if button.value() == 0:
break
time.sleep_ms(20)
print("Button pressed")
c.publish(TOPIC, b"toggle")
time.sleep_ms(200)
c.disconnect()
def SendToThingspeak(host, api_key, channel_id, result):
from umqtt.simple import MQTTClient
try:
client = MQTTClient('umqtt_client', host)
topic = 'channels/%s/publish/%s' % (channel_id, api_key)
payload = (
''.join(['&field%d=%.2f' % (x + 1, result[x]) for x in range(8)]) +
'&status=Pressure: %s; Forecast: %s; Accuracy: %s percent' %
(result[10], result[9], result[8]))[1:]
client.connect()
client.publish(topic, payload)
client.disconnect()
print('Sent data to Thingspeak via MQTT')
except:
print('Failed to send data to Thingspeak via MQTT')
def main(server=SERVER):
c = MQTTClient(CLIENT_ID, server)
c.connect()
threshold = 256
print("Connected to %s, waiting for ring" % server)
while True:
while True:
if piezo.value() > threshold:
break
time.sleep_ms(20)
print("Ring")
c.publish(TOPIC, b"ON")
time.sleep_ms(200)
class AWSShadow:
def __init__(self, client_id=imei, hostname=aws_endpoint, sslp=ssl_params):
self.client = MQTTClient(client_id,
hostname,
ssl=True,
ssl_params=sslp)
self.connected = False
def is_connected(self):
return self.connected
def connect(self):
try:
print("trying MQTT")
self.client.connect()
self.connected = True
print("connected to MQTT")
except OSError as e:
print_exception(e)
self.connected = False
@staticmethod
def _get_on_off(value):
if value:
return 'on'
else:
return 'off'
def update(self, light, nightlight, lumens):
try:
print("updating shadow")
telemetry = {"lumens": lumens}
state = {
"state": {
"reported": {
"light_state": self._get_on_off(light),
"night_light_state": self._get_on_off(nightlight)
},
"desired": None
}
}
telemetry_path = "smartswitch/{}/lumens/".format(imei)
shadow_path = "$aws/things/{}/shadow/".format(imei)
print(shadow_path)
self.client.publish(telemetry_path, ujson.dumps(telemetry))
print("updated {}".format(telemetry_path))
self.client.publish(shadow_path + "update", ujson.dumps(state))
print("updated {}".format(shadow_path))
return True
except OSError:
self.connected = False
def main(server="192.168.0.10"):
ap_if = network.WLAN(network.AP_IF)
ap_if.active(False)
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
sta_if.connect('EEERover', 'exhibition')
gas = gas_sensor_setup(5, 4, 100000)
th = th_sensor_setup(5, 4)
# pre = pre_sensor_setup(5, 4, 100000)
time.sleep_ms(500)
c = MQTTClient(machine.unique_id(), server)
c.connect()
while True:
no2_val, co_val = gas_sensor_read(gas)
t_val, h_val = th_sensor_read(th)
# pre_val = pre_sensor_read(pre)
send_msg = {
'NO2': no2_val,
'Temperature': t_val,
'Humidity': h_val,
'Pressure': pre_val,
'CO': co_val
}
print("Temp ", t_val)
print("no2 ", no2_val)
print("Pressure ", pre_val)
print("hum ", h_val)
print("co", co_val)
c.publish(b"esys/Thom&Doug/test", bytes(json.dumps(send_msg), 'utf-8'))
time.sleep_ms(5000)
c.disconnect()
def send_message():
client = MQTTClient("test1",
"calupietru.duckdns.org",
port=1883,
user="******",
password="******")
client.connect()
m = get_data()
k = kg()
mem = gc.mem_free()
message = {
"espid": "Ascea",
"timestamp": None,
"memoria_libera": str(mem),
"temperatura": round(m[1], 1),
"umidita": round(m[0], 1),
"peso": round(k, 1),
}
message["timestamp"] = int(time.time())
client.publish("/maia/1", json.dumps(message))
client.disconnect()
def __init__(self,
broker,
ssl,
username,
password,
prefix='',
client_id=None):
if client_id is None:
client_id = ubinascii.hexlify(machine.unique_id()).decode()
self.client_id = client_id
self.full_client_id = '{}{}'.format(prefix, client_id)
print('Using MQTT client_id "{}", full_client_id "{}"'.format(
self.client_id, self.full_client_id))
self.broker = broker
self.client = MQTTClient(self.full_client_id,
self.broker,
ssl=ssl,
user=username,
password=password)
async def mqtt_task(mqtt_queue, config):
broker = config['broker']
client_id = b'esp32_' + ubinascii.hexlify(machine.unique_id())
client = MQTTClient(client_id, broker)
client.connect()
try:
while True:
msg = await mqtt_queue.get()
data = msg[1]
if msg[0] == 'pm':
data['timestamp'] = utime.time()
print(ujson.dumps(data))
client.publish('pm', bytearray(ujson.dumps(data)))
elif msg[0] == 'hum/tmp':
client.publish('hum/tmp', bytearray(data))
else:
print('unkown message: ' + msg[0])
except asyncio.CancelledError:
return
def main(timer_id=None):
led = Pin(5, Pin.OUT)
i2c = I2C(scl=Pin(22), sda=Pin(21), freq=10000)
bme = BME280(i2c=i2c)
mqtt = MQTTClient(CLIENT_ID, SERVER, 1883, USER, PASS)
try:
mqtt.connect()
js = json.dumps({
"temperature": bme.temperature[:-1],
"humidity": bme.humidity[:-1],
"pressure": bme.pressure[:-3]
})
led.off()
print(timer_id, js)
mqtt.publish(TOPIC, js)
led.on()
except Exception as ex:
print(ex)
finally:
mqtt.disconnect()
gc.collect()
def main():
"""Measure and talk to MQTT broker."""
d = DHT11(machine.Pin(0))
SERVER = '192.168.1.8'
CLIENT_ID = ubinascii.hexlify(machine.unique_id())
TOPIC_HUMIDITY = b'kgrund/fukt'
TOPIC_TEMPERATURE = b'kgrund/temp'
c = MQTTClient(CLIENT_ID, SERVER)
c.connect()
print('Connected to {}'.format(SERVER))
while True:
"""Measure and then publish values to the broker every 20 seconds."""
try:
d.measure()
humidity = bytes(str(d.humidity()), 'ascii')
temperature = bytes(str(d.temperature()), 'ascii')
c.publish(TOPIC_HUMIDITY, humidity)
c.publish(TOPIC_TEMPERATURE, temperature)
except Exception:
print('Cant find DHT, will try again')
time.sleep(20)
def publish_test(client_id=CLIENT_ID, hostname=AWS_ENDPOINT, sslp=SSL_PARAMS):
"""
Connects to AWS, publishes a message and disconnects.
:param client_id: Unique identifier for the device connected.
:param hostname: AWS hostname to connect to.
:param sslp: SSL certificate parameters.
"""
# Connect to AWS.
client = MQTTClient(client_id, hostname, ssl=True, ssl_params=sslp)
print("- Connecting to AWS... ", end="")
client.connect()
print("[OK]")
# Publish message.
print("- Publishing message... ", end="")
client.publish(TOPIC, '{"message": "%s"}' % MESSAGE)
print("[OK]")
# Disconnect.
client.disconnect()
print("- Done")
def main():
print("Writing")
write_morse("PARIS")
print("")
print("Reading")
message = read_morse()
print("Got: " + message)
print("Connecting")
client = MQTTClient(CONFIG['client_id'], CONFIG['broker'])
client.connect()
print("Connected to {}".format(CONFIG['broker']))
print("Publishing to {}".format(CONFIG['topic']))
datastr = "ts=" + str(utime.ticks_ms()) + "&val=" + message
client.publish('{}/{}'.format(CONFIG['topic'], CONFIG['client_id']),
bytes(datastr, 'utf-8'))
client.disconnect()
def mqtt_sub(server, topic, callback):
global subscribe_thread
global subscribe_client
c = MQTTClient("cokey_mqtt_client", server)
c.set_callback(callback)
if (True != c.connect()):
return False
if (True != c.subscribe(topic)):
return False
subscribe_client = c
if (not subscribe_thread):
_thread.start_new_thread(mqtt_sub_loop, ())
subscribe_thread = True
return True
def init_client():
global client
print( "Trying to connect to mqtt broker." )
wifi.connect()
try:
client = MQTTClient(config.mqtt_client_id, config.mqtt_broker, user=config.mqtt_user, password=config.mqtt_password)
client.connect()
print("Connected to {}".format(config.mqtt_broker))
t = config.mqtt_topic + b"/#"
client.subscribe(t)
print("Subscribed to %s topic" % t)
except:
print( "Trouble to init mqtt." )
def get_client():
#Create our MQTT client.
client = MQTTClient(client_id=DEVICE_ID,
server=MQTT_BRIDGE_HOSTNAME,
port=MQTT_BRIDGE_PORT)
client.set_callback(on_message)
try:
client.connect()
except Exception as err:
print(err)
raise(err)
return client
def temperature():
while (True):
try:
d = dht.DHT22(machine.Pin(4))
d.measure()
c = MQTTClient('client', '192.168.4.4')
c.connect()
c.publish('temperature',
str(d.temperature()) + ' ' + str(d.humidity()))
time.sleep(1800)
except:
time.sleep(10)
def send_data(server=SERVER,
topic=b'foo_topic',
data=b'Hello!'):
"""Send data via MQTT.
Keyword arguments:
server -- IP of the MQTT Broker.
topic -- The MQTT topic.
data -- The data.
Test connection on the broker:
mosquitto_sub -t foo_topic
"""
try:
client = MQTTClient("umqtt_client", server)
client.connect()
client.publish(topic, data)
client.disconnect()
except e:
print('Data logging via MQTT failed:')
print(e)
class MQTTManager:
"""Manages communication to/from the MQTT broker"""
def __init__(self):
self.topic = "esys/dadada/"
if client_id == "":
self.client_id = machine.unique_id()
else:
self.client_id = client_id
self.broker = broker
self.client = MQTTClient(self.client_id, self.broker)
self.timestamp = ""
self.client.set_callback(self.update_timestamp())
self.client.connect()
self.client.subscribe("esys/time")
def publish(self, topic, message):
"""publish message to the broker with topic"""
self.client.publish(topic, message)
def update_timestamp(self, topic, message):
"""callback to update timestamp"""
self.timestamp = message
def connect_and_subscribe():
server = CONFIG["MQTT_HOSTNAME"]
client = MQTTClient(
client_id=CONFIG["MQTT_CLIENT_ID"],
server=server,
user=CONFIG["MQTT_USERNAME"],
password=CONFIG["MQTT_PASSWORD"],
)
print("Connecting to", server)
client.set_callback(update_state_from_mqtt_message)
client.connect(clean_session=True)
print("Connected to %s MQTT broker" % server)
client.subscribe(TOPIC)
print('Subscribed to topic "%s"' % str(TOPIC))
return client
def main():
topic = configuration.get('topic')
submit_interval = configuration.get('submit_interval')
exception_timeout = configuration.get('exception_reset_timeout')
mqtt_server_ip = configuration.get('mqtt_server_ip')
client_id = ubinascii.hexlify(machine.unique_id())
try:
client = MQTTClient(client_id, mqtt_server_ip)
client.connect()
print('Connected to {}'.format(mqtt_server_ip))
temperature, humidity = sensor.measure()
info = {'temperature': temperature, 'humidity': humidity}
client.publish(topic, ujson.dumps(info))
client.disconnect()
print('sleeping deeply for {} seconds'.format(submit_interval))
# deep sleep argument in microseconds
esp.deepsleep(submit_interval * 1000000)
except Exception as e:
print(('Caught exception, {}'
'resetting in {} seconds...').format(e, exception_timeout))
time.sleep(exception_timeout)
machine.reset()
def main(server="localhost"):
c = MQTTClient("NDC MicroPython controller", server)
c.connect()
def callback(p):
print("PUSHED")
c.publish(b"foo_topic", b"UP")
e_click = Pin(27, Pin.IN, Pin.PULL_UP)
e_click.irq(trigger=Pin.IRQ_FALLING, handler=callback)
try:
while True:
pass
finally:
c.disconnect()
def main():
client = MQTTClient(client_id, mqtt_server, mqtt_port, mqtt_user,
mqtt_password)
client.connect()
print("Connected to {}".format(mqtt_server))
while True:
#d = dht.DHT11(machine.Pin(5)) # NodeMCU D2
d = dht.DHT22(machine.Pin(5)) # NodeMCU D2
d.measure()
data = d.temperature() # eg. 23 (°C)
client.publish('{}/{}'.format(topic, client_id),
bytes(str(data), 'utf-8'))
print('sensor temperature: {}'.format(data))
time.sleep(2)
def init_all():
#declare so u can modify the glob vars
global Wifi_SSID, Wifi_Pass, Devices, Devices_Data, Mqtt_User, Mqtt_Pass, MQTT_Client, Motion_Detectors, Motion
#get config file
with open("config_web/Configuration.json", 'r') as f:
conf = f.read()
config = json.loads(conf)
#Networks
Wifi_SSID = config["Used_Net"]['SSID']
Wifi_Pass = config["Used_Net"]["Password"]
#Devices
Devices = dict(config["Devices"][0])
#Devices_Data is init here so it ease the job of writing data same structure on the config file
Devices_Data = dict(config["Devices"][0])
#in Grab_DATA_Devices_Send we don't need these three Devices
Devices_Data.pop("Light")
Devices_Data.pop("RGB")
Devices_Data.pop("MSense")
#Declaring interupts for the motion detecters
for i in Devices["MSense"]:
pir = Pin(i, Pin.IN)
pir.irq(trigger=Pin.IRQ_RISING, handler=handle_interrupt)
Motion_Detectors.append(pir)
#init motion alarm
Motion[0] = False
Motion[1] = "INIT"
#Declaring as list
Devices_Data["DHT"] = []
Devices_Data["GSense"] = []
#Mqtt: Get username because we gonna need it after for publishing topics
Mqtt_User = config["Mqtt_User"]
#Mqtt: client with :clientid , Server ip/domain, username ,password
MQTT_ClientID = config["ClientID"]
print(config["Mqtt_Server"] + "----" + config["ClientID"])
MQTT_Client = MQTTClient(config["ClientID"],
config["Mqtt_Server"],
user=config["Mqtt_User"],
password=config["Mqtt_Pass"])
#init phonenumbers for send alarm msg
Phonenumbers = config["Phonenumbers"]
def publisher():
from umqtt.simple import MQTTClient
import time, network
from project import d
from machine import Pin
SERVER = '149.28.147.236'
CLIENT_ID = 'esp8266 - A' # 客户端的ID
TOPIC1 = b'temperature' # TOPIC的ID
TOPIC2 = b'humidity' # TOPIC的ID
led = machine.Pin(2, machine.Pin.OUT)
try:
client = MQTTClient(CLIENT_ID, SERVER)
except:
print('network error')
client.connect()
while True:
d.measure()
temp = d.temperature()
hum = d.humidity()
print(temp, hum)
led.off()
time.sleep(0.5)
led.on()
client.publish(TOPIC2, str(hum))
client.publish(TOPIC1, str(temp))
print('publised @ ', time.time())
time.sleep(5)
def publish_Obs(client_id=CLIENT_ID, hostname=SERVER, keepalive=60):
global topic_ToSend
global msg_ToSend
global obs_publishReady
global publish_Success
global wdt
global tfile_readComplete
global mfile_readComplete
global timeStart
publish_Success = False
cnt = 0
wdt.feed()
client = MQTTClient(client_id, hostname)
issue = client.connect()
if issue == 0:
while cnt < obs_publishReady:
topic = topic_ToSend[cnt]
msg = msg_ToSend[cnt]
client.publish(topic, msg)
wdt.feed()
cnt = cnt + 1
wdt.feed()
time.sleep(0.5)
client.disconnect()
if cnt == obs_publishReady:
publish_Success = True
timeStart = time.ticks_ms()
obs_publishReady = 0
topic_ToSend.clear()
msg_ToSend.clear()
if files_Exist == True and tfile_readComplete == True and mfile_readComplete == True:
wdt.feed()
deleteFiles()
time.sleep(1)
createFiles()
else:
wdt.feed()
else: ##client socket connection contained error to post to message que
topic_ToSend.append(msg_Topic)
msg_ToSend.append(issue)
obs_publishReady = obs_publishReady + 1
def publish_message(message) -> None: # message is in binary format
print('Publish message: {0}'.format(message))
try:
c = MQTTClient(
client_id=
"smart_uv_light_umqtt_client", # if username/pwd wrong, this will throw Exception
server="192.168.1.194",
user=b"mosquitto",
password=b"mosquitto",
ssl=False)
if 0 == c.connect(): # 0 is success.
c.publish(b"smart_uv_light_status_topic", message)
c.disconnect()
else:
print('Connect to MQTT server failed. ')
except OSError as exception:
# When machine is just booted, WiFi hasn't been connected yet. Immediately invoke MQTT will throw error.
# Instead of tracking startup grace period, just keep code simple by catching and log the error.
print('publish_message encountered error {}'.format(exception))
def mqtt_conect(mqtt_conf, alarm_led, switches):
print('Connecting to Mqtt server')
mqttclient = MQTTClient(client_id,
server=mqtt_conf['server'],
port=mqtt_conf['port'],
user=mqtt_conf['user'],
password=mqtt_conf['password'])
mqttclient.set_callback(sub_cb)
try:
mqttclient.connect()
time.sleep_ms(10)
alarm_led.off()
if mqtt_conf['topics']:
for switch in switches:
topic = switch + '/feeds/lights/command'
print(topic)
mqttclient.subscribe(topic=topic)
print("Mqqt connected")
return mqttclient, False
except:
alarm_led.on()
print("Mqqt isn't connected, retry in 60 seconds ")
return False, time.time()
async def mqtt_connect():
global mqtt_client
MQTT_SERVER = PRODUCT_ID + ".iotcloud.tencentdevices.com"
MQTT_PORT = 1883
MQTT_CLIENT_ID = PRODUCT_ID+DEVICE_NAME
MQTT_USER_NAME = "你的用户名"
MQTTT_PASSWORD = "******"
# 构建对象
mqtt_client = MQTTClient(MQTT_CLIENT_ID, MQTT_SERVER,
MQTT_PORT, MQTT_USER_NAME, MQTTT_PASSWORD, 60)
# 为收到的订阅消息设置回调
mqtt_client.set_callback(mqtt_callback)
# 连接到服务器
mqtt_client.connect()
def connect(username, broker, topic, Mqtt_CLIENT_ID, PASSWORD):
client = MQTTClient(client_id=Mqtt_CLIENT_ID, server=broker, port=1883, user=username, password=PASSWORD, keepalive=10000)
try:
client.connect()
except OSError:
print('Connection failed')
sys.exit()
data = dict()
data["TempData"] = 60
data2=json.dumps(data)#convert it to json
print('connection finished')
client.publish(topic,data2)
print("Done")
time.sleep(5)
def photo_resistor():
client = MQTTClient(CLIENT_ID, SERVER)
client.connect()
sensor = ADC(0)
while True:
try:
value = sensor.read()
if isinstance(value, int):
value = str(value)
msg = value
print("Message:", msg)
client.publish(TOPIC, msg)
except OSError:
print("System Error")
# sleep(3600) # one hour
sleep(10) # for testing
def publish():
SERVER = '192.168.0.13' # MQTT Server Address (Change to the IP address of you$
CLIENT_ID = 'ESP32_DHT22_Sensor'
TOPIC = b'temp_humidity'
client = MQTTClient(CLIENT_ID, SERVER)
client.connect() # Connect to MQTT broker
dht_running = True
sensor = DHT22(Pin(
15, Pin.IN,
Pin.PULL_UP)) #DHT22 on GPIO 15 (input with internal pull up resistor)
while dht_running:
try:
sensor.measure() # Poll sensor
t = sensor.temperature()
h = sensor.humidity()
tm = time.localtime(time.time())
tmstr = '{:04d}-{:02d}-{:02d} {:02d}:{:02d}'.format(
tm[0], tm[1], tm[2], tm[3], tm[4])
print(tm)
print(t, h, tm[0])
if isinstance(t, float) and isinstance(
h, float
) and tm[0] > 2000: # Confirm sensor results are numeric
msg = (b'{0},{1:3.1f},{2:3.1f}'.format(tmstr, t, h))
client.publish(
TOPIC, msg,
retain=True) # Publish sensor data to MQTT topic
print(str(msg))
print('Sent to ' + SERVER + ' as ' + CLIENT_ID + '. Exiting.')
client.disconnect()
dht_running = False
else:
print('Invalid sensor readings.')
except OSError:
print('Failed to read sensor.')
time.sleep(5)
import machine
import math
import network
import time
import ubinascii
import uos
from umqtt.simple import MQTTClient
motd = "2018-11-24 bbq temperature"
broker = 'jarvis'
client_id = 'esp8266_'+str(ubinascii.hexlify(machine.unique_id()), 'utf-8')
print("client_id = "+client_id)
topic = 'strip/' + client_id
client = MQTTClient(topic, broker)
print("listening to ", broker, " for ", topic)
adc = machine.ADC(0)
def time_check():
publish("time check")
client.check_msg()
try:
ntptime.settime()
except:
print(".")
def frangable_publish(topic, payload):
try:
def main(server="localhost"):
c = MQTTClient("umqtt_client", server)
c.set_callback(sub_cb)
c.connect()
c.subscribe(b"foo_topic")
while True:
if True:
# Blocking wait for message
c.wait_msg()
else:
# Non-blocking wait for message
c.check_msg()
# Then need to sleep to avoid 100% CPU usage (in a real
# app other useful actions would be performed instead)
time.sleep(1)
c.disconnect()
fleet['esp8266_51333700'] = "O O OOO 5 S T " # 5
fleet['esp8266_609a1100'] = " " # 6
fleet['esp8266_7f35d500'] = "H H HHH 0 " # 5x8
fleet['esp8266_c1584a00'] = "8 8 8 8 8 8 8 8" # 3x5
segment = [[0]] * 7
for i in range(0, 7):
j = (1, 2, 3, 4, 5, 0, 6)[i]
if client_id == "esp8266_5133d500":
# publish("I'm special")
j = (5, 4, 3, 2, 1, 6, 0)[i]
segment[i] = [x for x in range(j * 21, (j+1)*21)]
segment_map = [0] * lights
display_char = last_display_char = 0
client = MQTTClient(topic, broker)
print("listening to ", broker, " for ", topic)
pallet = [
(255, 0, 0), # red
(0, 255, 0), # green
(70, 105, 0), # yellow
(170, 255, 0), # orange
(0, 0, 255), # blue
# (255, 255, 255), # white
]
char_segment_map = {
'0': 0x3F, '1': 0x06, '2': 0x5B, '3': 0x4F, '4': 0x66, '5': 0x6D,
'6': 0x7D, '7': 0x07, '8': 0x7F, '9': 0x6F, 'A': 0x77, 'b': 0x7C,
'C': 0x39, 'd': 0x5E, 'E': 0x79, 'F': 0x71,
# When using on a robot or system, you probably want to remove the
# 'From MQTT: ' part of the message.
uart.write('From MQTT: {:s}\r\n'.format(msg))
# Blink the LED every 100ms to indicate we made it into the main.py file
for _ in range(10):
time.sleep_ms(100)
led.value(not led.value()) # Toggle the LED
# Make sure the LED is off
led.high()
# Create a MQTTClient instance.
mqtt = MQTTClient(CLIENT_ID, HOST, port=PORT)
# Subscribed messages will be delivered to this callback
mqtt.set_callback(subscriction_callback)
# Connect to the MQTT server
mqtt.connect()
# Define the topic to subscribe to
mqtt.subscribe(SUB_TOPIC)
print('\nMQTT:\n Connected to: {}:{}\n Subscribed to: {:s}\n Publishing to: {:s}'.format(HOST, PORT, SUB_TOPIC, PUB_TOPIC))
try:
while True:
# This is the non-blocking method to check if there are MQTT messages
mqtt.check_msg()
# messages are being sent at a high rate
led.value(not led.value())
# Blink the LED every 100ms to indicate we made it into the main.py file
for _ in range(10):
time.sleep_ms(100)
led.value(not led.value()) # Toggle the LED
time.sleep_ms(100)
# Make sure the LED is off
led.high()
# define a time, because we only want to send every 1s but received as fast as possible
# last_time = time.time()
mqtt = MQTTClient(CLIENT_ID, HOST, port=PORT)
# Subscribed messages will be delivered to this callback
mqtt.set_callback(subscriction_callback)
mqtt.connect()
mqtt.subscribe(TOPIC)
print('Connected to {}, subscribed to {} topic.'.format(HOST, TOPIC))
try:
while 1:
#micropython.mem_info()
mqtt.wait_msg()
finally:
mqtt.disconnect()
switch = machine.Pin(5, machine.Pin.IN)
amp1r = machine.Pin(14, machine.Pin.OUT)
amp1l = machine.Pin(13, machine.Pin.OUT)
amp2r = machine.Pin(16, machine.Pin.OUT)
amp2l = machine.Pin(12, machine.Pin.OUT)
act_amp = 1
new_amp = 1
wlan_connected = 1
ap_if = network.WLAN(network.AP_IF)
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
CLIENT_ID = ubinascii.hexlify(machine.unique_id())
mqtt = MQTTClient(CLIENT_ID, MQTT_SERVER)
def connect_wifi():
global sta_if,ap_if
print('connecting to network...')
sta_if.connect(SSID,PW)
while not sta_if.isconnected():
pass
print('connection success: ', sta_if.ifconfig())
ap_if.active(False)
def connect_mqtt():
global mqtt
mqtt.connect()
mqtt.subscribe(MQTT_TOPIC)
print("MQTT connected to %s, subscribed to %s topic" % (MQTT_SERVER, MQTT_TOPIC))
Control led lights based on MQTT messages
"""
import machine
import math
import neopixel
import network
import time
import uos
from umqtt.simple import MQTTClient
pin = 4
topic = 'leds'
broker = 'jarvis'
client = MQTTClient('leds', broker)
lights = 39
np = neopixel.NeoPixel(machine.Pin(pin), lights)
def allOff():
""" Turn all the lights off
"""
print("allOff")
for i in range(0, np.n):
np[i] = (0, 0, 0)
np.write()
def startUpAllOn():
""" Turn all the lights on starting from the edges
""" Model House Light Control
Control led lights in model house based on MQTT messages
"""
import machine
import neopixel
import network
import time
import uos
from umqtt.simple import MQTTClient
topic = 'model'
broker = '192.168.1.117' #'jarvis'
client= MQTTClient('model', broker)
np = neopixel.NeoPixel(machine.Pin(4), 6)
def cycle(iterations, speed):
for i in range(0, iterations):
for i in range(0, np.n):
np[(i-1) % np.n] = (0, 0, 0)
np[i] = (10, 10, 10)
np.write()
time.sleep_ms(speed)
def diagnostic():
n = np.n
state = 1 - state
# Blink the LED every 100ms to indicate we made it into the main.py file
for _ in range(10):
time.sleep_ms(100)
led.value(not led.value()) # Toggle the LED
time.sleep_ms(100)
# Make sure the LED is off
led.high()
# define a time, because we only want to send every 1s but received as fast as possible
# last_time = time.time()
mqtt = MQTTClient(CLIENT_ID, HOST, port=PORT)
# Subscribed messages will be delivered to this callback
mqtt.set_callback(subscriction_callback)
mqtt.connect()
mqtt.subscribe(SUB_TOPIC)
print('Connected to {}, subscribed to {} topic.'.format(HOST, SUB_TOPIC))
try:
while True:
while True:
mqtt.check_msg()
if button.value() == 0: # the button is active low
break # if it's pressed break out of the internal while loop
time.sleep_ms(20)
print('Button Pressed')
mqtt.publish(PUB_TOPIC, b'Button Pressed')
def main(server="localhost"):
c = MQTTClient("umqtt_client", server)
c.connect()
c.publish(b"foo_topic", b"hello")
c.disconnect()
# timestamp
print("SETTIME")
ntptime.settime() # UTC from pool0.ntp.org
payload_t["timestamp"] = payload_h["timestamp"] = "{:0>4d}-{:0>2d}-{:0>2d}T{:0>2d}:{:0>2d}:{:0>2d}Z".format(
*time.localtime()
)
# average readings
try:
payload_t["t"] = sum(payload_t["raw_t"]) / len(payload_t["raw_t"])
payload_h["h"] = sum(payload_h["raw_h"]) / len(payload_h["raw_h"])
except:
pass
c = MQTTClient(client, broker, port=broker_port)
for _ in range(5):
try:
print("MQTT: CONNECTING ...")
c.connect()
print("MQTT: CONNECTION SUCCEEDED")
break
except:
print("MQTT: CONNECTION FAILED")
time.sleep(2)
try:
c.ping()
c.publish(topic, json.dumps(payload_t))
c.publish(topic, json.dumps(payload_h))
print("MQTT: MESSAGE SENT")