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Cartrax/security3.py
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import paho.mqtt.client as mqtt | |
import json | |
from datetime import datetime | |
import time | |
def logging(client_id): # logs | |
f = open("systemlog.txt", "a") | |
x = datetime.now() | |
string = f"{x} | {client_id}\n" # Added newline character for better formatting | |
f.write(string) | |
f.close() | |
# Open and read the file after appending: | |
f = open("demofile2.txt", "r") | |
print(f.read()) | |
f.close() # Close the file after reading | |
def on_log(client, userdata, level, buf): # Log the subscriber considering the buffer | |
print("Log: ", buf) | |
def on_publish(client, userdata, mid): | |
print("Data published \n") | |
print("Published ", mid) # Print the message id of the publisher | |
def on_message(client, userdata, msg): # Callback function for message received | |
print(f"Received message: {msg.payload.decode()} from topic: {msg.topic}") | |
def on_connect(client, userdata, flags, rc): | |
if rc == 0: | |
client.connected_flag = True # Set the flag to true once connected | |
print("Connected with result code " + str(rc)) # Check to know if we are connected to broker | |
client.subscribe("cartrax/location/data") # Subscribe to desired topics upon connection | |
client.subscribe("cartrax/moisture_sensor/data") | |
client.subscribe("cartrax/temperature_sensor/data") | |
client.subscribe("cartrax/security/data") | |
client.subscribe("cartrax/speedometer/data") | |
else: | |
print("Bad connection, returned code= ", rc) # If connection failed | |
print("Client disconnected ok") | |
def on_disconnect(client, userdata, rc): | |
if rc == 0: | |
client.connected_flag = True # Set flag to true once connected | |
print("Connected with result code " + str(rc)) # Check for connection | |
client.subscribe("cartrax/location/data") # Subscribe to desired topics | |
client.subscribe("cartrax/moisture_sensor/data") | |
client.subscribe("cartrax/temperature_sensor/data") | |
client.subscribe("cartrax/security/data") | |
client.subscribe("cartrax/speedometer/data") | |
else: | |
print("Bad connection, returned code= ", rc) # If connection failed | |
print("Client disconnected ok") | |
def on_disconnect(client, userdata, rc): | |
print("Client disconnected") | |
client.connected_flag = False # Set flag to false if disconnected | |
time.sleep(1) # Wait before retrying connection | |
client.reconnect() # Attempt reconnection | |
client1 = mqtt.Client("Thermometer") # Create an MQTT client object | |
client1.connect("broker.hivemq.com", 1883) | |
client1.on_publish = on_publish | |
client1.on_log = on_log # Set log function to print the messages | |
client1.on_message = on_message # Assign the on_message function to the callback attribute | |
client1.on_connect = on_connect # Assign the on_connect function to the callback attribute | |
client1.on_disconnect = on_disconnect | |
client1.loop_start() # Start MQTT loop | |
# Example of publishing a message | |
while True: | |
data = {"temperature": 25.5, "humidity": 60} # Sample data to be published | |
client1.publish("cartrax/temperature_sensor/data", json.dumps(data)) # Publish data to specified topic | |
time.sleep(5) # Publish data every 5 seconds (for demonstration purposes) |