paho

MQTT question: Hi, I’m trying to set up a MQTT network between multiple Raspberry Pis (starting with two). I have one raspberry pi (RPi-A), MQTT client, with a thermistor sensor attached and one raspberry (RPi-B), MQTT broker/client, acting as a hub for my network. Through python scripting I’d like the temperature to be sent every 30mins from RPi-A via MQTT to topic sensor/data and received by RPi-B. When RPi-B receives a message from RPi-A via topic sensor/data, I want it to respond with an instruction via MQTT topic sensor/instructions to RPi-A. Below is my script, so far RPi-A can send

We're experiencing an issue with one of our MQTT subscribers in Spring integration (4.0.3.RELEASE running on Tomcat 7 with the Paho MQTT Client 0.4.0). The issue is with a subscriber on a heavily used topic (lots of messages). The devices sending the messages to the topic are devices in the field connecting over GPRS. Spring integration and the broker (Mosquitto) are running on the same server. The issue seems to appear after doing a couple of redeploys on the Tomcat without restarting the server. When the issue occurs, a restart of the tomcat instance fixes it for a while. Here's the chain of

hi I am working on IOT internet of things I am using paho MQTT I need to use SSL I wrote publish code using python I got an error in "certificate verify failed" please help me thank in advance MY PUBLISHING CODE import time import paho.mqtt.client as paho import ssl import certifi #define callback def on_message(client, userdata, message): time.sleep(1) print("received message =",str(message.payload.decode("utf-8"))) client= paho.Client("client-001") client.on_message=on_message print("connecting to broker ",) client.tls_set("C:/Windows/system32/config/systemprofile/Desktop/attachments/server

I am writing a django application which should act as MQTT publisher and as a subscriber. Where should I start the paho client and run loop_forever() function. Should it be in wsgi.py ? Update: If you need Django running in multiple threads then to publish messages from your Django app you can use helper functions from Publish module of Paho - https://eclipse.org/paho/clients/python/docs/#id17 You don't need to create an instance of mqtt client and start a loop in this case. And to subscribe to some topic consider running mqtt client as a standalone script and import there needed modules of