Most of the sources use MQTT Paho python library for uplink messages. I want to know whether I can send the downlink messages using this library.

Yes. See the source code of the (deprecated) Python SDK; https://github.com/TheThingsNetwork/python-app-sdk/blob/master/ttn/ttnmqtt.py

By the way: you might want to define the logging callback, as Paho tends to swallow many exceptions in callbacks . When looking at the (deprecated) TTN SDK , add something like: import logging import paho.mqtt.client as mqtt ... class MQTTClient: ... def connect(self): self.__client.…

Thanks Arjan. Concerning the downlinks. In order for me to work with Class C devices that means I have to setup the private network since, it is not supported on public network? Would be the same library still be compatible?

Do you already have your downlinks working with MQTT? since the ttn sdk for python is discontinued if there is a good way to create downlinks with something like paho, receiving uplinks works fine, but I can’t seem to find a way to create downlinks.

Welcome, but please don’t bump multiple old topics with the same question. I’ve removed your other post. Also, a link to a reference solution (in the code of the deprecated SDK) has been provided in this very topic. So: what is not working for you? See also a simpler (but quite specific) working e…

Hello Arjan, sorry for the multiple bumps but I found the other topic later and maybe it had more in common with my “issue”. It is fairly simple I guess but I can’t seem to get a downlink on my TTN application data, when I simulate an uplink I will get it in my python application using paho, but I c…

Hello Arjan, I think what i’m just wandering if it is possible and how is it possible to publish a message on my ttn application schedule ready for being downlinked. I’m not very familiar with Python and even less so with TTN but what I want to do is a mosquitto like operation like: mqttc.publish…

I know this is an old thread but since it took me a while to figure it out - here my solution: !/usr/bin/python3 -u import paho.mqtt.client as mqtt import json import time import d…

[image] gnsbglora: I know this is an old thread but since it took me a while to figure it out - here my solution: Please take a moment to properly format your post!

Has anyone used mqtt paho python library to send downlink message to the end device?

Application Development

kersing (Jac Kersing) February 23, 2021, 4:30pm 12

Please take a moment to properly format your post!