The key difference between using The Things Network and the Helium Network MQTT integration is The Things Network hosts their packet broker, while the helium network does not. Therefore, we have to setup our own packet broker, and get Helium to and TTNhabbridge to connect to it. Here are a few steps on how to do it.
1. Setup a MQTT packet broker on machine with port 1883 open to the internet. Docker is the simplest way to do it. Run the following command, changing the `<username>` and `<secret_password>` password fields to something secret :
```
docker run \
--name mosquitto \
-d \
-p 1883:1883 \
-p 9883:9883 \
-e MQTT_USERNAME=<username> \
-e MQTT_PASSWORD=<secret_password> \
cburki/mosquitto:latest
```
2. Now make Helium to speak with the MQTT broker in the earlier step. To do that, first add a label to your tracker device registration. In this case, it has been labeled `icspace26`
3. Next in your integrations tab, make a new MQTT integration. Your endpoint address should be in the format ` mqtt://<username>:<secret_password>@your-ip-or-domain.com:1883`. Your `<username>` and `<secret_password>` fields should be the same as the ones your set in step 1.
4. Next, head over to the `flows` tab and connect the label box with the mqtt integrations box. You should immediately see some data appearing on your MQTT packet broker log. This will be log data from Helium servers connecting with your packet broker. The log entries would look like this:
```
mosquitto_1 | 1650374268: New connection from 52.8.80.146 on port 1883.
mosquitto_1 | 1650374268: New client connected from 52.8.80.146 as 8fda71a3-be09-44b0-b3b0-611fb5a54de2 (p2, c0, k30, u'medad').
5. Finally, update the `ttnhabbridge.yaml` with your MQTT packet broker's address and credentials. Helium will publish incoming messages to your MQTT broker. TTNhabbridge will subscribe to your broker, repackage messages and post it on Habhub. An example `ttnhabridge.yaml` file looks like this:
