====== Node Registration ====== To report packets from a receiver to OpenTrafficMap.org, the data must be sent to our MQTT server. The connection string can be found here: [[https://codeberg.org/opentrafficmap/its-g5-receiver-firmware/src/commit/5ba2a0303bf83daea93546cbbf7e311d4516d7ba/main/config.c#L138|/its-g5-receiver-firmware/main/config.c]] No username or password is required for the MQTT server. By default, the node name is the Ethernet MAC address of the ESP32. We are happy to replace it with a friendly name in our database and, on request, we can also display the receiver on the map with GPS coordinates. If you received a receiver through our group order, a QR code with a link to the self-service portal is included (the link is also included in the shipping e-mail). There you can adjust the LED brightness, reboot the node, and view its messages on MQTT. If you built a receiver yourself, just send us the MAC address by e-mail and you will receive access credentials. The self-service portal also provides credentials that allow you to subscribe to the messages of your own node. {{ ::node_self_service.png?800 |}} With **User Password** you can protect the self-service portal of your node; without the password, it can no longer be accessed. If you enable **Show on map** and enter coordinates, your node will be shown to everyone on the map. The self-service portal also offers a heatmap: {{::heatmap_self_service.png?800|}}