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Update readme to clarify topic subscriptions (#21, #22)

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Brian Shea 2024-09-15 17:06:08 -04:00 committed by GitHub
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@ -21,11 +21,15 @@ If your node can be heard by another node already reporting to MQTT, that's it!
#### Important update as of August, 2024 #### Important update as of August, 2024
Meshtastic has [made a change to their MQTT server](https://meshtastic.org/blog/recent-public-mqtt-broker-changes/): Meshtastic has [made a change to their MQTT server](https://meshtastic.org/blog/recent-public-mqtt-broker-changes/):
> Only position packets with imprecise location information [10-16 bits] will be passed to the topic, ensuring that sensitive data is not exposed. > Only position packets with imprecise location information [10-16 bits] will be passed to the topic, ensuring that sensitive data is not exposed.
Additionally, only the default [LoRa region](https://meshtastic.org/docs/configuration/radio/lora/#region)-based root topics (and all subtopics) are now monitored.
#### To enable MQTT reporting #### To enable MQTT reporting
- Enable the MQTT module, using all default settings, possibly with a custom root topic - Enable the MQTT module, using all default settings, possibly with a custom root topic
- View nodes around your area on the map to find MQTT topics being used - View nodes around your area on the map to find MQTT topics being used
- Only the official [LoRa region](https://meshtastic.org/docs/configuration/radio/lora/#region)-based root topics (and all subtopics) are monitored
- Configure your node to connect to wifi or otherwise connect to the internet - Configure your node to connect to wifi or otherwise connect to the internet
- Enable MQTT uplink on your primary channel - Enable MQTT uplink on your primary channel
- It is not necessary, and not recommended unless you know what you're doing, to enable MQTT downlink - It is not necessary, and not recommended unless you know what you're doing, to enable MQTT downlink