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Merge pull request #1121 from ianmcorvidae/patch-3

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Update MQTT docs for the topic containing 'e'
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rcarteraz 2024-03-14 07:09:07 -07:00 committed by GitHub
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docs/software/integrations/mqtt/index.mdx
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@ -40,9 +40,9 @@ For each channel where uplink and/or downlink is enabled, two other topics might
#### Protobufs topic
A gateway node will uplink and/or downlink raw ([protobuf](https://developers.google.com/protocol-buffers)) MeshPackets to the topic:
`msh/2/c/CHANNELNAME/USERID`, where `CHANNELNAME` is the name of the channel.
`msh/2/e/CHANNELNAME/USERID`, where `CHANNELNAME` is the name of the channel (firmware versions prior to 2.3.0 will publish to a topic with `/c/` in the place of `/e/`).
For example: `msh/2/c/LongFast/!abcd1234`
For example: `msh/2/e/LongFast/!abcd1234`
The payload is a raw protobuf, whose definitions for Meshtastic can be found [here](https://github.com/meshtastic/protobufs/blob/master/meshtastic). Reference guides for working with protobufs in several popular programming languages can be found [here](https://protobuf.dev/reference/). Looking at the MQTT traffic with a program like `mosquitto_sub` will tell you it's working, but you won't get much useful information out of it. For example: