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Added additional examples.
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@ -249,8 +249,20 @@ Step three: install Node-RED plug-ins to your node-RED application for an embedd
https://flows.nodered.org/node/node-red-contrib-aedes https://flows.nodered.org/node/node-red-contrib-aedes
https://flows.nodered.org/node/node-red-contrib-protobuf https://flows.nodered.org/node/node-red-contrib-protobuf
Drag, drop, and wire the nodes like this. For this example, I ran node-RED on a Windows machine. Note that file paths might be specified differently on different platforms. MQTT server wild cards are usually the same. A "+" is a single level wildcard for a specific topic level. A "#" is a multiple level wildcard that can be used at the end of a topic filter. The debug messages shown are what happens when the inject button sends a json message with a topic designed to be picked up by the specified Meshtastic device and then having it resend the message by both radio and MQTT. Drag, drop, and wire the nodes like this. For this example, I ran node-RED on a Windows machine. Note that file paths might be specified differently on different platforms. MQTT server wild cards are usually the same. A "+" is a single level wildcard for a specific topic level. A "#" is a multiple level wildcard that can be used at the end of a topic filter. The debug messages shown are what happens when the inject button sends a json message with a topic designed to be picked up by the specified Meshtastic device and then having it rebroadcast the message.
[<img src="/documents/mqtt/NodeRedTwo.jpg" style={{zoom:'50%'}} />](/documents/mqtt/NodeRedTwo.jpg) [<img src="/documents/mqtt/NodeRedTwo.jpg" style={{zoom:'50%'}} />](/documents/mqtt/NodeRedTwo.jpg)
[<img src="/documents/mqtt/NodeRedThree.jpg" style={{zoom:'50%'}} />](/documents/mqtt/NodeRedThree.jpg) [<img src="/documents/mqtt/NodeRedThree.jpg" style={{zoom:'50%'}} />](/documents/mqtt/NodeRedThree.jpg)
[<img src="/documents/mqtt/NR_nodes.jpg" style={{zoom:'50%'}} />](/documents/mqtt/NR_nodes.jpg) [<img src="/documents/mqtt/NR_nodes.jpg" style={{zoom:'50%'}} />](/documents/mqtt/NR_nodes.jpg)
The aedes broker must be set up on the same flow as the other nodes. By activating the Publish debug node, you can see all the published messages.
[<img src="/documents/mqtt/Broker1.jpg" style={{zoom:'50%'}} />](/documents/mqtt/Broker1.jpg)
Receiving a json mqqt message is very simple.
[<img src="/documents/mqtt/Consume.jpg" style={{zoom:'50%'}} />](/documents/mqtt/Consume.jpg)
Injecting a json message to be sent by a device is also very simple. You do need the correct enevelope.
[<img src="/documents/mqtt/Inject.jpg" style={{zoom:'50%'}} />](/documents/mqtt/Inject.jpg)
Forwarding a text message from one device, through a broker, to another broker/device/channel would look like this.
[<img src="/documents/mqtt/Forward.jpg" style={{zoom:'50%'}} />](/documents/mqtt/Forward.jpg)
If you want to decode text and position messages without json, it gets complicated:
[<img src="/documents/mqtt/Decode.jpg" style={{zoom:'50%'}} />](/documents/mqtt/Decode.jpg)