Connecting the dots

[phando]

Trying to get my head around the big picture. My project has a lot of moving parts and could really use a sanity check.

There are 3 Lora devices that need bidirectional communication with a central server.

With a Lora32 running OpenMQTT and an rPi running a mosquito mqtt server, will events flow freely from Lora → pi and WiFi as well as WiFi → Lora?

On my devices needing to send mqtt events over Lora, do I just include an open mqtt library or send specifically formatted Lora messages?

Thank you!

[1technophile]

Hello

@phando

With a Lora32 running OpenMQTT and an rPi running a mosquito mqtt server, will events flow freely from Lora → pi and WiFi as well as WiFi → Lora?

You could have:

1. LoRa node → OMG LoRa → MQTT broker on the Pi
2. MQTT broker → OMG LoRa → LoRa node

For 1) you can use specifically formatted LoRa messages, see examples below

OpenMQTTGateway/examples at development · 1technophile/OpenMQTTGateway

For 2) We don’t have an example yet of node receiving LoRa data to trigger an action, nevertheless you can refer to the documentation:

LoRa gateway | OpenMQTTGateway v1.7.0

[phando]

@1technophile

• LoRa node → OMG LoRa → MQTT broker on the Pi
• MQTT broker → OMG LoRa → LoRa node

Thank you, this is exactly what I am looking to-do. You worded it way better than I could type on my phone. So long as lora clients can subscribe and publish to mqtt messages and devices on the lan can subscribe and publish mqtt messages, I should be good to go. Removing the device connectivity protocol from mqtt is kind of amazing, thank you for the awesome project.