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Braydon Fuller 2y ago

I almost already have this built.

It only reads temperature, barometric pressure and humidity. It's for refrigeration equipment, currently.

It also isn't Nostr yet, however it's all event based using MQTT messaging with a RabbitMQ server in an internal network.

Adding signatures to the events was going to be my next step and this could be done using Nostr.

It would be interesting to compare the two protocols.

Also want to extend with LoRa to add to the existing LTE-M modems and ethernet connectivity.

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ElectronicMonkey 2y ago

MQTT seems like machine-only messaging to me. integrating IOT to nostr relays will be like mixing both human and machine messaging together, sounds fun.

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Braydon Fuller 2y ago

Yeah, it may be best to use both protocols. MQTT for the raw sensor data and Nostr events sent as periodic aggregate updates and alerts rather than as raw sensor data.

For my refrogeration project, for example, the MQTT sensor events are sent every 30 seconds. I use the quality of service setting 1 (at least once) otherwise sensor events are dropped, even with a direct ethernet connection.

Another program subscribes to the events and then sends reports and alerts via email and SMS over LTE-M and ethernet. Nostr could be an additional delivery mechanism.

Would Nostr also be useful for the raw sensor data?