Long range radio Pager project

End Devices (Nodes)
4

I endorse any enthusiasm for any project, but as one needs a Facebook account to just see that page, just a few things that I assume you already considered:

  • Pagers are probably most used for emergency alerting, where long battery life and separated communication channels ensure they still work when cellular phones might not. But despite the notion of confirmed messages, LoRaWAN does not make any guarantees about delivery of messages?

  • You might need Class B?

  • How would you know which SF to use? ADR should not be used for devices that are on the move:

    4.3.1.1 Adaptive data rate control in frame header
    …
    Mobile end-devices should use their fixed default data rate as data rate management is not practical when the moving end-device causes fast changes in the radio environment.

    (Using fixed SF11 or SF12 is prohibited by the LoRa Alliance.)

  • The easiest one: if you want to send text, you’ll need some compression format.

And:

This will need a private network, I think? (For Class A downlinks, TTN will only consider the gateways that receive the uplink. With a private network it might work; the IQ inversion probably also ensures that such downlink-only gateways do not interfere with the uplinks of end-devices in their neighbourhood, but I’ve not given it much thought.)

So indeed curious about any (future) progress… :worried:

Success!