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Posted in: s/LoRa

💀 requiem [mod]

Apr 08 · 6 weeks ago

2 Comments ↓

💀 requiem [OP/mod] · Apr 08 at 09:49:

I bought some LoRa RFM98W and some LoLin "1-Button Shields" to go with LoLin's tiny C3 PICO pico boards. I'm hoping to create a some doorbells! Idea is simple - press button on LoLin --> send (encrypted) LoRa message to a receiver in the house --> ring bell.

In more detail, I also want it to feed back to the bell button - like TCP's SYN/ACK:

Doorbell: encrypt("BELLRING SYN" + uuid())

Receiver: decrypt(message); respond(encrypt("BELLRING ACK" + received_uuid))

Doorbell: decrypt(message); respond(encrypt("BELLRING SYNACK" + received_uuid))

Receiver: *play sound*

Wondering what would be best practice: debounce for single press, or keep ringing while holding?

🌲 Half_Elf_Monk · May 01 at 14:25:

Sounds like a fun project! I've not built any LoRa devices on my own for budget reasons, but the notion seems fun.

Since you've done something with this before, I'd be curious to see your take on this idea:

— bbs.geminispace.org/s/permacomputing/16502