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elmoret

3 karma · joined July 30, 2026

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elmoret··on Flume Water Monitor 915 MHz Security Is Pretty Good
> My setup is a logic analyzer tap on the SPI bus between 8266 and the RFM69 on the bridge device

I'd done exactly the same, though my efforts were pre-Claude. If you want my logs/data, username at gmail.

elmoret··on Flume Water Monitor 915 MHz Security Is Pretty Good
If you document this somewhere I'd love to read about it! I took the approach of sniffing the packets between the radio and mcu on the bridge board, got most of the way into reverse engineering that, then helped build this instead:

https://github.com/tronikos/esphome-magnetometer-water-gas-m...

But I always wanted to finish pulling flume data to home assistant, without the cloud.