rtl_433_ESP
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NorthernMan54
Can rtl_433_ESP be used/adapted to read smart meters at center frequency ~912MHz (902-928MHz industrail band) similar to rtlamr project
Current Situation
Will rtl_433_ESP work (or can it be adapted) to decode smart meter messages on the ~912MHz frequency range? This can be done on Windows/Linux using rlt_sdr dongles with the rtlamr software https://github.com/bemasher/rtlamr. It would be great to do this on an esp32 rather than having to use a "bigger" separate PC/RPi device.
Proposed Change
Add rltamr support to rtl_433_ESP
Additional Context
Assuming it is possible, do you think the LilyGo LoRa32 V2.1_1.6 dev board with 915MHz crystal [Q211 or maybe Q212] would work?
This from my 915Mhz Lilygo board ( I'm not sure if its a Q211 or Q212, but I don't think it makes a difference, as the difference appears to be just the prepackaged firmware ). So 912Mhz should be supported
The challenging part here would be the signal decoder, as rtlamr is written in GO and it would need to rewritten in C to support the ESP32 chip. Which is a massive task. With the rtl_433 port it was pretty straightforward as it is written in C already. Personally I think you should just get a RPI 4/5 with the rtl_sdr dongle and use that.
The challenging part here would be the signal decoder, as rtlamr is written in GO and it would need to rewritten in C to support the ESP32 chip. Which is a massive task. With the rtl_433 port it was pretty straightforward as it is written in C already. Personally I think you should just get a RPI 4/5 with the rtl_sdr dongle and use that.
This is how I am doing it now but I was hoping to streamline things and reduce size/power consumption/complexity by just using an esp32 board. BTW, I now have the rtl_433 working great on my lilygo board and it's awesome so far...