Just having a look at making an energy display that shows more data than the basic display provided with the meters.
I have seen a few people using the IR serial ports on meters to get usage data but this seems a bit dumb when the meters use bluetooth.
I want to read both gas and electric meters.
Anyone done this?
Depends on the type; which brand and model do you have?
Our smart meter doesn't have bluetooth; it sends out data over an inverted UART port. I hooked up an ATtiny board to it with an NRF24 module, powered from the smart meter port, and that links up with an ESP32 base station with an ePaper display.
I'd forego the NRF24 in a future version but I opted for it because it's low power and officially we can only draw something like 100mA from the smart meter port on these types, so WiFi wasn't an option.
Have a look at the API’s supplied by your energy supplier - you can get data there for you own meter, billing too!
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