top | item 46429412 (no title) mjochim | 2 months ago Electric meters often blink a signal LED for every X kWh, so other devices can read the signal. I'm not sure if this is used for bidirectional communications, though. discuss order hn newest bigfatkitten|2 months ago No, but they also have a separate infrared interface for this.https://en.wikipedia.org/wiki/IEC_62056 NegativeLatency|2 months ago Smart meters have a whole protocol
bigfatkitten|2 months ago No, but they also have a separate infrared interface for this.https://en.wikipedia.org/wiki/IEC_62056
bigfatkitten|2 months ago
https://en.wikipedia.org/wiki/IEC_62056
NegativeLatency|2 months ago