You are reading a single comment by @JohnO and its replies.
Click here to read the full conversation.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@JohnO
Does the HLW8012 chip perhaps have the ability to measure the AC frequency? Or perhaps has someone looked at adding a little something to the Sonoff Pow2 that could do the job?