Hello,
I want to covert an extention lead to a smart plug with power monitor. To just create a smart plug seems to be quite easy, got lot of alternatives but to add power monitor seems to be quite hard. Anyone can direct me to any board I can use?
Thanks!
B.
My idea was to use something like this:
Just with some sort of PM device integrated, I find it quite weird there are any available.
B.
Hmmh. I think the ACS712 or something similar would do. Or a power clamp around a wire. Just make sure you know what you’re doing when messing around with mains voltage. I mean most people just buy something like a Shelly. They also have variants with 2 relais. Or a smart multi-outlet power strip. There’s many options to buy. You’d have to do some extra step and look up the microcontroller in the Tasmota database, but there should be 4-outlet smart outlets including power monitoring with an ESP inside. The cheap ones seem to be around 35-45€. Tinkering with mains voltage and wanting it all exposed is a bit of a niche, I don’t know if there’s many PCBs out there. That’s mostly cheap boards with just the relais.