I want to sense if a device is ON/OFF. An oven, the washing machine etc.
Since the oven is directly wired and the washing machine does loose its programming when power gets cut, smart sockets are of no use for me.
So I though, why waste 50-60€ for something I will not use to its potential.
I was thinking about homeduino and some kind of current sensor, but struggle to find the right sensor.
I looked at the YHDC SCT-013-000 but found is analog. Since I want to use some esp8266s that I already and these are ESP-01 it has to be a digital solution. Or I have to buy an adc, which adds komplexity and cost.
But I only have to sense the on/off state, so maybe there is a way to “hack” something together that just flips an input? Like, winding a coil around the wire or something?
Or maybe there is a sensor I am not aware of that is digital?
Thanks a lot