@Nca78 So that I don't have to run a radio link and an esp elsewhere

But my post was really about the switching regulator.

Guys, I see a lot of struggle trying to get devices powered from these switches. Maybe I missed it, but has anyone tried replacing the 3.3v regulator in the switch? I replaced mine with a switched-mode version, which gives you a lot more power to play with. The original linear regulators effectively have a 8.7v drop across them.

With that + a livolo LED adapter I've managed to get a ESP8266 powered on as little as 2x 13W LED bulbs (I've tried 2x 10.5W and it doesn't work). I've tried some of the jumpers people have posted here to get more power, but I'm unsure if they help.

@wallyllama said in livolo Glass Panel Touch Light Wall Switch + arduino 433Mhz:

On a side note I have a regular, 2way, and remote switch, all the same revision and all US style, and from what I can tell the difference for 2way is a diode (d2) and a resettable fuse (r10). It lookes like there is basically a primative modem that sends/recieves the same data as the radio. (The radio is receive only, but 2 way has to be, well 2 ways). The "modem" is connected to "B" and "A" is connected to live and "gnd", which is why I think the dc voltage sort of floats on the ac.

I have tried adding these parts to a non-2-way switch and used it as 2-way but it's not working. I suspect the firmware is different? I have managed to get an ESP8266 powered from the switch in some cases, so I could make a switch 2-way with software. But the livolo switch will not stay on without a load connected (if you have no light connected to the 2nd switch on a 2-gang).