Wanted: Source for ESP8266/ESP32 modules that run from 220VAC

[Psi]

So I'm looking for sources of ESP8266 / ESP32 modules with build in 220V mains power supplies and are small enough to find inside walls.
Has anyone seem something like this available for a reasonable price.

What else the module does or it's intended use don't really matter as i will be reflashing them with ESPHome firmware and all i need for I/O is a single GPIO to a push button switch on it.

I'm automating my home and have all the room lighting sorted but need a solution for all the wall mount push buttons to control things.

Thanks.

[toastedcrumpets]

You could buy any of the sonoff modules, either switches or a relay module. They have custom firmware support through tasmota too.

[Psi]

yeah, sonoff is one option.

[leromarinvit]

Sonoff stuff would certainly work. The ones I've seen are rather large though. If space is tight, a Shelly 1 might be easier to fit. It contains an ESP8266 and works fine with Tasmota.

[Psi]

I'm also looking at what it would cost to make my own units using some of those potted 220VAC-3.3V power blocks.

You can get proper fully certified ones for NZ$10  (US$6)
https://nz.element14.com/vigortronix/vtx-214-002-103/power-supply-ac-dc-3-3v-0-6a/dp/2517749

Or potentially less safe china ones for a few dollars
https://www.aliexpress.com/item/32953877034.html


If i can find a small case with removable side panel on each end for some terminal blocks i could make my own PCB with ESP module and one of those bricks.
It really doesn't need much on the PCB other than ESP8266,  mains 3.3v psu,  some filter caps, and a few terminal blocks for mains and GPIO.
So total cost is probably NZ$30 not including my time.
It might be a bit more flexible.