[Solved] How do you upload Tasmota to a no-name wall plug with no markings on the PCB?

Colleagues,

I have a request for people who are involved in the Tasmota and home automation thread. There is a lot of material on the web, but I wanted a switch that is touch-sensitive, without a neutral wire, has WiFi communication and can be controlled via RF 433 MHz.

I found such on "one of the popular auction sites", everything works as it should, but I would like to zap Tasmota there, but the board is not completely described. It's not a Sonoff or a more popular model, just a typical no-name.

Anybody had to deal with such a PCB? I suspect that the RX, TX, VCC and GND pins are the ones marked on the photo, but there is no marking on them.

Anybody knows how to plug in to load Tasmota into this invention?

I would be grateful for help. .

Unless you give a picture of the chip responsible for WiFi it will be difficult to answer anything. Tasmota is for ESP processors. There are also solutions for other processors to ensure compatibility with Tasmota Link .

On this first board, there is only a tiny IC marked 8A6D and an MT2513 IC (ASX 041N).

This MT2513 is more of an inverter to power the whole thing.

Added after 1 [hours] 56 [minutes]:

See if the circuit for communication is not on the other board. Next to these circuits there is a distinctive snake on the board - this is the WiFi antenna.

There is a second touch tile, here it is:
- ESP 8285
- WF 480RA (H2323)

the board marked as WIFI W6B

so I guess it connects to this touch board, but it too has no marking, which pio is RX, TX, VCC and GND .

The good news is that the ESP8285 is the same as the ESP8286 with an extra 1MB of Flash. It runs Tasmota on it. The bad news is that it may not be straightforward to program this chip. It looks very similar to this Link .

Colleague @krzbor gave the solution, the linked topic describes the programming. I'll also add, that the board with WiFi has the designation W6B, so just enter it on our site:
https://openbekeniot.github.io/webapp/devicesList.html
And immediately there is the result:
.

Super! You are a champion! Thanks for your help. I'm working!

Fellow forum members helped. A similar topic was dissected and I got a helpful link. Thanks!