[BK7231N/CB2S] Anslut IP44 16A Smartplug 52153X36 "WiFi-Adapter with energy meter"

Anslut devices are usually re-branded generic Tuya for sale by Jula in Sweden.

Device information:
Chip: BK7231N
Board: CB2S
Energy monitor: BL0942

This device is Class IP44, suitable for outside use or in a bathroom, but not totally watertight. After disassembly, the device must be re-sealed with a suitable sealant to prevent an electrical hazard.



Disassembly is most easily achieved by using a "spudger", flexible blade or similar tool to pry open the top, starting at the corner opposite the power-button (there is no holding-clip there) and working your way round, breaking the seal.





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I successfully flashed two of these with a generic FTDI-USB programmer, using the power from the programmer itself: one by desoldering the chip and one by soldering dupont pins in-circuit. The in-circuit flash required the baud rate to be dropped to 115200. Starting the flash and cycling the power by dis/re-connecting the power lead.

The BL0942 Energy monitor chip is self-calibrating, so I assume the power usage figures are correct.

The extracted Tuya config did not work out-of-the-box, but here is the working config.

https://github.com/OpenBekenIOT/webapp/pull/165

I have similiar plug. I happened to run it without PowerSave and then I had to replace the low-ESR capacitor, just like in this topic:
https://www.elektroda.com/rtvforum/topic3898805.html
But that one has BL0942, so there should be no issues with PowerSave, just remember to enable it.

PS: Those devices can make nice graphs, here is my PC socket: