[BK7231N/CB2S] Smart WiFi plug CSH-PLGPM-001 from BingLee/GoodGuys

Got a CSH-PLGPM-001 ($14 from BingLee/GoodGuys) .
Very easy to setup with BK7231Flasher.exe




It's very similar to the Arlec PC191.

P6 is the BL0937CF1 pin
P7 is the BL0937CF pin
P8 is the Wifi LED
P10 is the Button
P24 is the BL0939SEL pin
P26 is the Relay

Hmm I can move this post, or split it to separate thread, but can you provide a 2MB flash dump and/or OBK template config, so we know the GPIO roles?

GPIO roles can be also extracted from 2MB flash dump if you use:
https://github.com/openshwprojects/BK7231GUIFlashTool

Also, this device has two relays for one socket? So it cuts off both N and L?

p.kaczmarek2 wrote:

Also, this device has two relays for one socket? So it cuts off both N and L?

I didn't verify it, but as it's so similar to the Arlec PC191 I assumed so.

Hi,

Thanks for documenting and uploading the info on how to flash these devices.

Do you have any pointers for opening the switch? There are no screws and it appears to be plastic welded closed - I don't want to damage the device trying to open it. There are two seams on the back of the drive - one around the face where the prongs are and another on the corner of the rear edge - which one did you use to open the housing? I've attached some photos which hopefully show the two seams I have identified.

Thank you

The seam is the one in the second photo.
I used a sharp chisel and a small hammer.
You're trying to give it a shock more than cut.
It's quite easy.

Thank you very much, that did the trick. Gotta pry near the corners a bit to get them loose.