Meetoo Smartplug 16A from Aliexpress: BK7131N Chip and BL0937 Energy Measurement

I bought a cheap smart plug from Aliexpress.
It's a Meetoo Smartplug 16A. Another Tuya smart plug with monitoring.
I didn't find it on the forum.

There is nothing written on the plug. Everything is on the package.


I expected to find a CB2S inside but once opened I saw the BK7231N is on the main board. It includes a BL0937 for energy measurement on the back of the board near the relay.


I started to solder the wires. Here are the corresponding pins. And dump the openBK firmware


Here is the original firmware. readResult...-12-25.bin Download (2 MB)

Here is the json file from the webapp:



This is the original information given by GUIflashTool


Everything seems to work fine.


Hope it will help.

Max

It looks like another LSPA9 variation, but all LSPA9 I have seen so far were based on TYWE2S/WB2S/CB2S modules, but that one has BK7231 on board, interesting... at least there are still pads for TX/RX, thanks for sharing.

You are welcome and thanks for your work.
Yeah luckily the pin are easily accessible. It would have been a pain to solder directly on the chip.