Hi, I happened to get a second hand gimbal with a SimpleBGC board inside. It works but I have no documentation to it. I want to control the gimbal and therefore I need to identify the pins on it. Could someone help me, please?

I suspect that those 3x4 pins will be inputs from the receiver, those 2x2 may be the UART or IIC.

There is a marking SimpleBGC ARM-0G on it, and a sticker M2734
Here are the pictures of the board: https://photos.app.goo.gl/e4StL4ihMw5NVSg28

I tried to google it but without luck.

Thank you