I obtained an A9 mini camera which has a chip that I have not seen mentioned here yet: TXW806-840
I wasn’t able to find a datasheet for this chip.
This chip is from TaiXin Semiconductor. taixin-semi com
Downloads are passwd protected:
https://www.taixin-semi.com/Product?prouctSubClass=50
I got that camera from here:
https://www.aliexpress.com/item/1005003801159363.html
The App that is mentioned to use is YsxLite
In AP mode the SSID I see is: BATC-503023-XLUXU
Some one pictures from the inside:
I also tried to connect a serial connection, but wasn’t able to get any response from the camera.