Information page for Remote shutter based on yc1039 from yichip
I got this remote shutter from shopperplus(primecable) on sale for under $1.
By tearing it down, here are more information I found.
YC1039 is from YC10xx series.
Product Brief from yichip.
The PCB is exactly same from this post.
http://blog.sina.com.cn/s/blog_17861faed0102zcoz.html
and this
http://www.firocksemi.com/news_show171.html
https://www.ablic.com/en/doc/datasheet/serial_eeprom/S24C32C_64C_E.pdf
24 000
There are 5 test points and we should be connected to soc via these shown in sina post.
As for now, most dev materials (sdk, datasheet) are not publicly post online. Thus not much we can do without contact yichip.