Where did you get the camera module(s)?
UCTronics using the Arducam Link
Model number of the product(s)?
What hardware/platform were you working on?
Raspberry PI CM4 using custom carrier board
Instructions you have followed. (link/manual/etc.)
Everything I could find online
Problems you were having?
The system was working fine using an older “rev N” version of the board. When we ordered more for production, the “N1” boards produce video, but the autofocus doesn’t work. What changes were made between the “N” boards and the “N1” boards that would affect the autofocus communications? Anything we should consider, e.g. I2C bit rate, address, etc.?