Radomir Dopieralski created this PCA9685-based servo shield for the OpenMV machine vision board:

Servo Shield for OpenMV

OpenMV has a couple of pins that you can use for connecting servos (for example, if you want to mount it on a pan-and-tilt base), but you can’t use those if you also want to use the WiFi shield or any other shield that uses up a lot of pins. Practically the only pins left to use are the I²C ones

deshipu has shared the board on OSH Park: