First, thank you for developing such a nice board!
I wanted to use the flood_fill method, but it complains that the method is not available on the M4 - I am using an H7 plus (firmware v 3.8.0, OpenMV IDE 2.6.8)
OSError: This function is unavailable on your OpenMV Cam.
MicroPython: v1.13-r22 OpenMV: v3.8.0 HAL: v1.9.0 BOARD: OPENMV4P-STM32H743
Any ideas on what could be wrong here?