The board is grounded through the motor ports as well. I have the 3 wires for motor D3 attached to the ESC Gnd, the PDB 5V and the ESC PWM. I’ve sent images in the zip attached.
Archive.zip (7.3 MB)
I think we will need to replace the PCB but i don’t see the failure.
Since you tell me it was working when you loaded the first “test sensor” sketch.
The main sensor chip (accelerometer / magnetometer / gyroscope) is not communicating.
That’s why you get all the errors and no movements.
This topic was transferred to internal RobotShop Support.