I’ve recently completed the construction of the cube, plugged in a 9v battery and nothing happened. Do I also need to connect the USB for it to work? Is the battery insufficient current or have I done something fundamentally wrong?
It should work with the 9V. Can you post high resolution pictures of your kit (top and bottom of the PCB’s) So we can check if anything is wrong.
Sincerely
Ive sorted the problem, it was a bad joint on one of the smd chips. However my upload/ download buttons are blocked when trying to upload a custom design, any ideas? My o/s is xp