I purchased a tinyg v8 board for an educational CNC project and it worked
fine at first. before a couple of days, Motor Driver 2 stopped working and the
indicating led D10 for motor 2 is not flashing when energizing the motors,
while the others work perfectly fine. I reset the factory settings but nothing
changed. the board was used just for few number of times. After the driver
went down the CPU started to heat up very fast and more than usual. now only
3 motor drivers are working.