I added the ATmega168 microcontroller to the board. Note that the dimple is pointing to the left. This is important, as the standard orientation and lead numbering of a DIP package shows that pin ...

A 12-bit encoder tells the microcontroller where the motor is and the output drivers can handle over 3 A of motor current. The microprocessor is a tried-and-true ATmega328. [Dejan] wanted to make ...