Atmega 328 Datasheet/Atmega 8 Datasheet Section 3: L293D Motor Controller IC ... Hence is essential to hold E1 high for the driver to function, or simply connect enable pins to 5 volts. With Pin 1 ...

The build relies on an Arduino Uno as the brains. It’s equipped with an L293D motor driver shield to run two DC gear motors which drive the walking assemblies. Power is courtesy of a 3-cell ...