Overview

Arduino is a great starting point for electronics, and with a motor shield it can also be a nice tidy platform for robotics and mechatronics. Here is a design for a full-featured motor shield that will be able to power many simple to medium-complexity projects.

Features

• Contains two L293 motor drivers and one 74HC595 shift register.

• Drive for 2 Servo motors

• 8 half-bridge outputs for 2 stepper motors

• 4 H-Bridges: L293D chipset provides 0.6A per bridge (1.2A peak) with thermal shutdown protection, 4.5V to12V

• Pull down resistors keep motors disabled during power-up

• 2-pin terminal block to connect external power, for seperate logic/motor supplies