Arduino Shield – L293D Motor Driver Shield

Description

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

• 2 connections for 5V servos connected to the Arduino’s high-resolution dedicated timer – no jitter!
• Compatible with Arduino Mega2560 & Arduino UNO.
• Up to 4 bi-directional DC motors with individual 8-bit speed selection (so, about 0.5% resolution).
• Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil, interleaved, or micro-stepping.
• 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.
• Big terminal block connectors to easily hook up wires (10-22AWG) and power.
• Arduino reset button brought up top.
• 2-pin terminal block to connect external power, for separate logic/motor supplies.