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. · 2 connections for 5V 'hobby' servos connected to the Arduino's high-resolution dedicated timer - no jitter! · 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 seperate logic/motor supplies · Tested compatible with Mega, Diecimila, & Duemilanove · 附件程序在arduino-022版本使用,· 需要在其它版本上运行,· 可能需要修改头文件