Arduino is agreat starting point for electronics, and with a motor shield it can also be anice tidy platform for robotics and mechatronics. Here is a design for afull-featured motor shield that will be able to power many simple tomedium-complexity projects.
2 connections for 5V 'hobby' servos connected tothe Arduino's high-resolution dedicated timer - no jitter! Up to 4 bi-directional DC motors with individual 8-bitspeed selection (so, about 0.5% resolution) Up to 2 stepper motors (unipolar or bipolar) withsingle coil, double coil, interleaved or micro-stepping. 4 H-Bridges: L293D chipsetprovides 0.6A per bridge (1.2A peak) with thermal shutdown protection, 4.5V to12V Pull down resistors keepmotors disabled during power-up Big terminal block connectorsto easily hook up wires (10-22AWG) and power Arduino reset button broughtup top 2-pin terminal block toconnect external power, for seperate logic/motor supplies Tested compatible with Mega,Diecimila, & Duemilanove 附件程式在arduino-022版本使用,需要在其它版本上運行,可能需要修改標頭檔
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