Can drive 4 DC motors or 2 stepping motors or 2 steering engine
Two 5V servo motor ports， connect to Arduino high resolution timer
Up to four two-way DC motors and each with 8-digit speed regulation (0.5% resolution)
Up to two stepping motors positive / negative control， single / double step control
L293D chip provides each bridge 0.6A current
With thermal power-off protection: 4.5V to 36V
Big wire connection terminal posts (10-22AWG)
With Arduino reset button
Compatible with Mega， Diecimila， Duemilanove