Features: <br> <br>It can drive 4 channels DC motors or 2 channels stepping motors while driving 2 servos. <br>More functions, easy operation, with powerful driver library support and function updates. <br>With for reset button, up to 4 bidirectional DC motors and 4 channels PWM speed adjustment(approximately 0.5% resolution). <br>Up to 2 stepper motors with positive and negative control, single/double step control, interleaved or microstep and rotary angle control. <br>4-way H-bridge with L293D chip, each channel bridge provides 0.6A (peak 1.2A) current with thermal shutdown protection, 4.5V to 36V. <br>Pull-down resistors ensure that the motor remains stopped at power-up and is compatible for Diecimila, for Duemilanove. <br>A full set of spare parts is available for DIY fans who want to do it themselves. <br> <br>Specification: <br>Material: PCB <br>Color: As is shown on the photo <br>Quantity: 1 <br>Condition: <br> <br>Package List: <br>1 x Module1、It can drive 4 channels DC motors or 2 channels stepping motors while driving 2 servos. <br>2、More functions, easy operation, with powerful driver library support and function updates. <br>3、With for reset button, up to 4 bidirectional DC motors and 4 channels PWM speed adjustment(approximately 0.5% resolution). <br>4、Up to 2 stepper motors with positive and negative control, single/double step control, interleaved or microstep and rotary angle control. <br>5、4?way H?bridge with L293D chip, each channel bridge provides 0.6A (peak 1.2A) current with thermal shutdown protection, 4.5V to 36V.