1、It can drive 4 channels DC motors or 2 channels stepping motors while driving 2 servos. 2、More functions, easy operation, with powerful driver library support and function updates. 3、With for reset button, up to 4 bidirectional DC motors and 4 channels PWM speed adjustment(approximately 0.5% resolution). 4、Up to 2 stepper motors with positive and negative control, single/double step control, interleaved or microstep and rotary angle control. 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. Features: It can drive 4 channels DC motors or 2 channels stepping motors while driving 2 servos. More functions, easy operation, with powerful driver library support and function updates. With for reset button, up to 4 bidirectional DC motors and 4 channels PWM speed adjustment(approximately 0.5% resolution). Up to 2 stepper motors with positive and negative control, single/double step control, interleaved or microstep and rotary angle control. 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. Pull-down resistors ensure that the motor remains stopped at power-up and is compatible for Diecimila, for Duemilanove. A full set of spare parts is available for DIY fans who want to do it themselves. Specification: Material: PCB Color: As is shown on the photo Quantity: 1 Condition: 100% Brand New Package List: 1 x Module