Equipment Description: 4 H-Bridges: TB6612 chipset provides 1.2A per bridge with thermal shutdown protection, internal kickback protection diodes. Can run motors on 4.5VDC to 13.5VDC. 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. Big terminal block connectors to easily hook up wires (18-26AWG) and power. Polarity protected 2-pin terminal block and jumper to connect external 5-12VDC power. Works best with Raspberry Pi model A+, B+, or Pi 2, but can be used with a model A or B if you purchase a 2×13 extra-tall header and solder that instead of the 2×20. Install the easy-to-use Python library, check out the examples and you’re ready to go!