Features 1、2 interface for 5V Servo connected to the high‑resolution dedicated timer ‑ no jitter. 2、Can drive 4 DC motors or 2 stepper motors or 2 Servo. 3、Up to 4 bi‑directional DC motors with individual 8‑bit speed selection. 4、Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping. 5、4 H‑Bridges: per bridge provides 0.6A (1.2A peak current) with thermal protection. Specification Features: 2 interface for 5V Servo connected to the high-resolution dedicated timer - no jitter. Can drive 4 DC motors or 2 stepper motors or 2 Servo. Up to 4 bi-directional DC motors with individual 8-bit speed selection. Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping. 4 H-Bridges: per bridge provides 0.6A (1.2A peak current) with thermal protection. Pull down resistors keep motors disabled during power-up. Built In Reset Button. 2 external terminal power interface, for separate logic/motor supplies. Specification: Current: ≤1A PCB size: 6.7*5.3cm / 2.64*2.09in Package list: 1 * Motor Drive Shield Expansion Board Package List