- Pull-down resistor keeps outputs in the off state on power-up, preventing unintended motor movement and improving safety. - Large terminal blocks support wiring with 10-22 AWG wires, simplifying power connections and reducing wiring errors. - Dual H-bridge driven by the L293D chip provides 0.6 A per bridge (1.2 A peak) with a wide operating range of 4.5 V to 36 V and built-in thermal shut-off protection. - Up to 2 stepper motors can be driven in forward and reverse, with single/double step control, step or micro step control, and angle control via the 4-way H-bridge. - This module is a commonly used continuous motor driver based on the L293D IC; pins are designed for compatibility to aid hobbyist and developer projects. - Two 5 V servo ports are provided for high-resolution, high-precision servo timing and control. - The board supports up to 4 bidirectional DC motors and 4 PWM control outputs, with an approximate PWM resolution of 0.5%. - Compatibility and practicality: designed for easy integration with common microcontroller platforms and development workflows, enabling straightforward experimentation and project expansion. - Use scenarios: - Build an XY positioning system or small CNC-style router that uses two stepper motors for precise linear motion. - Create a compact robotic vehicle with four DC motors and PWM speed control, plus a servo-based gripper or sensor mechanism. - Assemble a pan/tilt camera rig or small robotic arm using the two servo ports for precise angular movement.