Simple step and direction control interface with shorttoground and shortedload protection for safe, easy wiring and reliable operation. Five microstep resolutions for precision and smooth motion: fullstep, halfstep, quarterstep, eighthstep, and sixteenthstep. Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay) to optimize torque, efficiency, and motor performance. Robust protection features: overtemperature thermal shutdown, undervoltage lockout, and crossovercurrent protection to safeguard the driver and motor. Easy integration and compatibility: designed to work with standard step and direction control signals, suitable for a wide range of stepper motor projects and systems. Performance and reliability: precise motion control across multiple stepping modes, with builtin fault protections to minimize risk during operation. Use scenarios: Desktop CNC machines and automated milling or routing setups requiring reliable axis control. 3D printers and extruder/axis movements where smooth, quiet operation and precise positioning are important. Robotic arms or gantry automation needing dependable stepper drive with protective features to prevent damage from faults. At a glance: Step interface: simple step and direction input Protection: shorttoground, shortedload, overtemperature, undervoltage, crossovercurrent Step options: full, half, quarter, eighth, sixteenth Current decay: intelligent chopping control selects fast or slow decay automatically