Generic لوحة تحكم محرك خطوي 7A19 3D Printer Stepstick Drv8825 Reprap 4 PCB Board بديلة عن A4988

Simple step and direction control interface; Six different step resolutions (full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step); Can interface directly with 3.3 V and 5 V systems; Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout; Short-to-ground and shorted-load protection; 4-layer, 2 oz copper PCB for improved heat dissipation; Exposed solderable ground pad below the driver IC; Module size, pinout, and interface match A4988 stepper motor driver carriers; Adjustable current control with potentiometer; Intelligent chopping control (fast decay or slow decay); 45 V maximum supply voltage; Built-in regulator (no external logic voltage supply needed)

Operates between 8.2V and 45V. For currents above 1.5A per phase (up to 2.2A per coil), sufficient additional cooling (heat sink or forced air flow) is required. Features protection against over-temperature, over-current, under-voltage, short-to-ground, and shorted-load. Maximum supply voltage is 45V. Current output can be adjusted via a potentiometer.

US