HALJIA StepStick DRV8825 Stepper Motor Driver Carrier Reprap 4-layer PCB With Heat Sink Compatible with 3D Printer Reprap RP A4988

1. Simple step and direction control interface2. Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step3. Can interface directly with 3.3 V and 5 V systems4. Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout5. Short-to-ground and shorted-load protection6. 4-layer, 2 oz copper PCB for improved heat dissipation7. Exposed solderable ground pad below the driver IC on the bottom of the PCB8. Module size, pinout, and interface match those of our A4988 stepper motor driver carriers in most respects (see the bottom of this page for more information)9. Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor¡¯s rated voltage to achieve higher step rates10. Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)11. 45 V maximum supply voltage12. Built-in regulator (no external logic voltage supply needed)Packing List:1 x DRV8825 driver module1 x Heat sink