Stepper motor driver A4988 + heatsink robot self balancing 3D print CNC
Features:
1. Simple step and direction control interface 2. Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step 3. Can interface directly with 3.3 V and 5 V systems 4. Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout 5. Short-to-ground and shorted-load protection 6. 4-layer, 2 oz copper PCB for improved heat dissipation 7. Exposed solderable ground pad below the driver IC on the bottom of the PCB 8. 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 rates 9. Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay) 10. 45 V maximum supply voltage 11. Built-in regulator (no external logic voltage supply needed) there is a sticker on the heat sink