Stepper Motor Driver HR4988

Installed this in my CNC shield and the microstep resolution is noticeably smoother than what I had before. The pinout matched perfectly with my existing setup, so no rewiring was needed.

Swapped this into my 3D printer and the HR4988 chip handles the precise steps exactly as needed; the pinout matching my existing board made wiring a breeze. It's been running solid for a week now without a single skipped step.

Finally got my CNC running again after swapping in this driver — the pinout matches the old one exactly, so it was a drop-in replacement. Steps are dead quiet now and no more overheating even after an hour of continuous carving. Exactly what I needed for the price.