Oyep-5 PCS DRV8825 StepStick Stepper Motor Drivers for 3D Printer Electronics, CNC Machine or Robotics

I'm using these in all my prototypes that have steppers, they're just great! Motor drivers heat up when you use them, and so driver chips will go bad. Having drivers on carrier boards is really great. These ones are cheap and follow a standard layout. If you're like me and you like the Texas Instruments driver chips, these are just great.Don't forget to set to current with the trim pot BEFORE you use them. The pots are really sensitive, as expected. Don't trust that they're at a safe level, the pot will have a random setting out of the bag, and must be adjusted.