Songhe 3D Printer Parts DRV8825 Stepper Motor Driver Module with Heat Sink for Ramps 1.4 StepStick A4988 (5pcs)

Exactly what I was looking for, cheap boards but the ones I received were reliable. Using them to play with some NEMA 17s

Those are the real deal and work well. Packaging is a bit confusing since mine said A4988 on the bag, but the components were DRV8825s. The calibration screw is pretty sensitive and it can be hard to hit the current limit for 0.4A motors

Worked Great

Ive tried all 5 drivers in the pack I got, 4 burned out very quickly, at any current setting, the 5th never worked at all. The heatsink gets hot almost as soon as you connect the power supply. One out of 5 has a defective potentiometer. Another, out of the box, has only 2 Ohms resistance between positive and negative voltage input. You can still adjust the current, but the end points have broken, so you never really know where you are. Ive checked with an expert in how to wire these, we set the current super low, hardly any holding torque on the motor at all as a result. Yet, best we got was a few minutes of action before the thing was burned out. At least for me, they dont work.

In the past I purchased many of these cheap stepper motor controllers from a variety of sellers and gotten ripped up by receiving broken or cheap-quality modules that fall apart after integrating. With this seller, all of the pieces are I received were in excellent condition and the potentiometers on each piece were intact and resilient to adjustment. I am driving nema 17s at 2A 24v power supply I have had no issues and the product has functioned incredibly well for its price.

Arrived on time and as described.

Great QUIET stepper drivers

They drive by stepper Motors. They do it very well.

Excelente todo, 100 % recomendable.-