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

They work well enough. Just be aware that every DRV8825 ever made has a slight hiccup. It is not noticeable in most cases. If used in a 3D printers extruder, however, they will create zebra stripes in the walls of your prints. As long as your application does not require extremely smooth movement, they will work fine.

4 out of 5 were great. #5 emitted magic smoke and burned within 5 minutes. Oh well, they are cheap as chips so I dont expect much. I should have known something was wrong when I noticed how difficult it was to set the vref.

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.

Opened package and found them all individually wrapped in anti-static bags. Opened two and tested one dead on arrival even after adjusting potentiometer and trying on different driver ports. Opened a third one and it works fine, still have two untested but one dead on arrival. Will reach out to seller and see if they can send me another one. Will update once I get an update.

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

They are not for the faint of heart, they will give the magic if you are not careful. If you touch it wrong with a screwdriver it will break. They get pretty hot, be careful, they do the job.

Arrived on time and as described.

I bought these for my custom Eggbot controller board as an upgrade from the A4988 stepper drivers. They worked quite well driving some NEMA 17 stepper motors. Setting VREF was as easy as the A4988 cousins, as long as you remember that the potentiometer is in the opposite corner. I recommend putting the heat sinks on before using though. They can get quite warm with prolonged usage.

These stepper motors worked perfect in my SKR 1.3 for my CNC machine. One was bad in the first order, but a replacement was quickly sent and everything is working as expected.