BIGTREETECH TMC2209 V1.3 Stepper Motor Driver, 2.8A Ultra Silent Stepsticks Supports UART/Step/DIR Mode for Octopus V1.1/Octopus Pro/Manta M4P/M5P/M8P/SKR V1.4 Turbo/SKR 3 Control Board 6Pcs

I am not an expert with these types of motor controllers. I first bought a Synthetos shield but was noisy. When I went to build a second device, they were out of stock so I ended up buying a CNC shield off Amazon with some other motor drivers.. It was a disaster, never worked right, was noisy when it worked, was missing steps, caught fire once, ended up shorting out and blowing up my laptop. Then I bought a set of these. I had to remove the two extra pins for diagnostics, because they were in the way of the CNC shield’s own pins. This was easily achieved by heating up the solder joints, and then pulling out the pins. With that being said, I plugged it directly into the CNC shield, and it was instantly working correctly, with no missed steps, and very quietly.. much quieter than the other motor controllers and much quieter than the G shield. I highly recommend these motor drivers

I installed these on my Anycubic mega s and low noise level and print quality is insane

Use these to run motors on peristaltic pumps for dosing my saltwater aquarium additives. Works great just using the enable, step and microstepping inputs. Love the heatsinks that come with these, wish I could find those separately to use on other components.

Bamm, just like that brought my Artillery S2 back to printing. I have to say after trying several other replacements, this one is dead silent like the original driver. Thank you! Edit: Awwww for some reason the step motor on my printer now runs backward. Boo. I think it's still a five star for someone else. I don't want to learn how to edit my firmware for this.

Reliability and quality. Great product!

Great motor drivers, convenient in this form for replacement. I was surprised that they came in full tape and reel, it makes keeping them around easy without worrying about bending legs or anything. They come with heatsinks.

Overall seems to be a good product. Took a star off because the header pin soldering job wasn’t great, stray solder on some of the posts that I had to remove with solder wick before I could connect them to anything. Documentation is a little rough. Used in a raspberry pi zero 2w project. I found a good library, TMC-2209-Raspberry-Pi 0.5.7, which also had good instructions for how to wire things up. To get the UART to work bidirectionally, connect RX on TMC to RX on pi directly. Then short the Pi RX to the Pi Tx via a 10k resistor. Would not work with MS1 and MS2 floating, have to tie them both to ground to use address 0. Works great with nema17s.

I haven't actually used them yet but look how well these things are packaged. This seems to be made by a company who cares about their product image. Kudos.