The best version of the "SilentStepStick" driver board that I've found on ebay.
This reasonably priced SilentStepStick board has an awesome oversized via pad for improved heat transfer. Seems to work great in my tests. Several of the other options on ebay have solder mask over the transfer vias, rendering them useless. Additionally the pads and headers are gold plated. A nice touch that I usually don't see for this price.
Best of all, it uses the 2208 version of the TMC driver chip, which is configurable via UART (see the SilentStepStick GitHub page for an easy to use utility) instead of having to fiddle with tiny solder bridges.
The TMC drivers themselves seem to be worthy of the hype. Homing is so silent I have to look at the printer to notice things are moving.
Highly recommended!
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