tmc2209_devboard's Introduction

TMC2209 Development Board for Arduino Uno

A development board to test the Trinamic TMC2209 stepper motor controller on an Arduino Uno.

This board should cover all options and IOs that Trinamic provides for its TMC2209.

Facts:

All TMC2209 pins are connected to digital pins of the Arduino.
XT30 power connector
voltage source selector Arduino VIN or XT30
TVS diodes on 5v and 28V lane of the TMC2209
different wiring schemes for the JST motor connector (because getting the right phases is not easy apparently!)
different current setting selectable with solder bridges (or custom resistor also possible)
motor voltage sensing via voltage divider on A0
reset button for Arudino + power LED

KICAD and production files for JLCPCB are also included. Code will follow. Production cost incl assembly is around 50€ for 5pcs. THT components not included.

Feedback is very welcome!

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tmc2209_devboard's Issues

add nema17 screw spacing

It should be possible to connect a nema17 motor to the PCB with four m3 screws in a 31x31mm spacing.

Motor power source incorrect

VIN and EXT power labels are incorrect (switched)

The csv file that JLCPCB uses for the Assembly process appears to have an error in it. When I submitted the Production ZIP file I got an error because they want the last two columns of the file to be Layer and then Rotation. The existing file has them switched. It was an easy edit, but since this was my first time ordering an Assembly, it confused me for a little while.

Also huge thanks to you for creating this project. As you said the price for 5 assembled boards is just over $50 with 1/3 of that being shipping. The other problem was that they were out of the current sense resistors, so I'll order them from DigiKey and solder them by hand.

Really excited to try them out.

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