# TMC2208 with cnc shield v3 and arduino uno to run NEMA 17 motor

**URL:** <https://forum.arduino.cc/t/tmc2208-with-cnc-shield-v3-and-arduino-uno-to-run-nema-17-motor/1313983>\
**Category:** Motors, Mechanics, Power and CNC\
**Created:** [October 22, 2024, 11:14am UTC](https://forum.arduino.cc/t/tmc2208-with-cnc-shield-v3-and-arduino-uno-to-run-nema-17-motor/1313983 "2024-10-22T11:14:12Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![luciipuki2000](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/luciipuki2000/32/1114294_2.png) [@luciipuki2000](https://forum.arduino.cc/u/luciipuki2000)\
**Post date:** [October 22, 2024, 12:15pm UTC](https://forum.arduino.cc/t/tmc2208-with-cnc-shield-v3-and-arduino-uno-to-run-nema-17-motor/1313983/3 "2024-10-22T12:15:36Z")

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yeah ive looked into that if you mean this [one](https://forum.arduino.cc/t/stepper-motor-at-a-constant-speed-of-60-rpms-using-the-tmc2208-uart/1219312). I think mine might be different because I already have the resistor soldered across my UART output.

 ![resistor](https://europe1.discourse-cdn.com/arduino/original/4X/c/e/c/cec1f6879e4ac24194041f7303446e18cfc6bbd6.jpeg)

Do I still need to split the cable and add a resistor to the tx cable?  
if not then something must be wrong with my code.

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