# TMC2208 V3 UART on RUMBA Board - Raise3D N2

**URL:** <https://klipper.discourse.group/t/tmc2208-v3-uart-on-rumba-board-raise3d-n2/6740>\
**Category:** General Discussion\
**Created:** [February 18, 2023, 10:45am UTC](https://klipper.discourse.group/t/tmc2208-v3-uart-on-rumba-board-raise3d-n2/6740 "2023-02-18T10:45:16Z")\
**Posts on this page:** 1\
**Showing post:** 9

<div class="post-metadata">

**Author:** ![Sineos](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/sineos/32/18_2.png) [@Sineos](https://klipper.discourse.group/u/Sineos)\
**Post date:** [February 19, 2023, 11:14am UTC](https://klipper.discourse.group/t/tmc2208-v3-uart-on-rumba-board-raise3d-n2/6740/9 "2023-02-19T11:14:28Z")

</div>

See, this is exactly what I meant: It usually ends up in a holy mess to sort it out.  
Some general remarks:

- Leave these `driver_*` alone. You usually do not need to set anything here
- do not use `hold_current`
- `run_current` depends on your motors. See [Hold\_current and run\_current -- TMC2209 - #5 by Sineos](https://klipper.discourse.group/t/hold-current-and-run-current-tmc2209/1171/5)
- For UART I would go for the single wire UART method. See [https://www.angelrojasjr.com/2021/09/25/upgrading-flsun-qq-s-pro-to-tmc2209/](https://www.angelrojasjr.com/2021/09/25/upgrading-flsun-qq-s-pro-to-tmc2209/) to get an idea
- Check your TMC modules if there are any jumper to close or potentially pins to cut. See [FYSETC SPIDER - FYSETC WIKI](https://wiki.fysetc.com/Spider/#33-wiring-tmc2209) for some generic information that can come in handy

---

_[View the full topic](https://klipper.discourse.group/t/tmc2208-v3-uart-on-rumba-board-raise3d-n2/6740)._