# Protecting your arduino inputs and outputs

**URL:** <https://lookmumnocomputer.discourse.group/t/protecting-your-arduino-inputs-and-outputs/3082>\
**Category:** DIY STUFF\
**Created:** [March 4, 2021, 8:42pm UTC](https://lookmumnocomputer.discourse.group/t/protecting-your-arduino-inputs-and-outputs/3082 "2021-03-04T20:42:58Z")\
**Posts on this page:** 1\
**Showing post:** 10

<div class="post-metadata">

**Author:** ![nschagen](https://avatars.discourse-cdn.com/v4/letter/n/94ad74/32.png) [@nschagen](https://lookmumnocomputer.discourse.group/u/nschagen)\
**Post date:** [March 14, 2021, 8:51pm UTC](https://lookmumnocomputer.discourse.group/t/protecting-your-arduino-inputs-and-outputs/3082/10 "2021-03-14T20:51:50Z")

</div>

Thanks! I’m curious what the advantages are of using a transistor here. My initial thought is that this would be more then enough:

![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/6/69c333fd0ad14f20498509b7ebae6a54fa3da614.png)

My guess is that, depending on the use-case, you could even leave out the capacitor.

I also received my schottky diodes today 🙌

---

_[View the full topic](https://lookmumnocomputer.discourse.group/t/protecting-your-arduino-inputs-and-outputs/3082)._