# Zephyr: How to use Shells for Prototyping & Debugging Notecard Applications

**URL:** <https://discuss.blues.com/t/zephyr-how-to-use-shells-for-prototyping-debugging-notecard-applications/2947>\
**Category:** Blog Posts\
**Created:** [March 27, 2025, 2:32pm UTC](https://discuss.blues.com/t/zephyr-how-to-use-shells-for-prototyping-debugging-notecard-applications/2947 "2025-03-27T14:32:47Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![BluesDevRel](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/bluesdevrel/32/899_2.png) [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\
**Post date:** [March 27, 2025, 2:32pm UTC](https://discuss.blues.com/t/zephyr-how-to-use-shells-for-prototyping-debugging-notecard-applications/2947/1 "2025-03-27T14:32:47Z")

</div>

Learn how to use Zephyr Shells with examples for I2C, sensors, and custom Notecard commands.

* * *
Read the full blog post at [https://blues.dev/blog/zephyr-use-shells-for-prototyping](https://blues.dev/blog/zephyr-use-shells-for-prototyping) and continue the discussion here.