# Microcontroller
**URL:** https://forum.digikey.com/c/category-archives/microcontroller/67.md
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## [About the Microcontroller category](https://forum.digikey.com/t/about-the-microcontroller-category/11969)
**Author:** [@Robert\_Fay](https://forum.digikey.com/u/Robert_Fay)\
**Replies:** 0
Topics from the eeWiki Microcontroller category have now been moved into the Semiconductor or Embedded category based on the content of the post. Please review the categories below or search for the Microcontroller, Manu…
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## [MOSFET to uC Guided Learning Q2: – Describe inductive kick (flyback voltage) and mitigation](https://forum.digikey.com/t/mosfet-to-uc-guided-learning-q2-describe-inductive-kick-flyback-voltage-and-mitigation/57189)
**Author:** [@APDahlen](https://forum.digikey.com/u/APDahlen)\
**Replies:** 0\
**Last updated:** [July 9, 2025, 3:19pm UTC](https://forum.digikey.com/t/mosfet-to-uc-guided-learning-q2-describe-inductive-kick-flyback-voltage-and-mitigation/57189 "2025-07-09T15:19:00Z")
This article is part of a guided learning series to explore real-world applications of MOSFETS and microcontrollers. :pushpin: Canonical Article: How to Interface a Microcontroller with a Relay Using a MOSFET …
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## [How to Interface a Microcontroller with a Relay Using a MOSFET](https://forum.digikey.com/t/how-to-interface-a-microcontroller-with-a-relay-using-a-mosfet/41470)
**Author:** [@APDahlen](https://forum.digikey.com/u/APDahlen)\
**Replies:** 2\
**Last updated:** [August 7, 2024, 4:18pm UTC](https://forum.digikey.com/t/how-to-interface-a-microcontroller-with-a-relay-using-a-mosfet/41470 "2024-08-07T16:18:25Z")
Article summary This is a case study showing how to drive a relay coil from a microcontroller via an N-channel MOSFET. We explore the limits of the technology with emphasis on the MOSFET gate drive voltage as well as the…