Seeed-Studio-Wiki/docs/FAQ/ODYSSEY/not_recognize-onboard-microcontroller.md
2024-10-31 09:17:45 +08:00

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---
description: ODYSSEY-FAQ
title: Arduino IDE doesn't recognize the onboard microcontroller on ODYSSEY - X86J4105/ X86J4125
#keywords:
slug: /not_recognize-onboard-microcontroller
image: https://files.seeedstudio.com/wiki/wiki-platform/S.png
last_update:
date: 6/26/2023
author: Seraphina
---
If your Arduino IDE doesn't recognize the onboard microcontroller on ODYSSEY - X86J4105/ X86J4125, please add a jumper wire between **RST Pin** and **GND Pin** on the 4-Pin header (to the left of SAMD21's 28 pins) to reset the AMSAMDG21.
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![](https://files.seeedstudio.com/wiki/ODYSSEY-X86J4105/oydsseyx86J4105_pinout1.png)