ATMega32U4 Arduino board, available from SparkFun Electronics
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bboyho Merge pull request #4 from bboyho/master
Correct Pin in Graphical Datasheet and Update Repo
Latest commit 99359c2 Jan 29, 2018

Pro Micro

Pro Micro - 3.3V/8MHz [DEV-12587]
Pro Micro - 5V/16MHz [DEV-12640]

The Pro Micro is a micro controller with an ATMega32U4 IC on board. The USB transceiver is inside the 32U4, adding USB connectivity on-board without external USB interfaces. This comes in both a 3.3V and 5V version.

Repository Contents

  • /Documentation - Data sheets (.pdf and .svg)
  • /Firmware - Arduino example code used in the hookup guide
  • /Hardware - All Eagle design files (.brd, .sch, .STL)
  • /Production - Test bed files and production panel files


Product Versions

License Information

This product is open source!

Please review the file for license information.

If you have any questions or concerns on licensing, please contact

Distributed as-is; no warranty is given.

  • Your friends at SparkFun.