It is time again for a Microcontroller Contest!

This contest is open to any instructable that includes the use of a microcontroller such as an Arduino, Raspberry Pi, Beaglebone, Huzzah board, or whatever other system you might be working with. There is a special judges' prize for the best use of Eagle.

The Microcontroller Contest is closed.

Grand Prize

20 Prizes

Grand Prize

One Grand Prize Winner will receive:

Judges' Prize - Eagle

One Judges' Prize Winner for the Best Use of Eagle will receive:

First Prize

Three First Prize Winners will receive:

Second Prize

Five Second Prize Winners will receive:

Runner Up

Ten Runner Up Prize Winners will receive:
How It Works

Write an Instructable

Create a new Instructable that fits the guidelines outlined in the contest description above. To be eligible, Instructables must be published between Feb 1, 2021 and Mar 29, 2021 (11:59pm PT).


Upon publishing your Instructable you'll see checkboxes for open contests. Select Microcontroller Contest. If you have entries currently eligible for entry, it will also show up by clicking "Enter this Contest" on the right side of this page.


Entries are accepted by Instructables staff within one business day Monday - Friday. What matters is the submission time, not acceptance time.


A panel of judges made up of Instructables staff and respected members of the community rate the finalists. The averages of the ratings determine the winners.


When the winners are decided they will be notified and announced here on the contest page.