The Teensy Life

Let's take a look at all of our Teensy product offerings and projects!

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We've been lucky to have Teensy for as long as we have. Since 2013, SparkFun has been carrying the ultra-small development platform from PJRC, from v2.0 all the way up to its latest iteration, v4.0, and just about everything in between. Teensy boards have the knack for being resilient and dependable with little risk of defect or shortcomings. When you buy a Teensy, you can be assured that you will receive a breadboard-friendly development board with loads of features.

Now, seven years after we began carrying Teensy, we have an immense offering of the different varieties available from PJRC, as well as a few homebrew creations we and others have developed. Let's take some time to showcase what have to offer as well as some fun tutorials and projects that could help you design your next project!

Teensy Development Boards:

Teensy 4.0

Teensy 4.0


Teensy LC

17 Retired

Teensy 3.6 (Headers)

7 Retired

Teensy 3.6

15 Retired

Teensy 3.5 (Headers)

1 Retired

Teensy 3.5

8 Retired

Teensy 3.2


Teensy++ 2.0

3 Retired

Teensy Add-On Boards:

Teensy 4 Audio Shield (Rev D)

Teensy 4 Audio Shield (Rev D)


Teensy 3 Audio Shield (Rev C)

1 Retired

SmartLED Shield V4 for Teensy 3

1 Retired

SparkFun TeensyView

6 Retired

Teensy Prop Shield LC


Teensy Prop Shield

1 Retired

Teensy 3.1 XBee Adapter

Teensy Arduino Shield Adapter

Teensy Arduino Shield Adapter


Projects Using Teensy:

Vox Imperium: Stormtrooper Voice Changer

October 25, 2016

Add some flair to your Imperial uniform by changing your voice using a Teensy 3.2 and Prop Shield.

Boss Alarm

March 30, 2016

Build a Boss Alarm that alerts you of anyone walking into your office and automatically changes your computer screen.

RGB Panel Jumbotron

August 5, 2014

This tutorial will show you how to combine a webcam, a 32x32 RGB LED panel, and a Teensy 3.1 to stream video from the webcam, pixelate it, and display it on the LED panel - LIVE.

Proto Pedal Example: Programmable Digital Pedal

September 22, 2016

Building a pedal around the Teensy 3.2 and Teensy Audio shield. Changing the effect in the pedal is as easy as uploading a new sketch!

Handy Tutorials for Your Teensy:

Getting Started with the Teensy

June 18, 2015

Basic intro to the Teensy line of products, with soldering and programming suggestions.

How to Load MicroPython on a Microcontroller Board

September 4, 2018

This tutorial will show you how to load the MicroPython interpreter onto a variety of development boards.

Getting Started with the SmartLED Shield for Teensy

November 9, 2018

In this tutorial, we will connect different RGB LED matrix panels to PixelMatix's SmartLED shield and Teensy.

HID Control of a Web Page

March 12, 2014

Learn how to move a slider on a webpage and make a motor spin. We connect HTML and HID to read sensors and interface with the physical world.

What Teensy do you love the most? What project have you made recently that uses Teensy? Leave a comment below and let us know.

Comments 3 comments

  • Member #567802 / about 4 years ago / 1

    I'm working on an Altair 680 emulator for the Teensy 4. I was going to use the Arduino Due, but I'd like to give the Teensy a try.

  • NotDavid4JustDavid / about 4 years ago * / 1

    So,where is the Teensy QWIIC adapter board? (Hint, hint) I'd also like to see another update to the Arduino adapter offering a QWIIC port there as well.

  • Member #134773 / about 4 years ago / 1

    IM[NS]HO, the best part of the Teensy 3.5/3.6/4.0 is that they provide access for an on-board Real Time Clock/calendar [RTC] if you add an external battery, without having to mess with an external RTC board!

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