FUnicorn Voice-Activated Guide


A brilliant arduino-compatible way to tell people off

It's a unicorn with a special message.  The base kit activates the message by touching the unicorn, and needs to be plugged in to work (you'll need to provide your own USB power or 5-12V power supply).  

The base kit includes:
- The majestic FUnicorn circuit board
- A piece of dark smoked acrylic to obscure the LEDs when unlit
- A cardboard stand
- A beautiful rainbow USB cord
- Stickers

The full kit includes:
- Everything in the base kit
- A Big Red Button kit (everything you need to add a large arcade button)
- A battery cable, 9V battery not included
A Distance Sensor kit (distance sensor, cables, and stand)
- Headers for the arduino shield pattern
- An FUnicorn magnet and more stickers

The code that ships with the FUnicorn activates the message by either touching the unicorn or pressing a button (provide your own or get the full kit).  It can be put into a low power mode for operating off of battery power by pressing and holding the button for the duration of one of the message cycles.  The message cycles through 5 different fun blinking patterns.

I originally made it as a white elephant gift exchange gag, but thought that this really had to exist in the world as a thing people could buy.  So I made it arduino-compatible and developed libraries for it, and added a shield pattern to the back.  I don't know about you, but I'm much more interested in learning new skills when a project speaks to me, so I'm hoping this will inspire people to learn how to do basic embedded programming in the Arduino IDE.

It's a pretty big board at 4" x 7", a nice size to proudly display on your desk.  It has a majestic unicorn on it with **real gold** plating.  There's an unusual cyan-colored LED on the tip of its horn that adds to the magic.  There are 120 red LEDs that spell out...the thing that it says... in cursive.  So don't worry, your kids probably won't be able to read it anyway.  There's a custom-designed cardboard stand that also holds a piece of smoked acrylic in front of its special message, so it's hidden until activated.  And I found amazing rainbow USB cables, which really tie it all together.  It's also completely made in the USA.  This is also an explanation as to why it's not cheaper.  The size of the board, the number of LEDs, and the fact that it's US-made in a relatively small quantity make it cost more.  

There are 120 LEDs soldered in place to spell out its beautiful message in classy-ass cursive.  Although it's a one-trick pony and you can't change what it says, the possibilities of how to trigger the message are endless.  There's an arduino shield pattern on the back, so you can solder on the headers (or wires) and add practically any sensor to it.  Want to make a "6 feet, mofos" sign?  Add a distance sensor and/or a motion detector.  Want to tell someone they're being too loud?  Add a microphone.  Want to simply keep track of how many times you've told people off?  Add an LCD shield.



Voice-Activated FUnicorn with Google AIY Voice Kit & RPi

That's riiiiight! Your favorite potty-mouthed horned pony can now be VOICE ACTIVATED! We've put together a python script that works with a Raspberry Pi and a Google AIY Voice Kit, and only needs you to hook up 2 jumper wires between the Pi and the FUnicorn. No soldering needed!

Here's our repo on Github, it's forked from the Google AIY Projects repo. NOTE! When cloning the repo, the first thing you should do is check out the <aiyprojects> branch! Google discontinued the default "master" branch at some point and it is old.

Hardware Setup:

  • Google AIY Voice Hat Servo 0 left pin (GPIO26) to Alpenglow FUnicorn button connector pin 3
  • Google AIY Voice Hat Servo 0 right pin (GND) to Alpenglow FUnicorn button connector pin 4

Changes and Additions:

  • was updated according to description in issue 716.
  • demo python scripts for the FUnicorn added to src/examples/voice

We wanted full functionality of the Google Assistant with the option to use the wake word. We also wanted the Google Assistant to control the Raspberry Pi output and use a custom phrase to activate the FUnicorn.


  • has full Google Assistant functionality and is commanded via the wake word (OK Google or Hey Google), and outputs a "button press" to the FUnicorn when "fuck you" is uttered. It also says "No, Fuck You" in a most excellent obviously computer-generated voice. This would be a good script to modify and use with your own custom hardware.
  • is solely a cloud speech to text demo that is always listening and interpreting. There is no Google Assistant functionality.


Here's a short video of the Voice Activation!

Additional FUnicorn Content!

Have any questions?  Contact us!