- The costume wasn’t carefully planned, it was improvised and upgraded in steps. Electronics doesn’t need to be a daunting, formal thing — don’t be afraid to experiment and play when developing your own Halloween or cosplay ideas. I still pull it out and add new things occasionally.
- The software we wrote is all open source…you can take it apart, remix it, use a little or a lot, improve or adapt it to your own projects (which we hope you’ll share!)
Animating Multiple LED Backpacks (and the prerequisite Adafruit LED Backpacks guide). This illustrates the wiring for the LED matrices that make up the face. The idea of combining this with a Wave Shield (for playing back prerecorded sounds) is touched on here.
- Wave Shield Voice Changer (and the prerequisite Wave Shield guide). This shows how to combine the Wave Shield with a microphone to alter one’s voice. There are two example programs for this tutorial: “adavoice” is the voice changer alone, while “adavoice_face” also adds the LED backpack face animation…the latter code is what the demon is using.
Working with EL Wire
- EL Wire Animal Masks (similar construction techniques were used for Spark’s wings and horns)
- Firewalker LED Sneakers
If vision and safety are a concern, or if you’re just not keen on spandex, you could build atop a bike helmet with a robot or alien face that sits above your own head. The EL Wire Animal Masks tutorial shows some great examples of this style!
The breathing effect was achieved using a PWM output on the Arduino (the analogWrite() function), connected to a power MOSFET to drive all the LEDs. It’s similar to the code and wiring used in this RGB LED Strip guide, but using discrete LEDs in parallel instead.