Tag Archives: Erin St. Blaine

This glowing LED dress is magical


One Maker has created a FLORA-powered, Disney-inspired dress that magically twinkles and changes colors as she twirls.


Like something straight out of a Disney tale, Erin St. Blaine has put together quite the magical fairy ensemble for her community’s recent electric lights parade.

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The Maker’s fiber optic Snow Fairy Costume employs Adafruit’s Pixie 3W LEDs, which are around 20 times as bright as a NeoPixel — making them the perfect choice for a nighttime festivities.

The dress itself is equipped with a FLORA (ATmega32U4) for its brain and an accelerometer/compass module for enacting mode changes by spinning. Yes, it even twinkles and changes colors as she twirls, just like Cinderella.

Aside from the five Pixies lighting the fibers, the Maker included two more underneath her hoop skirt for an “underglow” effect. She also modded and connected a 60-LED LumiLabs Crystal Crown to round out the glowrious getup.

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“I made a wreath headpiece that fits me out of some holiday floral junk from Michael’s, and then added a second concentric wire ring inside the first, and wired them together at each cardinal point,” St. Blaine explains. “The inner ring sits a couple inches above the main ring. I then took some ribbon and wove the crystal crown to the inner ring, and decorated the whole thing with lots more Michael’s holiday junk.”

Inspired by Disneyland’s Electric Light Parade fairies, the Maker ordered a cheap antenna book light that she wove into the crown with the two book lights pointing right down at her face. St. Blaine says that the battery pack was the perfect size to wedge between the two concentric circles of wire to hold them apart.

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But why stop there? She went on to add little more magic to her costume, and by magic we mean a connector, so that the crown can change modes seamlessly along with the dress.

“I am still planning on adding some fiber optic lights to the wings as well,” she writes. “I’m thinking fiber optics are the answer here too, but I am a little unsure how to proceed without tearing the wings all apart and then re-covering them.”

So was it a hit? Umm… obviously! According to St. Blaine, “It was really well received. I couldn’t go more than a few steps without being stopped for photo ops and little girl hugs.” The Maker has provided a step-by-step tutorial of her build over on Adafruit, and shared a video of the fiber optic outfit in action below!