This Geode Necklace Will Make You Sparkle #WearableWednesday #wearabletech #Arduino #DIY
Stone has been a trend, from agate slice jewelry to glowing salt crystal diffusers. Kat Kelsch decided to combine stone and glow using a shimmery geode necklace. Working with electronics and jewelry is always tricky because it is hard to hide the circuit, however, Kat managed to get the illumination while keeping the natural beauty of the geode as the focus.
An Adafruit Trinket microcontroller sits on top of a battery case with wires intertwined around the original necklace chain. Two Neopixels glued to the back of the geode provide the light show, allowing Kat to have coordinated outfits. I really like both the red and blue glow as they bring reminders of lava and water.
The battery case and controller hide nicely behind the neck, keeping the tech to a minimum. I should mention that I found the beginnings of this project a week ago while scrolling through my Twitter feed, so seeing the finished necklace is really exciting. One of the funny moments comes from Kat’s description of parts, with this last item:
$1 to the swear jar when I flicked solder on my hand
I guess she will need to work on some more jewelry to cover that burn. Seriously, this is a cool project and make sure you follow @katkelsch to see more electrical engineering in the wild. Have you made some blinky jewelry? Send us your pics or videos and we’ll give you some cred.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
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