I wanted to make something fun for my daughters to wear to their school’s father daughter dance. It was Hawaiian Luau themed, so there was no better way to accessorize than with a sound reactive lei necklace!
I ended up making three necklaces all together – one for me, and one for each of my daughters. By the time I made the third necklace, I had the process down and could get one put together in a about 3 hours.
The process is basically removing the original string from necklace re-stranding it with with 3 wires (power, ground, and control, + mono cord) and soldering RGB LEDs in between each flower. The fabric flowers diffuse the light nicely for a very cool, very unique look.
I had a great time making the necklaces. My daughters enjoyed the process. They both gave me great ideas , helped me test and troubleshoot, and both learned quite a bit about electronics.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.