LED HULA HOOP
Wire a hoop to put some spark in your swivel. BY BROOKELYNN MORRIS
LED hula hoops are so beautiful to watch, and project was chosen for its similar voltage drop,
creating a custom hoop is a satisfying chal- making things simpler by requiring only one value
lenge. Twenty-one LEDs are used in this hoop; of resistor.
6 are flashing LEDs that cycle through the colors The battery for this project can be a laptop
of the rainbow. Each light is combined with a resis- battery like the one used here, or a few AAA
tor and then wired together in a classic and simple batteries taped into series. Either way, the tube can
parallel circuit. be taken apart for the battery to be easily changed.
Be sure to research each part and its specs Experimentation and thoughtful research will make
when creating the circuit design. Each LED for this this project successful.
Photography and illustration by Nat Wilson-Heckathorn