Updated : FEB 28, See my website for more pictures and wiring diagrams.
21 led's inside a 3/4 inch pipe for faster hooping styles.
I previously made a instructable how to make a 42 LED hula hoop. But my most popular hoop on my site is the 21 LED so i decided to make another instructable for this one. It is very similar with a little different wiring.
I started learning about this because my GF wanted a LED hula hoop for christmas. After seeing sites online selling them for $250+ for rechargeable ones.. I decided i could make it myself for half that and rechargeable.
Takes about 3 hours to make
Step 1: Supplies
plumbing and electronics stores.
The hardest thing to find is a good tubing product. I wanted to use something that was fairly cheap, came in short lengths and had the proper strength and transparency i needed. The product i found that works best is Aqua-pex. It has writing on it with the brand and specs.. but it won't be noticeable at night , when you will be using a LED hula hoop anyway.
21 LEDS - $12.00 on ebay
132" of 3/4" pipe - $20.00 for 20 ft. Aquapex also available on ebay
1 x 3/4" pex coupler - $1.00 home depot or ebay
2 x 3/4" pex clamps - $0.50 home depot or ebay
36' x 22 ga Wire - $15.00 for 100 ft.
4 x AA NIMH rechargeable batteries - $18.00
1 x 6 volt battery charger - $15.00
1 x 1.75 x 4.75mm plug and dc Jack - $4.50
21 resistors - $2.00 for 100
1 x Slide Switch SPST on-off $$9.00 for 10
Everything comes to around $70
Plus a few basic tools you may already have.
Soldering Iron, Drill, Solder, file or sandpaper, Flux, Electrical tape, marker, glue, pipe cutter, String, Wire strippers, Bubble wrap, and a paper clip.