<Tauntaun> |
<Glow-Hoop>
Objective: For Christmas in 2011 I decided to make my mom a purplish LED hoop that
she could use at prop festivals and jams. Videos:
Pictures: Features/Specifications: ·
HDPE plain white Hoop o 6.25” ID tubing, 37.5” circumference hoop o push button connector to easily access charger
port and LED harness o Hoop provided by Nina Infinity ·
LED
Harness o
21 LED strand with current limiting resistors o
White/blue/purple/purple/blue
repeating pattern o
Evenly
spaced along circumference of hoop and wrapped in bubble wrap to prevent
rattling ·
Rechargeable Battery Pack o
4.8V
2300mAhr rechargeable NiMH pack (AA’s) o
Battery
weight evenly distributed across the circumference of hoop o
Runtime:
~5 hours ·
Charger o
Prophet
sport AC/DC peak charger o
Able to
be charged from wall outlet at home or from car battery at festivals o
Max
charge rate: 1A o
Charge
time: ~2.5 hours ·
Low
voltage indicator o
Detection at 4.1V to prevent damage to batteries o
A
MAX8212 turns off Ľ of the LED harness to indicate to the user that they need
to recharge their hoop Future Work/Notes: ·
Switch to
a single easy to swap in/out rechargeable lithium ion cell. ·
Improve
low voltage circuit such that the LED’s and battery automatically shutdown when voltage is too low (maybe find battery with
this as included feature) ·
Find
LED’s with built in current limiting resistors to reduce construction time. ·
Experiment
with programmable LED hoops |
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<About>
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