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Forums > Technical Discussion > Homemade LED with pressure switch?

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iain


member
Location: Vancouver, B.C.

Total posts: 30
Posted:Wondering if anyone would have any good ideas on how best to make this. Check out www.globalls.com for Aerotechs version. Then look at the prices! Seems worth a little learning to me . . .

What I want is globalls that change colour on catch, so that would mean some sort of pressure sensitivity to make them change colours. I figure it would be damn cool on a devil stick too as the other colour would flash on a hit. ( Or in clubs. )

Thanks folks,
Iain


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Paddy


back from the dead...sort of
Location: 4341'N 7938'W

Total posts: 884
Posted:I don't know about pressure switches, but I had a electronics kit way back in the day that had a...well, I can't remember the name of the component, but it was a little thing whose resistance lessened in the presence of a magnet. they're cheap, I know that much. you could put magnets on your hands and use those if pressure switches are too expensive.

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iain


member
Location: Vancouver, B.C.

Total posts: 30
Posted:That's an interesting idea paddy. Thanks. = )

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Ender


member


Total posts: 68
Posted:whoa. magnets? that could open up all types of new possibilities!

like you dont even have to touch it to change things, just wave ur hand.

or maybe have a partner that's "manipulating" the colors while you swing


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iain


member
Location: Vancouver, B.C.

Total posts: 30
Posted:Check out radio battons, invented by Max Mathews. They are balls on sticks that send out info on their location in 3 dimensions so that music computers can use the 3 dimensional movement as control input. I'm sure it's only a matter of time before we see something similar mounted in props, or at least microcontrollers capable of radio communication with sequencers. I know people who have made midi controlled dancing robots, no reason that that control couldn't be replaced with radio. Bet it would be expensive though . . .

Iain

[ 27 September 2002, 16:30: Message edited by: Iain ]


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Hecatonchires


member
Location: Wollongong, Australia

Total posts: 45
Posted:Momentary switches cost about 40c from your local jaycar. I've used them whenever I've made lightrings for myself or my friends - a bit more robust than using the arm of the led as a spring to touch the back of the battery. They are pretty small - 4mm*4mm*2mm. Mount the pin that is the contact so that pressure over an area sets it off. I use cut up aluminium can. Of course, u want something that switches colour whenever pressed, not turns on, so thats more a simple IC, and for that, I'm useless.

--Luke

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bender
GOLD Member since Nov 2001

still can't believe it's not butter
Location: Melbourne, Australia

Total posts: 6979
Posted:lain, here's a serial experiment that is so simple that you'll hit yourself
/bangs head against keyboard
alshd;flkshg
oops too late.
anyhoo, you are looking for a momentary switch to set off changes in a lighting circuit, non?
preferably something that will withstand the wear of twirling?

well, from an experiment where i mixed several toy lightsabers with copious amounts of a compound called 'Vic Bitter', I have had the opportunity to open up said light toy.
the switch is in fact a metal cylinder enclosed -but not touching- a metal spring. both are connect to a wire. In certain conditions whereby the entire toy is sent impacting on friend's cranium, the spring deforms on impact momentarily and connects the circuit for an instant.
viola, a crude momentary impact/catch sensor.

hope this helps more than a hole in the head, and good luck in your serial experiments, lain!


Laugh Often, Smile Much, Post lolcats Always

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iain


member
Location: Vancouver, B.C.

Total posts: 30
Posted:Cool, thanks Bender.

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Singed Piper (formerly Mark1)


Singed Piper (formerly Mark1)

resident bagpiper
Location: Vermont, USA

Total posts: 342
Posted:the red cross gives out toys(superballs) with this property in the u.s. you could probably get a couple and turn them into poi

Q:What's the difference between the Great Highland Bagpipes and the Northumbrian Pipes?
A:The Great Highland Pipes burn longer.

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Hecatonchires


member
Location: Wollongong, Australia

Total posts: 45
Posted:Bender, I saw that anime quote. Received any emails from dead people lately?

--Luke

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bender
GOLD Member since Nov 2001

still can't believe it's not butter
Location: Melbourne, Australia

Total posts: 6979
Posted:erm depends if they came from the internet

Laugh Often, Smile Much, Post lolcats Always

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