First intention, then enlightenment..
Ars Pyronomica
" Life is programmed. Whether death is programmed or not is yet to be determined."
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BASS reactive
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beamers
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MillenniuM
I live in a world of infinite possibilities.
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I looked into this a little and it looks like it's going to be difficult to differentiate bass from treble so how about just reacting to volume? I assume that flashing to the top 10 or 20% of the volume range (running average) would do the trick.
Would this work for the music you listen to?
First intention, then enlightenment..
Ars Pyronomica
" Life is programmed. Whether death is programmed or not is yet to be determined."
Cake or Death?
UYI OLDSKOOL
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I doubt they take up too much memory
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biggest problem with LED toys is durability
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musashii
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FireGeek
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its a problem. Polycarbonate tube is fairly strong and is easy development wise, so _if_ I can find any...
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I had considered making a control box so it would be reasonable portable, but with the options that would have to go onto it I think you're right about the software being the only way to go. Pitt about portability though.
These chips don't know anything about USB so any USB interface is going to be a problem, or at least expensive in $ and space. On the up side the serial interface is dead simple and provided the devs are willing to release the specs on how code is dumped into the chip it would simplest just to pump customised code (main engine and all) into the chip every time an edit was made. Though I guess if the serial output where regulated down enough it might work just to use that as digital input... will have inputs to spare.
IMO execution will be the easy part.
The code to interpret the input for is going to take up space so the main chip will have to the 'the next one up', but given the potential of this setup the cost is probably worth it.
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Yeah, nothing like giving one of these things 4A to play with, nice and bright!
I'm concentrating on trying to drive the LEDs at no more than their ratings (going for a long life) but it's depressing how dim they are.
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Perhaps you can help my understanding here because there I'm having some trouble with this:
(according to text books and manuals)
PWM is going to produce a change in voltage (eg0-6v).
Resistance is going to limit the current (eg0-4000ma)
but then I go on to read about driving LEDs at their peak current safely by pulsing a fixed number of volts at the peak current. !!! but isn't pulsing going to change the number of volts?!!? AAARRRGH
Cake or Death?
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I found a source after much phoning around; £14.50 for 1m of poly carb tube which is 33mm O/D, 31mm I/D.
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I reckon just a load of pre-programmed modes would be enough to be honest. If you take a look at Myke's PIC Page, he recommends a new chip that's come out (no idea how much they are) which allows a program to write to it's own program code. I thought that sounded like it might be a way for people to write their own stuff.. ?
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I found that running the LEDs with a little extra current seemed fine
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I've got the El-Cheapo PIC programming pcb - just need the components and I'll be able to make a start on some flashing POI. Look out Aerotech, here we come
Wizard of LED poi !
Cake or Death?
Wizard of LED poi !
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IMHO the hardest part of LED poi is getting the mechanical reliability and brightness sorted
These things have to be able to stand being smacked into the ground, dropped, soaked in paraffin/mud/beer etc etc
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Getting the brightness is also a major challenge, I've just finished my new LED poi using Luxeon Emitters but they require some serious development work to keep the heat down!
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One cool effect is to use a solid-state accelerometer in each head that will vary "something"
This is a post by tom, all spelling is deleberate
-><- Kallisti
Posh ravers wear ties.
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