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Led Plan


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#1 SymphonyTomorrow

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Posted 08 January 2006 - 08:56 PM

This is for my axbox project. I have a plan for controlling the LEDs, and I the hands-on controls for it, but I don't know for sure what all is needed "behind the scenes". I have two switches and one two-part potentiometer (it used to control bass and treble levels). I want one of the switches to turn the LEDs on, the second to turn on flash patterns. Then, one of the pots will control LED dim/bright, while the other I'd like to control the speed of the flash patterns. How can I make this happen?

Brian

#2 SymphonyTomorrow

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Posted 09 January 2006 - 06:01 AM

so, no replies so far. C'mon, I know you guys know this stuff.

**self bump**

Still need an answer

#3 Modderxtrordanare

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Posted 09 January 2006 - 06:23 AM

Well to have a switch control if LEDs are on or off, solder the switch between the ground and the cathode (-) assuming the resistor is on the Power (+) end.

I think it would work like either of these.

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#4 SymphonyTomorrow

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Posted 09 January 2006 - 06:52 AM

ok, still need 3/4 of the question answered though. Anyone?

#5 SICKdimension

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Posted 09 January 2006 - 08:23 AM

For the flashing patterns, you'd need to either write a custom program for a mcu, or make some semi-complicated circuts involving timer chips, capacitors, etc.

The pot probably won't work unless you replace it. It's most likely a 10K (10,000ohms) resistor.

The switches can go on either side of the circuit, (anode or cathode), as can the resistor.

#6 mikeymikeuk

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Posted 09 January 2006 - 01:28 PM

Like SICKdimension said you need to use a dedicated micro controller say a PIC or an AVR with an onboard analogue to digital converter. That way you'd be able to use the two pots to give voltages that represented the speed and brightness you wanted. The other switches would just tell the micro to turn ON/OFF and change the lighting pattern.





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