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scooter Posted - Aug 16 2006 : 12:59:02 AM
i did try to search but i couldnt find exactly wut i was looking for.
on my stratus there are two reflectors under the rear light, i want to place LED's in these. i would like it to light and stay lit until the last light is lit, then repeat,
this link has an image of what i would like this,
http://deneau.info/stratus/blinky3.gif

9   L A T E S T    R E P L I E S    (Newest First)
marks256 Posted - Aug 30 2006 : 11:31:54 AM
With multiplexing, and a microcontroller, you could control A LOT of LEDs!
Schleusner Posted - Aug 29 2006 : 7:07:24 PM
Why do you need to drive that many? Maybe if you have 4 on each side, you could just have it set up with some relays to drive the right front and back, and another 4 to drive the left front and back. You could even have your microcontroller respond to your factory default blinker, and start counting up/down when it is on.
Aaron Cake Posted - Aug 21 2006 : 09:48:52 AM
You can use a lot fewer I/O pins if you multiplex.

scooter Posted - Aug 19 2006 : 02:01:45 AM
ok i think i may have this figured out, or i have everything entirely messed up.
im thinking of usint the atmel AT90S8515
http://www.iguanalabs.com/1st8515.htm

my question now is about hooking up LED' to this.
can i hook up 8 led's between ports PB0-PB7, 8 between PD0-PD7, 8 between PA0-PA7, and 8between PC0-PC7. and then program each led to have it's own turn on/off time, to get them to flash like in the picture?



Edited by - scooter on Aug 19 2006 02:13:19 AM

Edited by - scooter on Aug 19 2006 5:34:07 PM
Aaron Cake Posted - Aug 18 2006 : 09:40:35 AM
That's rather unethical.

If you search for "seeking microcontroller for simple pwm" there is a topic that covers a few simple microcontroller options.

scooter Posted - Aug 17 2006 : 10:21:52 PM
ok thanx, i guess ill learn to program n do it that way.
i do know that it is most likely illegal, yet all i hqve to do is add a simple switch and relay sytem to turn on or off the factory blinker style, then if i get in an accident there wouldnt be a problem.

marks256 Posted - Aug 16 2006 : 12:41:26 PM
Yes, chances are that it is illegal. I wouldn't try it.

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/

Knowledge is a dangerous weapon that humans should not be trusted with.
Aaron Cake Posted - Aug 16 2006 : 09:59:22 AM
That's likely ilegal. If you were in an accident, your insurance could (and probably would) invalidate your claim since you would be running non-DOT approved taillights.

But to answer the question, a microcontroller is likely the easiest thing to use.

Binary 1011001101 Posted - Aug 16 2006 : 04:21:32 AM
If you know how to program in C or assemmbler you can program a PIC chip to do that.

01100010011010010110111001100001011100100111100100100000011100100111010101101100011110100010000100100001

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