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Yet another LED taillight controller......

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by NickK, Mar 31, 2003.

  1. NickK

    NickK New Member

    Joined:
    Mar 30, 2003
    Messages:
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    0
    Can someone give me some ideas for a contoller for this?

    Signal1 = always hot (12V DC+)
    Signal2 = Brake (12V DC+)
    Signal3 = Left Turn (12V DC+)
    Signal4 = Right Turn (12V DC+)

    0= off, 1,2,3,4,5,6,7,8 = on

    No Signal=
    00000000000000000000000000000000
    00000000000000000000000000000000
    00000000000000000000000000000000
    00000000000000000000000000000000
    00000000000000000000000000000000
    00000000000000000000000000000000
    00000000000000000000000000000000

    Signal 1=
    01010101010101010101010101010101
    10101010101010101010101010101010
    01010101010101010101010101010101
    10101010101010101010101010101010
    01010101010101010101010101010101
    10101010101010101010101010101010
    01010101010101010101010101010101

    Signal 1+ Signal 2 = (flashing every .5sec)

    11111111111111111111111111111111
    11111111111111111111111111111111
    11111111111111111111111111111111
    11111111111111111111111111111111
    11111111111111111111111111111111
    11111111111111111111111111111111
    11111111111111111111111111111111

    Signal 1+ Signal 3= (.5sec delay between each set, all sets stay on until #7 is lit, then cycle starts over)

    00070605040302010000000000000000
    00706050403020100000000000000000
    07060504030201000000000000000000
    70605040302010000000000000000000
    07060504030201000000000000000000
    00706050403020100000000000000000
    00070605040302010000000000000000

    Signal 1+ Signal 4= mirror image of Signal 1+ Signal 3

    Signal 1+ Signal 2 + Signal 3= ( same as Signal 1+ Signal 3, 1s flash every .5sec)

    00080706050403021111111111111111
    00807060504030211111111111111111
    08070605040302111111111111111111
    80706050403021111111111111111111
    08070605040302111111111111111111
    00807060504030211111111111111111
    00080706050403021111111111111111

    Signal 1+ Signal 2 + Signal 4= mirror image of Signal 1+ Signal 2+ Signal 3

    I was looking at something like http://www.doctronics.co.uk/4017.htm or http://www.electro-tech-online.com/threads/processing-count.536/ for the turn signal sequencing but I'm not sure it would work with 7LEDs hooked up to the same output (could I use the 4017 to trigger some kind of relay instead?), also, I would need to seperate the LEDs so that I wouldn't get crossfeed from the different signals, correct?

    Maybe a microcontroller would be the best way to do it... I've flashed EEPROMS for automotive ECMs using a bin editor but that's as far as I've gone.


    Thanks,

    Nick K
     
    Last edited by a moderator: Dec 26, 2013
  2. kinjalgp

    kinjalgp Active Member

    Joined:
    Oct 28, 2002
    Messages:
    1,851
    Likes:
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    Location:
    INDIA/USA
    You can use microcontrollers for getting any desired sequence. The programming for that is also not very difficult.
     

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