LED strobe effect

Discussion in 'The Projects Forum' started by zidan3, Jun 17, 2010.

  1. zidan3

    Thread Starter New Member

    Jun 16, 2010
    6
    0
    good day..i'm having trouble making a circuit for my rc car. honestly i dont have any idea how to do this..

    here's my plan:
    group1 = 1x5mm LED + 1x3mm LED
    group2 = 1x5mm LED + 1x3mm LED
    *all are bright white

    I wanted to put 4 led for my rc's headlights with strobe effect.when i switch it on group1 flashes first 3 times before group2 flashes 3 times also.and process continues. switch it again and both groups goes steady. switch it again and it goes off.

    i'm a total noob about electronics but i wanted to try this one out. can anyone provide an exact diagram for this.

    thanks so much.
     
    Last edited: Jun 17, 2010
  2. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,173
    397
    Study the post by kuxz2008, top of page upper right find white box, fill in and hit find.
     
  3. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,173
    397
    Now that you have digested the preveous post ref. here.s one attempt to solve the RC car lights. Q3 supplies 3 sequential pulses , OFF, PULSES, ALL ON. At reset Q2 & Q3 "0" pin2, are high. Q3 pin 2 is inverted & inputted to Neg. NOR gate Q10. If all inputs to Q10 & Q9 are high. out is low; if 1 or more inputs go low out is high-giving NOR function from NAND . I cant even copy right, leave out Q6, Q3-2 to Q10-13. With Q10-13 & Q9-5 hi out is lo to both gates ,LED'off. Skipping to ON, operation is the same except signal is inverted, causing LED's to be on. In Pulse position, Q3-1 is hi, disabling Q1 & Q2 resets. Q1 starts free-running outputting clock pulses at pin 3. The 8 sequential pulses from Q2 are diferentiated OR'd & shaped by Q7 & Q8,first giving 3 neg. going pulses at pin 8, second , 3 neg pulses at pin 10. The pulses are inverted by Q9 & Q10, driving FET gates positive, flashing LED.s. Need information on operating voltage, & nature of control switch. Will also need a small shoe-horn to get it all in.
     
  4. zidan3

    Thread Starter New Member

    Jun 16, 2010
    6
    0
    thanks so much sir..i'll try to study it..
     
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