reversing dc motor with ne555

Discussion in 'The Projects Forum' started by bojan1975, Nov 5, 2013.

  1. bojan1975

    Thread Starter New Member

    Oct 23, 2013
    Hello. Please help. I need circuit for this.
    astable ne555 circuit for starting motor 12v dc.
    Motor start and run forward about 30 sec, than stop about 5 sec and then start reverse about 10 sec, again stop 5 sec and start forward 30 sec ....... continous
    This is dc motor reversing circuit with pause between forward and back
    Thanks advance
    Last edited: Nov 5, 2013
  2. BillB3857

    AAC Fanatic!

    Feb 28, 2009
    Although possible, it would be complicated. Have you thought about using a microprocessor? Code would be fairly easy with one of them. Then you could use an H-Bridge for the forward/reverse function with the micro doing the timing/sequence.
  3. bojan1975

    Thread Starter New Member

    Oct 23, 2013
    Thank you Bill... But i didnt work with microprocesors. I know how h bridge work. I tested motor with astable curcuit ne555 with h bridge and he works but i dont have pause (stop) between forward and back. Motor running fast forward and immediately fast backward. Thank you for reply
  4. Ramussons

    Active Member

    May 3, 2013
    You could do it using a couple of 555's and a Flip Flop.

  5. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    You could also do it with an H-bridge driven by a CD4017 counter with a 5 sec clock period. Counts 1-6 = forward, count 7 = off, counts 8-9 = backwards, count 10 = off.
    elec_mech likes this.