555 timer, two motors, two microswitches and a few relays. HELP!

Discussion in 'The Projects Forum' started by Robot_Ric, May 10, 2011.

  1. Robot_Ric

    Thread Starter New Member

    May 10, 2011
    Right, so this is what i want to make
    1. a microswitch is pushed
    2. a motor starts spinning
    Whilst the motor is spinning, if the 2nd microswitch is pushed, then the next motor starts.
    3. When motor 1 stops spinning the motor will continue for the time it should, then when finished the whole circuit idles (nothing happens)

    What i thought was have a 555 timer and wire a relay to cope with the first motor. Then wired with the motor is a 2nd 555 timer circuit, with the output being another motor.

    Ill try to attach a diagram, but i dont know if it will work :p

    At the moment, the motor comes on but the 2nd 555 circuit does not operate.

    So any suggestions (Please remember im a beginner :) )

    <a href="http://s1130.photobucket.com/albums/m538/Robot_Ric/?action=view&current=Circuit.jpg" target="_blank"><img src="http://i1130.photobucket.com/albums/m538/Robot_Ric/Circuit.jpg" border="0" alt="Photobucket"></a>

    If that doesnt work (the picture) heres the link
  2. Wendy


    Mar 24, 2008
    You don't have a signal conditioner on the first 555. As long as that switch is pushed the timer will continue to be high, even after timeout.

    555 Monostable

    This article includes a theory of operation and an explanation why the input conditioner is needed.