Need help adding an additional timing function

Discussion in 'The Projects Forum' started by paggss, Dec 16, 2012.

  1. paggss

    Thread Starter New Member

    Dec 16, 2012
    3
    0
    I'm trying to add another 555 timer to this circuit board (including another potentiometer) to time another time period. For instance, I want the first system to time a 10 second to 2 minute timer period and the second to do the same. I want to use the same power source, the same Piezzo Buzzer and an 0FF/ON/OFF toggle switch to activate either circuit. Has anyone done this before? I couldn't find anything similar in the forums.
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,126
    3,048
    You'll get more feedback if you post an image that everyone can see.
     
  3. paggss

    Thread Starter New Member

    Dec 16, 2012
    3
    0
    My schematic is not showing up?
     
  4. #12

    Expert

    Nov 30, 2010
    16,298
    6,810
    It's in .sch format.

    I, for one, don't have that program installed on my computer.
     
  5. KMoffett

    AAC Fanatic!

    Dec 19, 2007
    2,574
    230
    You're using ExpressPCB. To post a viewable schematic you can go to File > Export schematic image > 300DPI. This produces a large .BMP file. Too big to post here. I prefer .GIF, so open, crop, and export to a .GIF in MS Office Picture Manager. You could use Paint too.

    Ken
     
  6. paggss

    Thread Starter New Member

    Dec 16, 2012
    3
    0
    Ahhhhh, thanks guys. I didn't know it came out so small. I'll make it bigger and post it. Does this work?

    Thank you all.
     
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