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Help with 555 buzzer

Discussion in 'General Electronics Discussion' started by McDroogie, Jan 23, 2013.

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  1. McDroogie

    McDroogie

    37
    0
    Dec 25, 2012
    I've slowly been trying to build this 555 Buzzer circuit. I was hoping I could get some step by step guidance. I've started by wiring the speakers and the capacitors. Have I wired them correctly?
     

    Attached Files:

  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,448
    2,809
    Jan 21, 2010
    You have connected pin 1 and pin 8 together. That isn't on your circuit diagram.

    Pick one (long) side of your breadboard and call that the top. Make one of those long conductors +ve. (ignore the switch -- you can assume that is off the breadboard -- just connect/disconnect the battery for the moment)

    Make one running along the bottom -ve.

    First connect everything which connects to a power rail. That will be pins 1, 4, and 8.

    Then join any pins that are connected together (2 and 6).

    Then connect components connected to the power rail(s), that is the two 0.01uF capacitors (It would be so much better if the schematic was marked with C1, C2, etc) and the 10k resistor.

    Then connect the remaining components.

    You don't have to do it in that order (but generally you do start with the power rails).

    You may find it useful to mark each component on the schematic as you put it on the breadboard.
     
  3. McDroogie

    McDroogie

    37
    0
    Dec 25, 2012
    that's pin 1 and 5
     
  4. McDroogie

    McDroogie

    37
    0
    Dec 25, 2012
    That's pin 5 connecting the 0.01 uf cap to pin 1
     
  5. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,448
    2,809
    Jan 21, 2010
    Correct, pins 1 and 5.

    Either way, pins 1 and 5 are not connected together.

    Pin 5 is connected to ground (-ve) via a capacitor. Pin 1 is connected to ground directly.
     
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