Bread Board and 89c51

Discussion in 'The Projects Forum' started by puremobi, Dec 3, 2008.

  1. puremobi

    Thread Starter New Member

    Oct 20, 2008
    I have programmed a small program with timer in it using 89c51 to light an led.
    The circuit is made on a bread board.
    The outputis very response at all from the microcontroller.
    BUt i also have a project development kit,in which if i plug in my 89c51,the out put is perfect.
    what to do?..
    should i quit bread board..
    any way to fix this..?
    i cant get a single led to glow using bread board..

    i have used voltage regulators,capacitors..but in vain
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    Breadboards and microcontrollers don't work together very well. Too much stray capacitance for the frequencies involved. Beside that, we have no schematic to look at and see if there is some fundamental error.
  3. kahafeez

    Active Member

    Dec 2, 2008
    dude, nothing to be worried of. there may be some mistake in your circuit. or as beenthere said that breadboards dont really work well.... so u try to make the circuit on a veroboard (

    or use a simulator called "Proteus" and do it on computer.... simulating the circuit makes sure that there's nothing wrong with the coding if u are facing any problems then u hardware isnt working.... u can find proteus here

    version 6:

    version 7:

    or use to find other versions