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Electronics => Electronics => Topic started by: blackbeard on November 07, 2009, 07:56:47 PM

Title: can't find a single functional 555 circuit
Post by: blackbeard on November 07, 2009, 07:56:47 PM
i don't know why this is but none of the 555 circuits i find seem to work. i've replaced the 555 several times and i still can't get it to work. can someone give me a 555 led flasher circuit that they KNOW works so i can test it out? i must be doing something wrong but since all the diagrams i see look completely different and some even look like they short circuit themselves.
Title: Re: can't find a single functional 555 circuit
Post by: billhowl on November 07, 2009, 08:02:46 PM
Try this circuit
(http://www.electronics-project-design.com/images/LEDFlasherSchematic.GIF)
(http://wild-bohemian.com/electronics/images/blink-dia.gif)
Title: Re: can't find a single functional 555 circuit
Post by: Soeren on November 07, 2009, 08:58:02 PM
Hi,

i don't know why this is but none of the 555 circuits i find seem to work.
Post a couple of links to what you cannot get to work.
Some of the circuits on the net is not working. but if you have tried several, I assume you are doing something wrong.
Title: Re: can't find a single functional 555 circuit
Post by: blackbeard on November 07, 2009, 10:05:22 PM
Hi,

i don't know why this is but none of the 555 circuits i find seem to work.
Post a couple of links to what you cannot get to work.
Some of the circuits on the net is not working. but if you have tried several, I assume you are doing something wrong.


well i found the problem. i've had an lm311n in the socket instead of a 555 :P