Welcome to the forum!

Discussion in 'Announcements, Feedback and Site Comments' started by Admin, Jan 21, 2013.

  1. Admin

    Admin Administrator Staff Member

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    Hi,

    I built the 555 Timer Circuits web site because it's a great starting point for many electronic hobbyists. The circuits are fun, inexpensive and easy to build.

    Unfortunately, as the site grows in popularity, so do the questions in my mailbox. I've started to get a backlog and therefore it was time to start this forum. I hope that we can all collaborate with one another and help each other out. I will be answering as many questions as possible and as time goes on we will build up a large knowledge base of questions and answers for any future visitors.

    Thank you for visiting, I hope you have found the site useful. Of course if you have a question or a comment please do post it in the forum.

    Kind regards,

    Phil (Admin)
  2. sandip ghosh

    sandip ghosh New Member

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    dear sir, recently annual science exhibition will be held in my school so as i want to make funny and intelgent circuit to make plz give me some suggestion
  3. Admin

    Admin Administrator Staff Member

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  4. pmunga

    pmunga New Member

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    how 9x9 works interested visitor
  5. Mark Robertson

    Mark Robertson New Member

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    Hello, I recently built the 555 Time circuit (here: http://www.555-timer-circuits.com/pin-configuration.html) and I've double, triple and quadruple checked my wiring on the breadboard. But for some reason my LED lights up once and then stops (it doesn't keep on flashing). I'm using potentiometers instead of fixed value resistors and a NE555N IC. Any help would be much appreciated!
    Thanks,
    Mark.
  6. Robert

    Robert New Member

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    Wil the motor speed controller (6vdc) work with a 3vdc imput ?
  7. Konrad

    Konrad Member

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    Hi,

    I've just joined and want to ask for advice regarding the Police Siren Circuit. My knowledge is limited as I have just taken up the hobby of building electronic 'gadgets'. With reference to the police siren, I constructed it on a breadboard and the result has only been partially successful. When power is applied only one of the two tones is produced. I have found that by almost removing the resistor linking terminal three on the first 555 to the second 555 terminal 5 and wiggling it about both tones can be produced but only when the resistor is moved backwards and forwards. This tells me that the basic circuit is OK but I can't figure out why it does not work without the movemement of the resistor. The bread board is not brand new but the resistor seems to be held quite tightly. has anyone else had this sort of problem with this circuit? Thanks for any suggestions and advice. The website is just what a novice needs to get started in electronics with an abundance of projects using the ubiquitous 555 ic.
    Well done to the person originating it.

    Konrad ;)
  8. Justin

    Justin Member

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    The home page and the forums are a little inconsistent. Mostly just colour, how the home page is red and the forums are blue. I like the blue a bit more than the red personally.
  9. DonB

    DonB New Member

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    Dear Sir,

    My name's Don, I'm from Nottingham, U.K., and I found this site while searching for model railway circuits using the 555.
    I am a keen modelmaker, and several of the projects here will be very useful!

    However, despite doing an electronics course at college some thirty years ago, I am somewhat rusty, so expect some silly questions...
    Apologies in advance for those!

    Don
    Nottingham, U.K.
  10. Admin

    Admin Administrator Staff Member

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    Welcome to the forum Don!

    Ask as many questions as you need, that's what we're here for :)
  11. dad

    dad New Member

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    Phil,


    As you well know, most if not all of the circuits here and the text explaining them AND the actual circuit layout artwork itself is ripped off from here:

    http://www.talkingelectronics.com/projects/50 - 555 Circuits/50 - 555 Circuits.html

    You built this site by taking other peoples work and slapping a copyright mark on it.

    Not cool Phil, not cool.

    - Dad
  12. Admin

    Admin Administrator Staff Member

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    Dad,

    I have full permission to use the circuits thank you.

    Talking Electronics is fragmented and hard to follow for a beginner, the information is detailed in some places but not others. I've enhanced and modified many of the circuits, I've added text, better images, parts lists and videos. Feel free to continue to use the site however, please don't accuse me of ripping talking electronics off.

    Regards,
    Phil
  13. TonyTromp

    TonyTromp New Member

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    hi guys. the TE 555-1 stepper motor driver circuit has a major miistake. it shows the ground conection for the 555 as pin 8 and the Vcc connection as pin 1 ????
  14. TonyTromp

    TonyTromp New Member

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    hello, anybody there?
  15. David Connolly

    David Connolly New Member

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    Hello all. I am a lifelong avid electronic hobbyist and enjoy building projects with the 555 IC. Other things I enjoy are working with IR remote project control as well as IoT, Bluetooth controls, remote control with 433MHz radio and home WiFi.
  16. George

    George Moderator

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    High David, glad to have you here. I have not been on here in a while and see that the board has been very quiet for quite some time. I hope to hear some of your ideas soon.