555 Timer With LED

Learn electronics by watching this video. This video features a 555 timer chip with an LED. You will learn how to make the LED blink. For the schematic, look here: http://cr4.globalspec.com/blogentry/9863/Electronic-Project-I-Part-2-555-Timer-with-an-LED

Duration : 0:9:24


[youtube P4_LS2QgQNU]

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25 Responses to 555 Timer With LED

  1. polukj says:

    @GarrettStrobel

    @GarrettStrobel
    The short answer is that you can go over the timer itself from pin 2 to pin 6. I just find that it looks neater when you go around. Also, if you burn up the chip, it will make it harder to remove/replace the chip if there is a wire running over it.

  2. GarrettStrobel says:

    Hello, excellent …
    Hello, excellent video so far, one of the most instructional I have found on youtube for 555 timer. I only get lost at the last part where you say to connect pin two to pin six I really cant get a clear read on how you set that up on the soderless breadboard. Did you just go straight around the back of the timer? Can i just go over the timer itself from pin2 to pin6?

  3. MsYuy says:

    THANK U SO MUUCCHH!
    THANK U SO MUUCCHH!

  4. biggiginthesky says:

    asshole
    asshole

  5. sujeshanto says:

    thanks machi !
    thanks machi !

  6. vettefan73 says:

    i am truly sorry …
    i am truly sorry for offending you, i did not mean for it to be offencive/sexist.

  7. polukj says:

    @vettefan73
    Saying …

    @vettefan73
    Saying ‘I have nothing against it” is like saying “No offense” before you say something offensive. It is the attitude about not being able to stand a female explaining circuitry that makes it sexist. Saying ‘I am sorry’ and ‘I have nothing against it’ still makes it sexist, whether you intended the sexism or not is a different story.

    I also take personal offense because I am the one who made the video.

  8. vettefan73 says:

    ok… read the …
    ok… read the last scentance please, “i have nothing agaist it” and they are not exactly “misspelled” i type fast and sometimes my keyboard sticks and doesnt read when i hit a key hence the missed letters. and i know females are just as capable as males, theres just something about a female explaining it. personally i find a female who knows like this attractive, it just sounds weird to me. so maybe b4 u accuse me of being sexist, u should finish reading my comment.

  9. CR4news says:

    CR4news stands …
    CR4news stands behind you @polukj. While we’re glad that @vettefan73 enjoyed the video, it’s a sad state of affairs that such sexism still exists in the year 2010.

  10. polukj says:

    @vettefan73
    And I …

    @vettefan73
    And I cannot STAND it when someone posts sexist comments relating to women in engineering fields. It is even worse when they can’t even spell words like ‘circuitry’ and ‘against’. Next time you post a sexist comment about a female who does a video about electronics, at least spell the components of your comment right or don’t say anything at all. No one needs your kind of attitude in this world. Females are just as capable as males at explaining electronics.

  11. polukj says:

    @smokemansmoker

    @smokemansmoker
    The ‘thing’ being turned with a screw driver is called a potentiometer. It is possible to get an LED to blink every 1-5 seconds, but it depends on the values of your resistors and your capacitor. There are plenty of webpages online dedicated to determining the values. Trying googling ’555 Timer Calculator’ and you may find some good sources.

  12. smokemansmoker says:

    Whats that thing …
    Whats that thing called she turned with a screw driver? And can I get one to work between 1 to 5 seconds between blinks?

  13. faackoof says:

    @pepito01226 I’ve …
    @pepito01226 I’ve used a 555 timer with a 10v source and had no problems, I’ve also heard people using 15v sources. I doubt you will run into a problem by using 12v.

  14. polukj says:

    @pepito01226
    The …

    @pepito01226
    The concern here is making sure that the 555 timer chip that you want to use can support a Vcc (supply voltage) of 12V. Most 555 timers can withstand a Vcc up to 16V. Try a NE555 or a LM555 timer chip. I would double check the maximum voltage ratings of the chip you pick if I were you.

  15. pepito01226 says:

    wow, i like your …
    wow, i like your tutorilal, i was beginning to start my own fader for a computer mod. Which kind of timer chip should i use since im desiding to use 12v and around if not 2 to 7 LED to fade in and out, like a controlled breathing effect

  16. supersanchez1991 says:

    is done. thanks a …
    is done. thanks a lot. i love you

  17. polukj says:

    Here is my …
    Here is my suggestion for adding a switch to your circuit. Take the positive lead (the lead that goes to the + terminal of the battery) and then plug it into an unused row in the breadboard. Attach the switch so that one pin connects to the same row that the positive lead is and another pin in an adjacent row that is not connected to anything else. In the adjacent row, connect a wire leading from there to the row/column you use to provide power to the board. Let me know if you understood this.

  18. supersanchez1991 says:

    wow man is so …
    wow man is so strange the switch was off and the battery drain so bad. the switch is hook up, one wire to the positive lead of the led and the other wire to negative lead of the led. why that happen

  19. supersanchez1991 says:

    for the switch, i …
    for the switch, i try putting it on the negative lead but it did not work, so i put on wire in the negative and the other one on the positive. and it work.

  20. supersanchez1991 says:

    thanks for the help.
    thanks for the help.

  21. polukj says:

    I meant a resistor …
    I meant a resistor of a higher wattage.

  22. polukj says:

    The reason why your …
    The reason why your resistor is getting hot is because there is too much power. Do you know what the power rating of the resistor is (Watts is the unit of measure)? You can use an LED of higher wattage (using 1/4 watt? try 1/2 watt, etc.).

    Generally, I use a resistor of 330 ohms when working with LEDs. If your LEDs are really really bright, I would suggest using a higher resistance.

  23. supersanchez1991 says:

    ok thank you for …
    ok thank you for the info. and i am sorry for been a little stupid, but i have another question. i am making a word with LEDs, the word is LIZ it has 33 LEDs and i am using a 9v battery so i put a resistor of 12 ohms but after the LEDs been on for about 10 seconds, the resistor gets hot. you think i should put a higher resistor? and thank you once again for your help.

  24. seasonedtoker says:

    anywhere on the …
    anywhere on the black/negative wire that gives power to your board or the piece of the circuit you want to trigger with a switch.

  25. supersanchez1991 says:

    ground lead?
    ground lead?