LED flasher

this simple circuit using 555 timer will flash one blue (or more) LED within a specified time, the time to make a flash depend on the value of C1 you can add more LEDs for a high level flash, but you have to reduce the value of R3 to 300 ohm or 100 ohm, the maximum current output of (pin 3 of 555) the circuit is 200mA. You can experiment with C1 by reducing or increasing it’s value for diffirent flashing level, this circuit can also flash two set of LEDs alternatively, if you need it you can ask it below and don’t forget to leave a comment below if you need any help.

circuit diagram of simple LED flasher


About Ztronn

hellooo i'm lsid ,i am a DIY (do it yourself) stuff loving kinda guy, i mean i love to build things and posting it on my blogs for the world to see. i love reading about technology and innovation. i love the nature,mysteries of space and of course God. no aliens. kindly let me know what you think about my simple innovations in the comments.
This entry was posted in 555 Timer, LEDs and tagged , , . Bookmark the permalink.

3 Responses to LED flasher

  1. Christine says:

    Good blog post, nice efforts. It couldn’t appear to have been penned any better. Reading this article piece of writing reminds me about my old boss! He usually kept babbling about this. I will email this post to him. Pretty confident he will probably have a high-quality read. Appreciate your posting!.

    Thank you .lol.-Lonezid

  2. loneziddik says:

    Hi johnny, such a long delay (2 mins) is quite long timing, when the c1 charges for a long delay that might pass large current to pin2 of ic and the chip might not stay stable, use 1000uf which is the best and max value

  3. Johnny says:

    can i change the value of c1 to get a long delay approx. 2mins? Thnx

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