30 Comments

  1. December 17, 2011 at 7:32 pm

    Jack Smith

    Very good presentation. Very basic but also very interestin.

    Keep up the Good Work!

    Jack

    Reply
    1. April 16, 2014 at 6:36 pm

      a.j

      yar is circuit ki bread board pe connection to bta do plzzz

      Reply
  2. June 17, 2012 at 9:45 pm

    Naren

    Very good for beginners..

    Reply
  3. June 18, 2012 at 10:31 am

    Sumedhe Dissanayake

    Very very useful.
    Thank you very much..

    Reply
  4. July 15, 2012 at 5:54 pm

    johnny

    super sir pls mail updates to me because i am veerly intereested plssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss sir sir

    Reply
    1. July 18, 2012 at 9:32 am

      Sagar

      subscribe from here: http://feedburner.google.com/fb/a/mailverify?uri=BuildCircuit

      Reply
  5. September 29, 2012 at 1:16 pm

    Prateek

    Very good for beginners

    Reply
    1. December 22, 2012 at 6:51 am

      Dobol

      Iļ»æ am going to use this system to lock and ulcnok the door and turn on and off all utilities (like electricity and internet) to my home datacenter that operates a network for my entire street as well as my small business.

      Reply
  6. November 4, 2012 at 2:58 pm

    saranya devi

    wonder full sir thank you very much sir

    Reply
  7. January 18, 2013 at 2:13 pm

    Soniya

    great one sir,Thanks very much

    Reply
  8. March 26, 2013 at 7:30 am

    DEL

    Thank you sir for providing such amazing information.
    It really helps for us type begineers

    Reply
  9. May 1, 2013 at 4:43 am

    asad

    Awesome………!!!!!!!!!!!! Thanj youuuuuuu……….!!!!!!!!!!

    Reply
  10. August 11, 2013 at 1:29 pm

    Kittu

    Very useful for beginners

    Reply
  11. August 23, 2013 at 10:01 pm

    Anindita

    Very useful…
    nicely explained! šŸ™‚

    Reply
  12. September 18, 2013 at 12:24 pm

    Grandhi Aravind

    Simple Explanation about breadboard
    It is useful for all students who start career in Electeronics

    Reply
  13. September 22, 2013 at 12:06 pm

    dare fasasi

    Well explanatory for amateur…..kudos!!!

    Reply
  14. September 27, 2013 at 2:25 pm

    wajahat hussain

    very useful for every one.

    Reply
  15. October 8, 2013 at 2:24 am

    Alek

    Excellent explanation! Thanks

    Reply
  16. November 6, 2013 at 5:38 pm

    http://nstechcomputers.com/mulberry/replica-mulberry-wallets.html

    my friend, there are a good article.

    Reply
  17. November 13, 2013 at 2:11 pm

    Nikhil Bharadwaj N

    can plese help me to switch on the ldr in morning and switch off in the night

    Reply
  18. March 31, 2014 at 10:17 am

    Satyaban Ukil

    Sir your projects from absolute beginners are very helpful. However, I shall be grateful if you could demonstrate a step to step circuit on breadboard as to how to build a digital clock. The circuit may be very simple as I am absolute beginner.

    Reply
    1. April 8, 2014 at 4:28 pm

      Sagar Sapkota

      I am sorry. I have no time to do that šŸ™ .

      Reply
  19. April 8, 2014 at 4:28 pm

    pet cat clothes

    You should be a part of a contest for one of the most useful sites on the web. I most certainly will recommend this web site!

    Reply
  20. April 16, 2014 at 6:38 pm

    a.j

    plz post its bread board connections

    Reply
  21. August 16, 2014 at 7:02 am

    Tirtha

    Hello,
    Interesting Tutiorial.

    Can you post the same circuit if I am using a 12v dc power supply to light a 12 V led bulb?

    Thanks in advance.

    Reply
  22. October 4, 2014 at 4:50 pm

    domain to look

    Good article thanks for sharing that!!!
    domain to look http://blahc-blahc.net

    Reply
  23. June 15, 2015 at 3:11 pm

    alwin

    sir can I use a 9v battery instead of 6.plz replay..

    Reply
  24. July 24, 2015 at 2:51 pm

    Isaac

    I seriously need help on ma project…. That is building a dark operating switch… Hv no idea and I greatly require your assistance

    Reply
  25. September 6, 2015 at 7:26 pm

    Kent Hartland

    Thank you for this. I added an indicator LED to show that the circuit is ON (even when it is in the light). I used a tri-color LED that morphs from Red to Green to Blue every few seconds, very attractive. Like these:

    http://www.ebay.com/itm/290687687407?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

    I connected it across the + and – of the battery. Since my entire circuit is on a switch (the Automatic setting of a Lo-Hi-Auto selector switch) the indicator LED only runs when the flashlight is in Automatic mode.

    Reply
  26. July 28, 2016 at 9:17 am

    Mr. Master

    It is great but why you use that 100k Ohm resistor? Everything can happen without it… pls somebody explain me.

    Reply

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