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LED String / Strip Circuit Diagram Using PCR-406

LED String / Strip Circuit Diagram Using PCR-406

It is a very nice and interesting circuit of blinking/Dancing LED String / Strip.
you should try to make one at home because it is very simple and cheep and the basic components of the circuit available everywhere such as an electronics shop.
This LED Strip/String circuit (Dancing/Blinking LED Circuit) is an interesting circuit where LED bulbs light and glow in different ways like “Dance” and “Blinks” in the following series:
  • Combination
  • In Waves
  • Sequential
  • Slo-Glo
  • Chasing/Flash
  • Slow/Fade
  • Twinkle/Flash
  • Steady On.
so here, we are going step by step to make one of this led blinking and dancing circuit.
inside the box. this is the basic circuit on general purpose PCB. ( Back Side of the PCB)
Click Image to enlarge


Without Box (different views)

Transistor PCR-406
Back view of the Blinking LED Circuit (PCB)

LED String/Strip Circuit Diagram Using PCR-406Dansing Blinking LED Circuit using Transistor pcr-406

This is the front side of the LED circuit (Front view).


Now turn around the simple  schematic Circuit Diagram of funny LED circuit. it is very simple and easy, DIY (Do it yourself) and homemade. And you must try to make one at home :).

diagram of LED String/Strip Circuit using PCR-406

Description of the LED String Circuit.

SCR 1 and SCR 2 = PCR 406 PNPN
D1 = IN 4007
C = 10μF, 16 V
R1 = 2MΩ
R2 = 150kΩ
LED = 60 Nos
IC/Chip (Programmable) = Y803A
Tactile Switch = Pattern Change
Input Voltage
220V, 50-60 Hz
when you complete the circuit on general purpose PCB or breadboard, then connect 60 Nos of LED (white or whatever color you want…) … here is the different colors and shapes

LED Strip String

We have completed our LED String circuit successfully…

Time of  LED STRIP Circuit…One of the most powerful LED Strip/String Circuit Diagram..
you can see some of the following LED Strip images…we will make its Circuit latter after your  review and comments.
Here is some of LED STRIP Images
LED Funny Circuit LED STRIP LED STRING LED ARRAY LED Christmas Tree circuit LED Amazing Circuit lights Fun with LED Circuit 60 WHite LED Circuit

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  1. NAGA YADAV says:

    where is the program for chip….?

    1. Electrical Technology says:

      It isn't a programmable IC….i.e. its already programmed

  2. Anonymous says:

    where did u get that IC from cant find it

    1. Electrical Technology says:

      you can find it easily In Electronics Components Store…

  3. Anonymous says:

    Awesome things here. I&#39;m very glad to look your <br />post. Thank you a lot and I am looking forward to touch you.<br />Will you please drop me a e-mail?<br /><br />Feel free to visit my web site: <a href="http://www.luna930812.com/xe/?document_srl=50286&quot; rel="nofollow">матрак матера</a>

  4. Anonymous says:

    What is Y803A ? Working of Y803A?

    1. Electrical Technology says:

      It is already programed Chip.

  5. Anonymous says:

    I think Mr. Wasim dont want to answer my question regarding procurement of Y803A IC. Thank you .

    1. Electrical Technology says:

      Dear…I don&#39;t live in India… So i cant help you to find that IC/Chip in your city…Please contact any Electronics Store manager. he will guide you. Thanks

    2. Jēkabs Reinis Pērkons says:

      Which country do you live? I can&#39;t find this chip even at any internet store!!! 🙁

      1. severino edson amancio says:

        é só você comprar um pisca pisca de arvore de natal , e retira o controle das lampadas .

    3. Electrical Technology says:

      Dear…One of my friend (Importer) import it from chine (4 me)… you can find them on Google or Submit your E-mail….I will send the list of all companies which provide any kind of information for dealing.

    4. emerging technologies says:

      please send details where i can buy it?

  6. bibershally says:

    The electricity usage is important and the development of LED helps humans to save electricity as the research found that more than 30% energy is saved by those houses who using the <a href="http://www.autopal.net.in/&quot; rel="nofollow">Low Voltage Led Lighting</a>.<br />From such circuit diagram alone also make the damage led in proper way without spending or purchasing the new one, while reading I

  7. The circuit as published is dangerous as it is missing the load resistors (these are not in the control box but fitted to the first LED in the strings). These should be 5K, one in each string, to limit current to 20 ma. Also, the ones fitted at manufacture are 1/8 watt and are totally inadequate. You can get away with 1 watt, but ideally fit 5 watt resistors. You can replace the custom IC with a

  8. Jayanath Ranasinghe says:

    can increase another channels i mean up to 300 leds?

    1. Electrical Technology says:

      wait to update the circuit…

  9. Anonymous says:

    how can i convert it into 12v power supply??<br />thanx in advance…

  10. Anonymous says:

    drive it to 12v??is it possible?how?

  11. Wonderful post! We are linking to this great post on our site.
    Keep up the great writing.

  12. Thanks very nice bloɡ!

  13. pammu saini says:

    hey guys !!
    u can buy it anywhere.. it is available everywhere
    it is a chinease product
    in india i buy it for just 20 rupees
    u can find its price in between 20 – 50 indian rupees
    or in just $ 0.33 – 0.82 dollars

    1. Hi Pammu

      Where exactly I get this (Y803A)Chip.?…
      Pls provide me their contact details and location.

  14. Can’t find the chip and 2 mistakes on shematic

  15. This iss very fascinating, You’re an excessively professional blogger.
    I have joned your feed and look forwaed to looking for exgra of your magnificent post.

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  16. Pretty! Thhis was a really wonderful post. Thank you for supplying this information.

  17. Having read this I believed it was rather enlightening.

    I appreciate you spending some time and effort to put this short article
    together.I once again find myself personally spending
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    But so what, it was still worthwhile!

  18. L.D.Desai says:

    Good IC.but any importer for INDIA?

  19. PCR406 What else can be replaced

  20. Can i used similar componen? And what it is?

  21. Hy, i have next situation: from 4 SCRs i gues all its broken, i put a diode to close circuit and i check the 4th line of lights. I have about 195Vdc to terminals. After that just one lighting. Who knows what is the voltage to collector of PCR406J, in may case i have 198Vdc, but is alright that???
    And way if i try to connect a line to 220Vdc some bulbs from 2lines lighting to low….is possible to been short circuit with other line???

  22. Hi, I need modification of cheap Christmas garland lights for my diorama

    it is going to be battery operated (2x CR2032 6v in series or even 1 battery if possible 3v) an I will use only four 3mm led, i need ic yt803a for different programs (it has 8 modes)

    This schematic of circuit is originally 220v ac powered. Which modification of circuit do I need for it to be operational for my diorama (probably modification of resistors and diode); I need minimum number of parts because the circuit is battery operated.

    Enclosed images show versions with 2 and 3 transistors but circuit is the same.

    Thank you in advance!

  23. Mr. Milind Modak says:

    I’m interested in “led string/strip circuit, Using pcr-406 & y803a-ic”.Please inform me where do I get ic & scrs.
    Locally it is not available. So please inform me contact details of either company (may be from China or Taiwan) or dealer in Mumbai.
    Thank you & have a nice day.

    1. Hi
      Have you got y803a

  24. Halo, how to remove the light combination to make just steady on. coz i dont need blink-blink effects.

  25. I would like to buy y803 ic. If you know any importer in INDIA please let me know. My mail id is binurajmr1989@gmail.com
    . It’s urgent

  26. Hy, i have this board in my led string.

    Can you tell me how to modify it to just letting the String powered on all the time? Thanks!

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