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  • Here is a simple Dancing LED Circuit. The LEDs turns on/off alternately giving a dancing appearance. It is a simple Astable multivibrator using two NPN transistors.

    It works on the principle of charging and discharging of capacitors C1 and C2. Current from the positive of battery flows through first set of LEDs D1-D3 to the collector of T1 through resistor R1. Resistor R1 limits current through the LEDs to protect them. The current through R1 charges capacitor C2. It then discharges through the base of T2 and resistor R4. This gives base current to T2 and it conducts. As a result second set of LEDs D4-D6 lights as the current flows through T1.Capacitor C2 again charges and the cycle repeats.

    Dancing Light Circuit

    The same thing happens in the other side also. This gives alternate flashing of LEDs.

    attentionThe author D Mohankumar is not an active member anymore. Please take into consideration that the presented information might not be correct.
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    11 Responses to "Dancing Light Circuit"

    1. Zulker nien says: on January 8, 2011 at 9:56 am

      Is the brightness will same between two set of led (D1-D3 & D4-D6)?

    2. mohammed noorul irshad says: on June 26, 2011 at 4:39 pm

      i need clap switch simple circuit , simple way of making clap switch

    3. dinesh shivhare says: on October 12, 2011 at 7:20 pm

      sir plz send me layout of this dancing light !!!

    4. Prince Choudhary says: on October 15, 2012 at 4:56 pm

      Send me circuit diagram of dancing light and also component list

    5. Sreekumar.p says: on November 20, 2013 at 11:26 am

      Send me the name of componets and the circuit of the dancing light and the explanation

      • The written material is the “explanation”, the Diagram (picture of some lines and circles) is the “Circuit” and the Alpha-Numerical notations in the diagram are the “names of the Components”

        Hope it Helped :P

    6. sumit chaurasia says: on December 4, 2013 at 8:44 pm

      Send me the explanations of dancing light

    7. i want adjustable dancing led lights with 12 led circuit diagram………

    8. plz tell me uses of dancing lights

    9. mauricio jaimes says: on February 9, 2015 at 2:37 am

      its fantastic,so genial

    10. can u tell me an estimate or accurate value for the output and input current for this circuit?

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