Sunday, 19 May 2019

LED chaser using 555 timer + 4017 ic on breadboard

A tutorial on how to make an LED chaser circuit / sequential LED flasher using 555 timer IC and CD4017 IC on a breadboard.

 Short Explanation of this circuit
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We have used 555 Timer to work in Astable Mode. That means the output changes between  high and low (PIN 3).  The speed is dependent on the R1,  RV1 And C1. Then the Output is send to PIN 14 of 4017 IC. And 4017 IC is a decade counter and has 10 outputs so whenever it feels a high to low transaction at it's clock input which is pin 14.  It changes it's output from 0 to 10 and that looks like LED's are chasing each other.





Components Required:
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* 555 Timer IC
* CD 4017 IC
* LED Lights X10
* Resistors: 100VR, 10K and 220
* Capacitor: 10uF
* Breadboard
* Lot of Breadboard Connectors
* Power Supply: (5-9)V

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2 Comments

  1. A Shahin21 June 2019 at 12:18

    Today I learned a lot off about 4017 IC. Thanks

    ReplyDelete
    Replies
    1. Automation BD2 August 2019 at 02:31

      Thanks. Subscribe our YouTube channel and stay with us.

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