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Scoop.it!
In this tutorial I am going to create a Police Light themed LED Flashing circuit using the 555 timer IC. 
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Scoop.it!
In this project, we will just take the visual aspect of the police lights and implement them in our own way. The circuit uses 555 timer and a decade counter IC CD4017. Here, the 555 timer runs in Astable mode. Decade counter 4017 counts the incoming pulses and activates its outputs i.e. for the first pulse Q0 becomes high and for second pulse Q1 becomes high and so on again for 10th pulse Q0 state becomes high.
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