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Home / How to make 120 LED chaser by using IC555 and CD4017 at home

How to make 120 LED chaser by using IC555 and CD4017 at home

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 How to make 120 LED chaser by using IC555 and CD4017 at home





IC555 and CD4017 Schematic below:


IC555 and CD4017 PCB Layout: 



How to make it please video below:



Gerber File and Schematic and PCB in pdf: download





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