100 LED Chaser Circuit Using IC555 and CD4017

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A Chaser Circuit consists of a clocked IC or other electronic unit like an Arduino that drives an array of LEDs in such a way that individual LEDs (or small groups of LEDs) turn on and off in a predetermined and repeating sequence producing a visually attractive pattern.In this tutorial I am going to create a chaser circuit that can drive 20 or more LEDs using 555 timer IC and CD4017 decade counter. Watch this video for detailed step by step instructions on how to build this circuit and for a complete instruction on how the circuit works.

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References

GitHub: View Gerber: Download DIY 555 Pulse Generator Module: https://youtu.be/bMAnipPOjFo

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