How to Drive 20+ LEDs with 555 & CD4017 ICs! 🛠️ #arduino #experiment #digitalroulette

Sep 6, 2026

Want to drive 20, 50, or even 100 LEDs in a chasing sequence using 555 Timer and CD4017 Decade Counter ICs? 💡🔧

This tutorial covers the entire process, from designing the PCB layout to soldering the components for a perfect LED sequence. It is the perfect project for hobbyists looking to level up their electronics skills with classic timing ICs.

Check out the schematic and component list in the pinned comment below.

👇 Watch the full detailed tutorial & schematic guide here:
https://youtu.be/paxPiBps6Mk

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