💡 Arduino Back-and-Forth LED Flasher
Here's a simple Arduino project that's perfect for beginners — a row of LEDs that chase from one side to the other, then reverse direction and come back.
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Simple project?
Absolutely.
But there's a lot we can learn from it:
🔌 Wiring LEDs correctly
📐 Choosing current-limiting resistors
🤖 Arduino digital outputs
💻 Using loops in Arduino code
⏱️ Controlling timing with delays
🔍 Troubleshooting when an LED doesn't behave correctly
And once the basic version works, we can make it more interesting — change the speed, add more LEDs, create different patterns, or control it with a potentiometer.
Want to build this?
👇 Comment **HOW** and I'll post the complete CircuitWorks Lab tutorial with:
✅ Wiring diagram
✅ Parts list
✅ Arduino code
✅ Step-by-step build
✅ How it works
✅ Troubleshooting guide
⚡ Build it. Test it. Troubleshoot it.
— CircuitWorks Lab