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sequential-led-lighting-4e0cf6-en.md

Initially all I wanted to do a countdown circuit (very easy) but during tests I decided to improve the project with an automatic come and go light (not very easy).

EXPANDED TECHNICAL DETAILS

Algorithmic Motion Design

This project explores the logic of fluid, non-blocking animations for large LED arrays, ideal for architectural lighting or automotive turn signals.

  • Modulo-Based Shifting: Instead of using nested for loops, the code uses Modulo (%) arithmetic to cycle through pin states. This allows the Arduino to handle user inputs (like a speed-control knob) even while the sequence is active.
  • PWM Fading Curves: Implements a "Logarithmic Fade" using the analogWrite() function. This creates a much smoother, more organic visual effect than simple on/off switching.

Scalability

  • Shift Register Integration: Provides a foundation for using multiple 74HC595 shift registers, allowing the Arduino to control dozens of LEDs with only 3 digital pins.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Sequential LED Lighting"
description: "A sequential LED lights that come and go."
author: "jomar"
category: ""
tags:
  - "lights"
  - "art"
  - "kids"
views: 12482
likes: 2
price: 1499
difficulty: "Easy"
components:
  - "1x Breadboard (generic)"
  - "8x Resistor 221 ohm"
  - "8x LED (generic)"
  - "1x Arduino Mega 2560"
tools: []
apps:
  - "1x Arduino IDE"
downloadableFiles:
  - "https://projects.arduinocontent.cc/7e98a899-125d-4f67-8823-e72502a8ffed.ino"
  - "https://projects.arduinocontent.cc/7e98a899-125d-4f67-8823-e72502a8ffed.ino"
documentationLinks: []
passwordHash: "b71f5aef42e891b288ebe8184189b6ca01f2e41d2e57ad4e760db5f1c6657613"
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seoDescription: "Learn to build a Sequential LED Lighting system with Arduino. Simple and effective DIY project for beginners to master LED control patterns."
videoLinks:
  - "https://www.youtube.com/embed/naNwkLOnrP8"
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/sequential-led-lighting-4e0cf6_cover.jpg"
lang: "en"