🤖 Build a Line-Following Arduino Robot from Scratch

Step-by-Step Lecture Notes + Schematics + Code (Downloadable PDF)

Learn how to design, build, and program your very own line-following robot from the ground up! Whether you're a beginner in electronics, a robotics hobbyist, or an educator looking for an engaging STEM project, this downloadable PDF lecture guide gives you everything you need—clearly explained and ready to implement.

📘 What’s Inside the PDF?

• Full Lecture Notes & Step-by-Step Instructions
  • Written in a practical, beginner-friendly tone
  • Ideal for students, hobbyists, and teachers
• Robot Design Fundamentals
  • Introduction to autonomous robots and sensors
  • Design layout and component breakdown
• Electronics & Components Guide
  • Arduino Uno / Nano basics
  • Infrared sensors, motor drivers (L298N), chassis assembly
  • Wiring diagrams, breadboard layouts, and safety tips
• Programming the Robot
  • Arduino IDE setup
  • Full Arduino code for line detection and motor control
  • Code explained line by line
  • Adjusting speed, turning logic, and sensitivity
• Testing, Debugging & Optimization
  • Sensor calibration
  • Common mistakes and troubleshooting tips
  • How to modify for curves, speed, and line thickness

🛠️ Tools Required (Minimal)

• Arduino Uno or Nano
• IR Sensor Module
• L298N Motor Driver
• 2 DC Motors + Wheels
• 1 Chassis Kit (or DIY frame)
• 9V or Li-ion Battery Pack
• Jumper Wires & Breadboard (optional)