Electronics Basics

Course introduction

Students learn the fundamentals of electronics and start building real circuits on a breadboard. Early projects run on a battery before the Arduino is introduced.

About this course

Covers voltage, current, resistance and Ohm's Law, then puts them to work: the first LED circuit, traffic/police light patterns, a push-button electronic dice, and an RGB mood lamp using PWM.

Electronics මූලික සිද්ධාන්ත — voltage, current, resistance සහ Ohm's Law — breadboard එකක් මත circuits build කිරීම.

What you'll learn

• Explain voltage, current and resistance
• Use Ohm's Law (V = I × R)
• Read and wire a breadboard
• Build LED, buzzer and RGB projects

Lesson plan

1. Voltage, Current, Resistance & Ohm's Law — Grasp the core quantities and Ohm's Law.
2. Breadboard, LED, Resistor: First Circuit (LED Blink) — Wire and light your first LED safely.
3. Traffic Light & Police Light Projects — Sequence multiple LEDs into patterns.
4. Push Button & Buzzer: Electronic Dice — Read a button and drive a buzzer to build a dice.
5. RGB Mood Lamp (analogWrite / PWM) — Mix colours with PWM on an RGB LED.