Free course

Your first electronic circuit

Understand a breadboard, light an LED and learn to troubleshoot a simple circuit.

Skills you’ll gain:

Ohm's Law (V=IR)Breadboard TopologyLED PolarityCurrent LimitingCircuit DebuggingLow-Voltage Safety

Enrol for free to unlock all lessons and save your progress.

Duration & Pacing45–60 Minutes

Self-paced with practical lab tasks

Skill LevelBeginner

None · Starts from complete fundamentals

Practical Benchmark75% Hands-on breadboard

Hardware wiring & test exercises

VerificationKnowledge Check

Instant feedback with concept analysis

What you’ll learn

Calculate voltage, current, and resistance using Ohm's Law for safe DC circuit prototyping

Understand internal breadboard bus rails, power distribution, and component isolation

Wire LEDs and resistors in correct polarity and safely verify operation with regulated 5V power

Troubleshoot common circuit faults systematically using one-change-at-a-time methodology

Voltage, current and resistance
15 minsCore Theory & Math
Master Ohm's Law (V=I×R), LED directional polarity, and safe bench supply parameters.
Build the LED circuit
25 minsHands-on Breadboard Build
Map power rails, wire 330Ω current-limiting resistor, and test LED forward-bias current.
Troubleshoot one change at a time
20 minsSystematic Troubleshooting
Diagnose short circuits, reversed polarity, open loops, and record reproducible test notes.

Includes a comprehensive final knowledge check to validate conceptual mastery.

Capstone Hardware Build

Put these circuit skills into practice with the verified bench build guide, parts list, and testing steps.