Week 5 · Electronics foundations

Electricity, circuits and safe component handling

Software tells hardware what to do — but first you need to understand what electricity actually is. Today you will light an LED, measure what is happening, and calculate the resistor that keeps it alive.

Electronics, robotics and IoT90 minutesBeginnerLevel 1 module

In this lesson you will

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Explain voltage, current and resistance using a water analogy
Use Ohm's law (V = I × R) to choose a resistor for an LED
Build a working LED circuit on a breadboard, the right way round
Measure voltage and resistance with a multimeter and handle components safely

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Enrolled students get the complete notes: essential theory, key terms, a step-by-step practical walkthrough, an independent challenge, check-your-understanding questions and the take-home task.

Electricity, circuits and safe component handling

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