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LIVE · 74 LESSONS · 18 SERIES · 100% FREE

Learn electronics in 30-second lessons

Short, clear video lessons for total beginners — from your first LED to Embedded C. Watch one on the bus, understand it for life.

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Start here: total beginner path

Watch these 9 in order. No maths, no experience needed.

01 EP.01 · LED Series · 1What actually happens when you turn ON an LED? 02 EP.02 · LED Series · 2Why does an LED burn without a resistor? 03 EP.09 · Electronics Basics · 1Why does a resistor resist current? 04 EP.15 · Electronics Basics · 4AC vs DC 05 EP.13 · Maths for Electronics · 3Series vs parallel resistors 06 EP.04 · Microcontrollers · 1Microcontroller vs Microprocessor 07 EP.03 · LED Series · 35 lines of C++ → a real LED turns ON 08 EP.05 · LED Series · 4Make it BLINK 09 EP.10 · LED Series · 6Control it with a BUTTON
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MYTH EP.74 · Myth or FactMyth or Fact: "A TV on standby uses no power" EP.73 · Electronics Basics · 11The inductor: the coil that fights change EP.72 · Why does…?How does a microwave heat your food? EP.71 · Tech StoryTech Story: the first computer bug was a real moth EP.70 · Motors & Drivers · 4Two motors: a robot car EP.69 · QuizQuiz: brown-black-red-gold, what value is this resistor? MOSTLY MYTH EP.68 · Myth or FactMyth or Fact: fast charging damages your battery EP.67 · Sensors · 2LM35: the chip that speaks °C
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Mini-course LED SeriesFrom what an LED is to controlling it with code, one 20-second lesson at a time. 11 of 12 lessons out Mini-course Arduino C++ SeriesThe C++ you actually need for Arduino, one idea per reel. 8 of 9 lessons out Mini-course Electronics BasicsResistors, dividers and the laws behind every circuit. 11 of 12 lessons out Mini-course Capacitor SeriesHow capacitors store energy, keep time and clean up power. 4 of 5 lessons out Mini-course MicrocontrollersWhat MCUs and MPUs are, and how to choose one for a project. 4 of 6 lessons out Mini-course Maths for ElectronicsEvery formula an electronics beginner needs, shown working on a real circuit. 12 of 13 lessons out Mini-course Embedded CLearn the C that real embedded engineers write — straight on the chip, one 20-second lesson at a time. 5 of 26 lessons out Mini-course Motors & DriversDC motors, drivers, servos and steppers: wire them right and control them from code. 4 of 5 lessons out Mini-course Home ElectricalFind faults, save power and stay safe with the wiring in your own home. 8 of 9 lessons out Mini-course Everyday TechMind-blowing electronics inside the things you touch daily: mouse, touchscreen, charger, Wi-Fi and more. 3 of 4 lessons out Mini-course SensorsHow electronics feel heat, light, distance and motion, and how an Arduino reads them. 2 of 4 lessons out Mini-course ChipsThe chips inside your phone and laptop: chipsets, nanometres, how chips are made, explained in 20 seconds. 3 of 4 lessons out
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Myths, quizzes, stories & more

Why does…? Why does…?Everyday electricity questions answered in 30 seconds. 3 of 10 lessons out Myth or Fact Myth or FactPopular beliefs about phones, power and safety, tested. 3 of 10 lessons out Quiz QuizQuick questions to test yourself, answer in the comments. 2 of 10 lessons out Smart Buyer Smart BuyerWhat to check before you buy chargers, bulbs, inverters and tools. 1 of 10 lessons out Tech Story Tech StoriesTrue stories behind the inventions you use every day. 1 of 10 lessons out