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LIVE · 177 LESSONS · 22 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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12 INTERACTIVE LABSComponent LabMultimeter, logic gates, LEDs, PWM and more — move a slider, see the circuit react.Enter →74 QUESTIONS · 6 QUIZZESQuiz Lab3 levels, 3 themed quizzes, a Daily 5 with streaks and a 60-second Lightning Round.Enter →5 BRAIN GAMESArcadeLight It Up, Gate Lock, Binary Blitz, Resistor Memory, Simon LED.Enter →
⚡ TODAYDaily 5 — five new questions every dayPlay →
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FACT EP.177 · Myth or FactMyth or Fact #15: "Airplane mode makes your phone charge faster" EP.176 · Explained SimplyExplained Simply #10: What is a semiconductor, really? EP.175 · Electronics Basics · 13Electronics Basics L13: Make it beep — the 555 as a tone maker EP.174 · Why does…?Why does…? #15: Why does your phone charge slower when it's almost full? EP.173 · Smart BuyerSmart Buyer #11: Smart plugs — what to check before you buy EP.172 · Workbench Skills · 5Workbench Skills Part 5: Measure resistance the right way EP.171 · QuizQuiz #14: Which battery is 9 volts? → B, the box with snaps (PP3) EP.170 · LED Series · 13LED Series Part 13 / Arduino C++ L10: Two LEDs, two speeds — multitasking with millis()
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Mini-course LED SeriesFrom what an LED is to controlling it with code, one 20-second lesson at a time. 13 of 14 lessons out Mini-course Arduino C++ SeriesThe C++ you actually need for Arduino, one idea per reel. 10 of 11 lessons out Mini-course Electronics BasicsResistors, dividers and the laws behind every circuit. 13 of 15 lessons out Mini-course Capacitor SeriesHow capacitors store energy, keep time and clean up power. 6 of 7 lessons out Mini-course MicrocontrollersWhat MCUs and MPUs are, and how to choose one for a project. 8 of 9 lessons out Mini-course Maths for ElectronicsEvery formula an electronics beginner needs, shown working on a real circuit. 14 of 15 lessons out Mini-course Embedded CLearn the C that real embedded engineers write — straight on the chip, one 20-second lesson at a time. 7 of 26 lessons out Mini-course Motors & DriversDC motors, drivers, servos and steppers: wire them right and control them from code. 6 of 7 lessons out Mini-course Home ElectricalFind faults, save power and stay safe with the wiring in your own home. 10 of 11 lessons out Mini-course Everyday TechMind-blowing electronics inside the things you touch daily: mouse, touchscreen, charger, Wi-Fi and more. 5 of 6 lessons out Mini-course SensorsHow electronics feel heat, light, distance and motion, and how an Arduino reads them. 4 of 5 lessons out Mini-course ChipsThe chips inside your phone and laptop: chipsets, nanometres, how chips are made, explained in 20 seconds. 5 of 7 lessons out Mini-course Workbench SkillsThe hands-on skills every maker needs: the multimeter first, then breadboard, soldering, datasheets and the scope. 5 of 12 lessons out Mini-course PCB Design with KiCadFrom idea to a real board in your hands with free KiCad: schematic, footprints, routing, Gerbers and ordering. 4 of 17 lessons out Mini-course Trending: the 'Flying' Tesla RoadsterElon Musk's trending 'flying car' (revealed 15 Oct 2026) in 9 short reels: what happened, how air thrusters, carbon-fibre tanks and fan suction work, the maths, the myths and the history. 9 of 9 lessons out
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Myths, quizzes, stories & more

Why does…? Why does…?Everyday electricity questions answered in 30 seconds. 15 of 18 lessons out Myth or Fact Myth or FactPopular beliefs about phones, power and safety, tested. 15 of 20 lessons out Quiz QuizQuick questions to test yourself, answer in the comments. 14 of 17 lessons out Smart Buyer Smart BuyerWhat to check before you buy chargers, bulbs, inverters and tools. 8 of 14 lessons out Tech Story Tech StoriesTrue stories behind the inventions you use every day. 6 of 21 lessons out Explained Simply Explained SimplyBig, mind-blowing tech ideas (GPS, Wi-Fi, memory, computers) explained so simply that anyone gets it in 30 seconds. 10 of 15 lessons out