Electronics · Learn, measure and build
Electronics: lessons, reference guides and the gear we use
Everything on our site for learning electronics, in one place. It’s all free and there’s nothing to sign up for. Start with the ideas, build ten small circuits, learn to measure what you’ve built, and look up the battery, plug or screw in front of you.
New to electronics? Start here
One lesson takes you from “what is a volt?” to a working circuit you programmed yourself. It stays at safe, low voltages the whole way, and it ends with two first projects on a breadboard.
In the first lesson
- Safety first
- Voltage, current and resistance
- Reading a circuit diagram
- Resistors
- Capacitors
- Diodes and LEDs
- Transistors
- From voltages to 1s and 0s
- Project 1: blink an LED
Then build
Learn
Lessons in the order we’d read them.
Look it up
Reference pages for the part in your hand, with drawings to scale and tables you can search.
The gear we use
Only what’s on our own bench, bought with our own money. Each one links to our write-up first, so you can see why we chose it before you look at a shop.
EEVblog BM786 multimeter
The meter we measure everything with: 60,000 counts, true RMS, HRC-fused current inputs, rated CAT III 1 kV and CAT IV 600 V. We bought it from the EEVblog Store, with a soft case and spare fuses.
Why we bought it Our user guide See it at the EEVblog Store See it on eBay (paid link — eBay)
The eBay link is a paid link: as an eBay Partner, Digital Greenhouse may be compensated if you make a purchase through it. It never changes the price you pay or what we recommend. The EEVblog Store link is not a paid link.