The astable multivibrator circuit is a classic circuit for flashing two LEDs. It doesn’t have to flash two LEDs though. It can blink just one LED. Or it can create a tone to play on a speaker. First, let me show you the circuit in action: Want to know the theory behind how the circuit […]
How do you become better at electronics? By building lots of circuits.
On this page, you'll find circuit diagrams for a wide range of fun and interesting electronic circuits:
Transistor circuits. 555 Timer Circuits. LED Circuits. Amplifier circuits. And many more.
All circuits come with a component list and a connection diagram, schematic, or build instruction. So you can just start building right away.
If you have any questions about the circuits, just ask in the comment section of the circuit you're curious about.
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Build an Atari Punk Console this evening
Do you want a fun and easy-to-build circuit? Here’s the simple, but fun Atari Punk Console – with schematics and parts list. It’s a quick build, so you can easily build it during an evening. It takes its name from the old Atari computers of the 80s because it makes similar sounds. And after my […]
Blinking LED Circuit with Schematics and Explanation
The blinking LED circuit is like the electronics version of the “Hello World”-program. It’s a simple electronic circuit that gives you a visual cue if it works. It was the first circuit I ever built, and it felt GREAT! The goal is to make a Light Emitting Diode (LED) blink.
Portable USB Charger Circuit
Build this portable USB charger circuit, and you’ll always have access to a charger. Imagine a beautiful summer day. You’re on your way to meet friends for a picnic in the park. But, the park is huge and full of people. Since you don’t know where exactly your friends are, you pick up your phone […]
Portable USB Charger Components And Tools
These are the components you need for building the portable USB charger circuit. These are all pretty standard components, so you can probably get these at your local electronics supplier if you have one.
Blinking Christmas Lights
Christmas is coming up, so why not set aside an hour or two to build this blinking Christmas lights circuit? This circuit is easy to build and it’s something you can put to use right away. I built this and hung it in the window, something my girlfriend loved! The blinking part of the circuit […]