Disclaimer
Learn Arduino is made for learning. Please read this before you build anything real.
For learning
The 3D lab, the projects and the tutorials are for education. We work hard to make them correct, but we cannot promise that every page is free of mistakes, complete, or right for your situation. If you find a mistake, please tell us.
The simulation is not real hardware
The lab imitates an Arduino UNO and its parts closely, but a simulation is simpler than the real world: real parts vary, real wires have resistance, and real boards can behave differently. A circuit that works in the lab may need changes before it works — safely — on your desk.
Working with real electronics
- The projects here run on the low, safe voltages of a USB port or small batteries. Never connect anything to mains electricity (the wall socket).
- Parts can get hot, batteries can leak or catch fire when shorted, and small parts are a choking hazard. Disconnect power before you change a circuit.
- Young learners should have an adult nearby when they build real circuits.
- You build and use real circuits at your own risk. Learn Arduino is not responsible for damage to parts, devices or property, or for injury.
Ads and affiliate links
The tutorial pages show ads from Google AdSense; the 3D lab does not. Some tutorials may in the future link to shops where you can buy parts. If a link pays us a small commission, it will be marked as such, and it costs you nothing extra. We only recommend parts because they suit the project — never because of a commission.
Trademarks
Learn Arduino is an independent project, not affiliated with, endorsed by or sponsored by Arduino S.r.l. "Arduino" and "UNO" are trademarks of Arduino S.r.l. Other product names belong to their owners and are used only to describe what a part is.