Electronics

Learn Arduino in 3D: wire it up and run code in every lesson

An Arduino / ESP32 simulator that runs in your browser

Drag components to build a circuit, then write the Arduino code

The classic circuit simulator: draw it, watch the waveforms

Build circuits in 3D, like a game

The official Arduino documentation and tutorials

Step-by-step guides with parts, wiring and code

From "what is a resistor" to building your own project

A huge pile of hands-on ESP32 / ESP8266 / Arduino tutorials

The official project library — borrow what others already built

A hardware project community, from toys to industrial builds