Electronics

Hands-on places to learn electronics by actually building things.

Tutorials

• SparkFun Learn (Website) — 900+ hands-on tutorials spanning Arduino, sensors, wireless, and robotics, from your first blinking LED to full projects, each tied to real hardware.
• Basic Electronics Tutorials (Website) — a free, encyclopedic reference organized into 30+ categories, from Ohm’s law, resistors, and capacitors through op-amps, logic gates, and oscillators, each topic explained with worked examples.
• Adafruit Learning System (Website) — 3,000+ maker tutorials from Adafruit covering CircuitPython, Arduino, Raspberry Pi, sensors, and LEDs, written for every skill level.