20 lessons
Crack the Code: from first blink to your own inventions
Learn physical computing with the Crack the Code shield and traffic light: a guided path through lights, sensors, sound and creative inventions.
Explore this path →
All projects
Learning paths
Start with the essentials. Build one idea at a time.
8 lessons
EagLED experiments
Eight hands-on projects with an accurate 3D EagLED, explained programs and browser programming. Explore LEDs, buttons, light sensing and sound.
Explore this path →26 lessons
Uno R3 Learning Kit · 26 interactive tutorials
Explore every part of your kit with narrated 3D builds and runnable Arduino programs.
Explore this path →