The Arduino

The following activities will help you get acquaintated with the Arduino.
The activities get a little trickier as you progress down the list.

Introduction to the Arduino
Arduino and a Flashing LED
Arduino and a 7 Segment LED
Analog vs Digital in Electronics
Arduino, Buttons and Fading an LED
Arduino and the Tilt Switch
Arduino and the Photoresistor
Arduino and the Potentiometer
Arduino and Traffic Lights
Arduino Review