Arduino 101

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Each page below has code and a picture of the circuit:

Blink: The basic blinky LED. Get your feet wet with a simple sketch.

Photo-Blink: Vary the blink rate with a photoresistor. Learn how to sense the real world.

Photo-Buzzy Blink: Now add a piezo buzzer. Learn how to annoy your flatmates!

LED Fader: Fade an LED in and out. Make a digital circuit pretend to be analog.

LED Fader with Control: Use a potentiometer to adjust the LED's brightness. Take control.

Servo Control: Use the pot to control the position of a servo arm. Learn about libraries.