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Blink – Everyone starts with Blink. Here is the diagram
Difficulty Level: Beginner



Simple Button w/ LED
Difficulty Level: Beginner



Row of LEDs ( Cylon ), for cycling through or other patterning.



LCD Display with Brightness controls.
Difficulty Level: Beginner



Difficulty Level: Intermediate



Blink LED with 555 Timer
Difficulty Level: Intermediate



Ultrasonic Range Finder, with LCD, Buzzer and Menu Buttons
Difficulty Level: Intermediate



Breadboard Arduino – A Precursor for your full embedded design
Difficulty Level: Intermediate