• Program structure
  • Main loop
  • Blinking an LED (“Hello world”)
• Basic interaction
  • Polling
  • Switch controlled LED
• Digital Input
  • State
  • Debouncing (H/W or S/W only)
  • Toggling state (on/off light)
  • Multiple state (multiple lights on/off)
• Serial communication
  • ?
• Analog Input
  • ADC
  • Reading ADC from e.g. photosensor
  • Night light
  • Light meter
• Digital Output
  • ?
• Analog Output
  • PWM
  • Variable-brightness LED

• Communication buses
  • Serial
  • SPI
  • I2C

• Interrupts
  • External
  • Timers
  • Multiple external
• Watchdog timers
• Libraries
  • 7-segment displays
  • LCD displays
• Switch matrices

• user functions
• variables → introduced in Program structure
• flow control
  • selection
    • if-else → introduced in Basic Interaction
    • switch?
  • repetition
    • while
    • for

Many of the examples here borrow from or are based on the examples at http://arduino.cc/en/Tutorial/HomePage.