* 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
• ?

Not covered:

• Interrupts
  • External :: switch controlled LED rewrite (w/ and w/o state)
  • Timers :: blink LED rewrite
  • Multiple external :: Multiple switch-based {something}
• Watchdog timers
• Libraries
  • 7-segment displays
  • LCD displays
• Communication buses
  • Serial
  • SPI
  • I2C
• Switch matrices