- Blinking LED (delay function)
- Blinking RGB LED
- Circular LED
- Using PCINT to on/off the LED
- Fading LED (Hardware PWM)
- Reading switch
- Reading variable resistor
- Fading LED (Software PWM)
- Software UART to control LED on/off
- Software UART "parrot"
- Binking LED (timer)
- Blinking LED (watchdog)