  *
  * @section Description
  * Demonstration of the Wireless interface and ExternalInterruptPin
- * for wakeup after power down. 
+ * for wakeup after power down. An ATtiny85-20PU running this example
+ * sketch will require 5 uA in power down mode (VWI transmitter).
  *
  * This file is part of the Arduino Che Cosa project.
  */

#if defined(__ARDUINO_TINYX5__)
VWI rf(0xC05A, 0x03, 4000, Board::D1, Board::D0, &codec);
#else
VWI rf(0xC05A, 0x03, 4000, Board::D7, Board::D8, &codec);
#endif

// Connect button with pullup to Arduino Mega EXT2/D19, others to 
// Arduino EXT0; Mighty/D10, TinyX4/D10, Standard/D2 and TinyX5/D2.
class Button : public ExternalInterrupt {
public:
  Button() : 
    ExternalInterrupt(
#if defined(__ARDUINO_MEGA__)
		      Board::EXT2, 
#elif defined(__ARDUINO_TINY__)
		      Board::EXT0, 
#else
		      Board::EXT1, 
#endif
		      ExternalInterrupt::ON_LOW_LEVEL_MODE,
		      true)
  {}

  virtual void on_interrupt(uint16_t arg = 0) 

#include "Cosa/Watchdog.hh"
#include "Cosa/RTC.hh"

// Select Wireless device driver (network = 0xC05A, device = 0x02)
// #include "Cosa/Wireless/Driver/CC1101.hh"
// CC1101 rf(0xC05A, 0x02);

