  * Lesser General Public License for more details.
  *
  * @section Description
- * Cosa demonstration of the DS1307 I2C/Two-Wire Realtime clock device.
+ * Cosa demonstration of the DS1307 I2C/Two-Wire Realtime clock
+ * device; read and write RAM, square wave signal generation, and time
+ * keeping.
  *
  * @section Circuit
  * @code

  latest.run.to_binary();

  // Print the latest set and run time
  trace << PSTR("set:") << latest.set << endl;
  trace << PSTR("run:") << latest.run << endl;

  // Set the time. Adjust below to your current time (BCD)
  time_t now;

  uart.begin(57600);
  trace.begin(&uart, PSTR("CosaDS1307: started"));

  // Start the watchdog for low power yield
  Watchdog::begin();

  // Read the latest set and run time
  latest_t latest;
