  * @section Circuit
  * Designed for a LCD Keypad shield with 16x2 HD44780 LCD and six 
  * buttons. Alternatively connect potentiometer to Analog pin 0.
+ *
+ *                           HD44780
+ *                       +------------+
+ * (GND)---------------1-|VSS         |
+ * (VCC)---------------2-|VDD         |
+ * (D10)--(BT)---------3-|VO          |
+ * (D8)----------------4-|RS          |
+ *                     5-|RW          |
+ * (D9)----------------6-|EN          |
+ *                     7-|D0          |
+ *                     8-|D1          |
+ *                     9-|D2          |
+ *                    10-|D3          |
+ * (D4/D0)------------11-|D4          |
+ * (D5/D1)------------12-|D5          |
+ * (D6/D2)------------13-|D6          |
+ * (D7/D3)------------14-|D7          |
+ * (VCC)--------------15-|A           |
+ * (GND)--------------16-|K           |
+ *                       +------------+
  * 
  * This file is part of the Arduino Che Cosa project.
  */

  cout << value << ' ';
  draw_bar(((value * 100L) + 100) >> 10, lcd.WIDTH - 5);

  delay(500);
}


  draw_spaces(cout, percent, 100);
  cout << percent << PSTR("% ");
  draw_bar(percent, lcd.WIDTH - 5);
  percent += 2;
  if (percent > 100) percent = 0;

  // Analog sample (keypad) horizontal bar
