add LcdDemo

examples/LcdDemo/LcdDemo.ino

@@ -0,0 +1,33 @@
+// Demo sketch for an LCD connected to I2C port via MCP23008 I/O expander
+// 2009-10-31 <jc@wippler.nl> http://opensource.org/licenses/mit-license.php
+
+#include <PortsLCD.h>
+
+PortI2C myI2C (1);
+LiquidCrystalI2C lcd (myI2C);
+
+void setup() {
+  Serial.begin(57600);
+  Serial.print("\nLCD Demo");
+  // set up the LCD's number of rows and columns: 
+  lcd.begin(16, 2);
+  // Print a message to the LCD.
+  lcd.print("Hello, Miles!");
+  lcd.backlight();
+}
+
+void loop() {
+  // set the cursor to column 0, line 1
+  // (note: line 1 is the second row, since counting begins with 0):
+  lcd.setCursor(0, 1);
+  // print the number of seconds since reset:
+  lcd.print(millis()/1000);
+  //Serial.print(millis()/1000);
+  //Serial.print("\n");
+  // turn the backlight off, briefly
+  //delay(500);
+  //lcd.noBacklight();
+  //delay(50);
+  //lcd.backlight();
+  //delay(500);
+}