Committing individual examples instead of one .zip

build/shared/dist/examples/lcd/lcd_8bits/lcd_8bits.pde

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+/* LCD 8bits
+ * ---------
+ *
+ * This is the first example in how to use an LCD screen
+ * configured with data transfers over 8 bits. The example
+ * uses all the digital pins on the Arduino board, but can
+ * easily display data on the display
+ *
+ * There are the following pins to be considered:
+ * 
+ * - DI, RW, DB0..DB7, Enable (11 in total)
+ *
+ * the pinout for LCD displays is standard and there is plenty
+ * of documentation to be found on the internet.
+ *
+ * Picture at:
+ * http://arduino.berlios.de/index.php/Tutorial/LCD8Bits
+ *
+ * (cleft) 2005 DojoDave for K3
+ *
+ */
+ 
+int DI = 12;
+int RW = 11;
+int DB[] = {3, 4, 5, 6, 7, 8, 9, 10};
+int Enable = 2;
+
+void LcdCommandWrite(int value) {
+ // poll all the pins
+ int i = 0;
+ for (i=DB[0]; i <= DI; i++) {
+   digitalWrite(i,value & 01);
+   value >>= 1;
+ }
+ digitalWrite(Enable,LOW);
+ delayMicroseconds(1);
+ // send a pulse to enable
+ digitalWrite(Enable,HIGH);
+ delayMicroseconds(1);  // pause 1 ms according to datasheet
+ digitalWrite(Enable,LOW);
+ delayMicroseconds(1);  // pause 1 ms according to datasheet
+}
+
+void LcdDataWrite(int value) {
+ // poll all the pins
+ int i = 0;
+ digitalWrite(DI, HIGH);
+ digitalWrite(RW, LOW);
+ for (i=DB[0]; i <= DB[7]; i++) {
+   digitalWrite(i,value & 01);
+   value >>= 1;
+ }
+ digitalWrite(Enable,LOW);
+ delayMicroseconds(1);
+ // send a pulse to enable
+ digitalWrite(Enable,HIGH);
+ delayMicroseconds(1);
+ digitalWrite(Enable,LOW);
+ delayMicroseconds(1);  // pause 1 ms according to datasheet
+}
+
+void setup (void) {
+ int i = 0;
+ for (i=Enable; i <= DI; i++) {
+   pinMode(i,OUTPUT);
+ }
+ delay(100);
+ // initiatize lcd after a short pause
+ // needed by the LCDs controller
+ LcdCommandWrite(0x30);  // function set:
+                         // 8-bit interface, 1 display lines, 5x7 font
+ delay(64);                      
+ LcdCommandWrite(0x30);  // function set:
+                         // 8-bit interface, 1 display lines, 5x7 font
+ delay(50);                      
+ LcdCommandWrite(0x30);  // function set:
+                         // 8-bit interface, 1 display lines, 5x7 font
+ delay(20);                      
+ LcdCommandWrite(0x06);  // entry mode set:
+                         // increment automatically, no display shift
+ delay(20);                      
+ LcdCommandWrite(0x0E);  // display control:
+                         // turn display on, cursor on, no blinking
+ delay(20);                      
+ LcdCommandWrite(0x01);  // clear display, set cursor position to zero  
+ delay(100);                      
+ LcdCommandWrite(0x80);  // display control:
+                         // turn display on, cursor on, no blinking
+ delay(20);                      
+}
+
+void loop (void) {
+  LcdCommandWrite(0x02);  // set cursor position to zero  
+  delay(10);                     
+  // Write the welcome message 
+  LcdDataWrite('H');
+  LcdDataWrite('o');
+  LcdDataWrite('l');
+  LcdDataWrite('a');
+  LcdDataWrite(' ');
+  LcdDataWrite('C');
+  LcdDataWrite('a');
+  LcdDataWrite('r');
+  LcdDataWrite('a');
+  LcdDataWrite('c');
+  LcdDataWrite('o');
+  LcdDataWrite('l');
+  LcdDataWrite('a');
+  delay(500);
+}