Differences

This shows you the differences between two versions of the page.

--- tutorials:arduino:lcd_display [2014/02/27 20:58]
aaron created
+++ tutorials:arduino:lcd_display [2014/02/28 10:19] (current)
sam
@@ Line 9: / Line 9: @@
 ===== Abstract =====
+How to do this,please refer to [[http://docs.cubieboard.org/tutorials/arduino/controlling_led |light led]] and [[http://docs.cubieboard.org/tutorials/arduino/connecting|how to connect cubieboard and arduino]]
 {{:tutorials:arduino:照片_4_.jpg|400}}
-===== Headline =====
+=====Schematics=====
+{{:tutorials:arduino:dd.jpg|200}}
+====Source Code====
+<code>
+int DI = 12;
+int RW = 11;
+int DB[] = {3, 4, 5, 6, 7, 8, 9, 10};
+int Enable = 2;
+void LcdCommandWrite(int value) {
+int i = 0;
+for (i=DB[0]; i <= DI; i++){
+   digitalWrite(i,value & 01);
+   value >>= 1;
+}
+digitalWrite(Enable,LOW);
+delayMicroseconds(1);
+digitalWrite(Enable,HIGH);
+delayMicroseconds(1);
+digitalWrite(Enable,LOW);
+delayMicroseconds(1);
+}
+void LcdDataWrite(int value) {
+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);
+digitalWrite(Enable,HIGH);
+delayMicroseconds(1);
+digitalWrite(Enable,LOW);
+delayMicroseconds(1);
+}
+void setup (void) {
+int i = 0;
+for (i=Enable; i <= DI; i++) {
+   pinMode(i,OUTPUT);
+}
+delay(100);
+LcdCommandWrite(0x38);
+delay(64);
+LcdCommandWrite(0x38);
+delay(50);
+LcdCommandWrite(0x38);
+delay(20);
+LcdCommandWrite(0x06);
+delay(20);
+LcdCommandWrite(0x0E);
+delay(20);
+LcdCommandWrite(0x01);
+delay(100);
+LcdCommandWrite(0x80);
+delay(20);
+}
-==== Headline ====
+void loop (void) {
+  LcdCommandWrite(0x01);
+  delay(10);
+  LcdCommandWrite(0x80+3);
+  delay(10);
+  LcdDataWrite('W');
+  LcdDataWrite('e');
+  LcdDataWrite('l');
+  LcdDataWrite('c');
+  LcdDataWrite('o');
+  LcdDataWrite('m');
+  LcdDataWrite('e');
+  LcdDataWrite(' ');
+  LcdDataWrite('t');
+  LcdDataWrite('o');
+  delay(10);
+  LcdCommandWrite(0xc0+1);
+  delay(10);
+  LcdDataWrite('g');
+  LcdDataWrite('e');
+  LcdDataWrite('e');
+  LcdDataWrite('k');
+  LcdDataWrite('-');
+  LcdDataWrite('w');
+  LcdDataWrite('o');
+  LcdDataWrite('r');
+  LcdDataWrite('k');
+  LcdDataWrite('s');
+  LcdDataWrite('h');
+  LcdDataWrite('o');
+  LcdDataWrite('p');
+  delay(5000);
+  LcdCommandWrite(0x01);
+  delay(10);
+  LcdDataWrite('I');
+  LcdDataWrite(' ');
+  LcdDataWrite('a');
+  LcdDataWrite('m');
+  LcdDataWrite(' ');
+  LcdDataWrite('h');
+  LcdDataWrite('o');
+  LcdDataWrite('n');
+  LcdDataWrite('g');
+  LcdDataWrite('y');
+  LcdDataWrite('i');
+  delay(3000);
+  LcdCommandWrite(0x02);
+  delay(10);
+  LcdCommandWrite(0x80+5);
+  delay(10);
+  LcdDataWrite('t');
+  LcdDataWrite('h');
+  LcdDataWrite('e');
+  LcdDataWrite(' ');
+  LcdDataWrite('a');
+  LcdDataWrite('d');
+  LcdDataWrite('m');
+  LcdDataWrite('i');
+  LcdDataWrite('n');
+  delay(5000);
+}
+</code>

CubieBoard Docs

User Tools

Site Tools

Differences

Page Tools