Differences

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

--- tutorials:arduino:led_array [2014/02/27 21:07]
aaron
+++ tutorials:arduino:led_array [2014/02/28 10:00] (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:20140227_191102.gif|400}}
 {{:tutorials:arduino:照片_1_.jpg|400}}
 =====Schematics=====
-{{:tutorials:arduino:led_.png|}}
+{{:tutorials:arduino:led_.png|400}}
+====Source Code====
+<code>
+#define display_array_size 8
+// ascii 8x8 dot font
+#define data_null 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // null char
+#define data_ascii_A 0x02,0x0C,0x18,0x68,0x68,0x18,0x0C,0x02 /*"A",0*/
+/**
+ **"A"
+ #define A  { //
+    {0, 0, 0, 0, 0, 0, 1, 0}, //0x02
+    {0, 0, 0, 0, 1, 1, 0, 0}, //0x0C
+    {0, 0, 0, 1, 1, 0, 0, 0}, //0x18
+    {0, 1, 1, 0, 1, 0, 0, 0}, //0x68
+    {0, 1, 1, 0, 1, 0, 0, 0}, //0x68
+    {0, 0, 0, 1, 1, 0, 0, 0}, //0x18
+    {0, 0, 0, 0, 1, 1, 0, 0}, //0x0C
+    {0, 0, 0, 0, 0, 0, 1, 0}  //0x02
+}
+**/
+#define data_ascii_B 0x00,0x7E,0x52,0x52,0x52,0x52,0x2C,0x00 /*"B",1*/
+#define data_ascii_C 0x00,0x3C,0x66,0x42,0x42,0x42,0x2C,0x00 /*"C",2*/
+#define data_ascii_D 0x00,0x7E,0x42,0x42,0x42,0x66,0x3C,0x00 /*"D",3*/
+#define data_ascii_E 0x00,0x7E,0x52,0x52,0x52,0x52,0x52,0x42 /*"E",4*/
+#define data_ascii_F 0x00,0x7E,0x50,0x50,0x50,0x50,0x50,0x40 /*"F",5*/
+#define data_ascii_G 0x00,0x3C,0x66,0x42,0x42,0x52,0x16,0x1E /*"G",6*/
+#define data_ascii_H 0x00,0x7E,0x10,0x10,0x10,0x10,0x7E,0x00 /*"H",7*/
+#define data_ascii_I 0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00 /*"I",8*/
+// display array
+byte data_ascii[][display_array_size] = {
+  data_null,
+  data_ascii_A, data_ascii_B,
+  data_ascii_C,
+  data_ascii_D,
+  data_ascii_E,
+  data_ascii_F,
+  data_ascii_G,
+  data_ascii_H,
+  data_ascii_I,
+};
+//the pin to control ROW
+const int row1 = 2; // the number of the row pin 24
+const int row2 = 3; // the number of the row pin 23
+const int row3 = 4; // the number of the row pin 22
+const int row4 = 5; // the number of the row pin 21
+const int row5 = 17; // the number of the row pin 4
+const int row6 = 16; // the number of the row pin 3
+const int row7 = 15; // the number of the row pin 2
+const int row8 = 14; // the number of the row pin 1
+//the pin to control COl
+const int col1 = 6; // the number of the col pin 20
+const int col2 = 7; // the number of the col pin 19
+const int col3 = 8; // the number of the col pin 18
+const int col4 = 9; // the number of the col pin 17
+const int col5 = 10; // the number of the col pin 16
+const int col6 = 11; // the number of the col pin 15
+const int col7 = 12; // the number of the col pin 14
+const int col8 = 13; // the number of the col pin 13
+void displayNum(byte rowNum,int colNum)
+{
+  int j;
+  byte temp = rowNum;
+  for(j=2;j<6;j++)
+  {
+    digitalWrite(j, LOW);
+  }
+  digitalWrite(row5, LOW);
+  digitalWrite(row6, LOW);
+  digitalWrite(row7, LOW);
+  digitalWrite(row8, LOW);
+  for(j=6;j<14;j++)
+  {
+    digitalWrite(j, HIGH); }
+    switch(colNum)
+    {
+      case 1: digitalWrite(col1, LOW); break;
+      case 2: digitalWrite(col2, LOW); break;
+      case 3: digitalWrite(col3, LOW); break;
+      case 4: digitalWrite(col4, LOW); break;
+      case 5: digitalWrite(col5, LOW); break;
+      case 6: digitalWrite(col6, LOW); break;
+      case 7: digitalWrite(col7, LOW); break;
+      case 8: digitalWrite(col8, LOW); break;
+      default: break;
+    }
+    for(j = 1 ;j < 9; j++)
+    {
+      temp = (0x80)&(temp) ;
+      if(temp==0)
+      {
+        temp = rowNum<<j;
+        continue;
+      }
+      switch(j)
+      {
+        case 1: digitalWrite(row1, HIGH); break;
+        case 2: digitalWrite(row2, HIGH); break;
+        case 3: digitalWrite(row3, HIGH); break;
+        case 4: digitalWrite(row4, HIGH); break;
+        case 5: digitalWrite(row5, HIGH); break;
+        case 6: digitalWrite(row6, HIGH); break;
+        case 7: digitalWrite(row7, HIGH); break;
+        case 8: digitalWrite(row8, HIGH); break;
+        default: break;
+     }
+    temp = rowNum<<j;
+  }
+}
+void setup(){
+  int i = 0 ;
+  for(i=2;i<18;i++)
+  {
+    pinMode(i, OUTPUT);
+  }
+  for(i=2;i<18;i++) {
+    digitalWrite(i, LOW);
+  }
+}
+void loop(){
+  int t1;
+  int l;
+  int arrage;
+  for(arrage=0;arrage<10;arrage++)
+  {
+    for(l=0;l<512;l++)
+    {
+      for(t1=0;t1<8;t1++)
+      {
+        displayNum(data_ascii[arrage][t1],(t1+1));
+      }
+    }
+  }
+}
-==== Headline ====
+</code>
 ===== Headline =====

CubieBoard Docs

User Tools

Site Tools

Differences

Page Tools