LED CUBE TEAM / Mbed 2 deprecated MAtrix

Blue LED matrix (8x16) program. Gets text string through bluetooth and displays it on led matrix. Also has a clock function- get system time from a phone through bluetooth and enters clock mode. In clock mode it acts as a clock showing hours and minutes and blinking led every second. Clock mode can be broken if a text string is received through bluetooth.

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Revision 21:db8dadfd7d2a, committed 2014-11-24

Comitter:
DaniusKalv
Date:
Mon Nov 24 17:52:09 2014 +0000
Parent:
20:8055a5b5dba0
Child:
22:8a5ea75ad53b
Commit message:
Updated matrix driver to use bits, also text generator now generates text in hex

Changed in this revision

matrix.cpp Show annotated file Show diff for this revision Revisions of this file
text.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/matrix.cpp	Mon Nov 24 15:02:37 2014 +0000
+++ b/matrix.cpp	Mon Nov 24 17:52:09 2014 +0000
@@ -7,13 +7,15 @@
 };
 
 void matrix::show(){
-    char temp[8];
+    uint8_t temp;
     fp = fopen("/local/out.txt", "r");
     fscanf(fp, "%i", &length);
+    pc.printf("\r\nLength = %i", length);
     for (int i = 0; i < 16; i++){
-        fscanf(fp, "%s", temp);
+        fscanf(fp, "%x", &temp);
+        //pc.printf("\r\n%02x", temp);
         for (int j = 0; j < 8; j++){
-            display[7 - j][i] = temp[j] - 48;    
+            display[7 - j][i] = ((temp & (1 << (7 - j))) >> j);    
         }
     }
     for (int i = 15; i < length; i++){
@@ -25,9 +27,10 @@
                 display[h][g] = display[h][g + 1];
             }
         }
-        fscanf(fp, "%s", temp);
+        fscanf(fp, "%x", &temp);
+        //pc.printf("\r\n%02x", temp);
         for (int j = 0; j < 8; j++){
-            display[j][15] = temp[7 - j] - 48;
+            display[j][15] = ((temp & (1 << j)) >> j);
         }
     }    
     fclose(fp);

--- a/text.cpp	Mon Nov 24 15:02:37 2014 +0000
+++ b/text.cpp	Mon Nov 24 17:52:09 2014 +0000
@@ -14,7 +14,7 @@
     calcLength(input);
     fprintf(fp, "%i\r\n", length);
     for (int i = 0; i < 16; i++){
-        fprintf(fp, "00000000\r\n");
+        fprintf(fp, "%02x\r\n", 0x00);
     }
     for (int i = 0; i < stringLength; i++){
         pc.printf("\r\nTaking letter ");
@@ -24,16 +24,20 @@
         pc.putc(input.at(i));
         tempCheck();
         for (int j = 7; j >= (8 - letSize); j--){
+            uint8_t hex = 0;
             for (int g = 7; g >= 0; g--){ 
-                fprintf(fp, "%i", ((temp[g] & (1 << j)) >> j));
+                //fprintf(fp, "%i", ((temp[g] & (1 << j)) >> j));
+                hex |= (((temp[g] & (1 << j)) >> j) << g);
             }
-            fprintf(fp,"\r\n");
+            fprintf(fp,"%02x\r\n", hex);
         } 
-        fprintf(fp, "00000000\r\n");    
+        fprintf(fp, "%02x\r\n", 0x00);    
     } 
     for (int i = 0; i < 15; i++){
-        fprintf(fp, "00000000\r\n");
+        fprintf(fp, "%02x\r\n", 0x00);
     }
+    pc.printf("\r\n%02x", 0x3e);
+    fprintf(fp, "%02x\r\n", 0x3e);
     fclose(fp);   
 }