just a small code example to display numbers on a 7 segment display should be easy to rewrite for your own needs.

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Comitter:
ShingyoujiPai
Date:
Sat Dec 29 12:00:01 2012 +0000
Commit message:
7 Segment Display Basic

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Dec 29 12:00:01 2012 +0000
@@ -0,0 +1,38 @@
+#include "mbed.h"
+
+    //pins are sorted from upper left corner of the display to the lower right corner
+    //the display has a common cathode
+    //the display actally has 8 led's, the last one is a dot 
+DigitalOut led[8]={p18, p19, p17, p20, p16, p14, p15, p13};
+
+
+    //each led that has to light up gets a 1, every other led gets a 0
+    //its in order of the DigitalOut Pins above
+int number[11][8]={
+                    {1,1,1,0,1,1,1,0},          //zero
+                    {0,0,1,0,0,1,0,0},          //one
+                    {1,0,1,1,1,0,1,0},          //two
+                    {1,0,1,1,0,1,1,0},          //three
+                    {0,1,1,1,0,1,0,0},          //four
+                    {1,1,0,1,0,1,1,0},          //five
+                    {1,1,0,1,1,1,1,0},          //six
+                    {1,0,1,0,0,1,0,0},          //seven
+                    {1,1,1,1,1,1,1,0},          //eight
+                    {1,1,1,1,0,1,1,0},          //nine
+                    {0,0,0,0,0,0,0,1}          //dot
+                  };
+
+
+int main() {
+    while (1) {
+            //all led's off
+        for(int i = 0; i<8;i++){led[i] = 0;}
+        
+            //display shows the number in this case 6
+        for (int i=0; i<8; i++){led[i] = number[6][i];}         //the digit after "number" is displayed
+
+            //before it gets tired
+        wait(0.5);
+    
+    }
+}
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Dec 29 12:00:01 2012 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912
\ No newline at end of file