mr happy / Mbed 2 deprecated flashing_leds

Reads the voltage from Pin18 (out) based on the output from Pin(20) i.e a self checking voltmeter.

Files at this revision

API Documentation at this revision

Revision 1:a4c99d145ce3, committed 2011-02-04

Comitter:
mrhappy
Date:
Fri Feb 04 23:08:04 2011 +0000
Parent:
0:7c659fdad918
Commit message:
V0.1

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Fri Feb 04 22:36:45 2011 +0000
+++ b/main.cpp	Fri Feb 04 23:08:04 2011 +0000
@@ -1,6 +1,8 @@
 #include "mbed.h"
 
 AnalogIn ain(p20);
+AnalogOut aout(p18);
+
 DigitalOut led1(LED1);
 DigitalOut led2(LED2);
 DigitalOut led3(LED3);
@@ -14,7 +16,7 @@
 void bindisplay(int i){
 
     // based on Kohei Matsumura code.
-    wait(0.2);
+    wait(0.5);
     led1 = i & 0x01;
     led2 = i>>1 & 0x01;
     led3 = i>>2 & 0x01;
@@ -24,9 +26,15 @@
 
 int main() {
     
-      while (1){
+    float vout = 0;
+    
+    while(1)
+    {
+        bindisplay( ain * 0xffff );
         
-        bindisplay( ain * 0x0f );
-    
+        vout += 0.1;
+        aout = vout;
+        
+        if (vout > 1) vout = 0;
     }
 }
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