Diff: main.cpp

Revision:

1:83a13087626e

Parent:

0:626906048498

Child:

2:a18f03867915

--- a/main.cpp	Fri Feb 19 13:15:55 2016 +0000
+++ b/main.cpp	Fri Feb 19 14:38:05 2016 +0000
@@ -1,12 +1,39 @@
 #include "mbed.h"
-
-DigitalOut myled(LED1);
-
-int main() {
-    while(1) {
-        myled = 1;
-        wait(0.2);
-        myled = 0;
-        wait(0.2);
-    }
-}
+Serial serialpc( USBTX,USBRX);
+InterruptIn Echo(D8);
+DigitalOut Trigg(D9);
+Timer timer;
+float dist=0;
+DigitalOut led(LED2);
+        void start(){
+                timer.reset();
+                timer.start();
+                }
+                
+      void stop(){
+          timer.stop();
+          dist=timer.read_us();
+          }
+              
+    int main(){
+        Echo.rise(&start);
+        Echo.fall(&stop);
+        Trigg=0;        
+            
+        while(1){
+            dist=0;
+            Trigg=1;
+            wait_us(10);
+            Trigg=0;
+            while(dist==0){
+                wait_us(1);
+                     
+        }
+             
+             dist=dist/58.0;
+             
+             
+             serialpc.printf("distancia %f cm\n",dist);
+             wait(.2);
+         }
+    }
\ No newline at end of file