Diff: main.cpp

Revision:

4:1b63302b4008

Parent:

3:65d6deb7d07b

Child:

5:af96df45a447

--- a/main.cpp	Wed Nov 19 20:57:59 2014 +0000
+++ b/main.cpp	Tue Apr 28 06:25:30 2015 +0000
@@ -1,12 +1,29 @@
 #include "mbed.h"
 
+#define BAUD_RATE 9600 //default baud rate
 DigitalOut led(LED1); //P0_18 in NRF51822_MKIT
+DigitalIn reed_speed(p1, PullDown); //P0_01 in NRF51822_MKIT
+unsigned int counter=0;
 
 int main() {
-    while(1) {
-        led = 1; // LED is ON
-        wait(0.250); // 250 ms
-        led = 0; // LED is OFF
-        wait(0.750); // 750 ms
+    //Configure boud rate 
+    Serial s(USBTX, USBRX); //default for nrf51 is p0.09 p0.11
+    s.baud(BAUD_RATE);
+    counter = 0;
+    
+    while(1) {                          
+        if (reed_speed) {
+            counter = counter + 1;
+            led = 1; // LED is ON
+            printf("number of revs: %i\n",counter);
+            while(reed_speed){ //display dots to check if counting works
+            printf(".");
+            }        
+            
+        }
+        else {
+            led = 0; //LED is OFF
+        }
+        wait(0.100); // 100 ms                         
     }
-}
\ No newline at end of file
+}