Diff: Part1/Polling.cpp

Revision:

0:217de6e7e29a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Part1/Polling.cpp	Thu Jan 29 22:54:57 2015 +0000
@@ -0,0 +1,26 @@
+#include "mbed.h"
+
+DigitalIn     P5(p5); //connected to 1kohms resistor and PIN5 of the keypad
+DigitalIn     P6(p6); //connected to 1kohms resistor and PIN6 of the keypad
+DigitalOut     P7(p7);//connected to PIN8 of the keypad
+DigitalOut     P8(p8);//connected to PIN4 of the keypad
+DigitalOut    Led1(LED1);
+DigitalOut    Led2(LED2);
+
+int main()
+{
+    //set on both PIN8 and PIN4 of the keypad to detect which button is pressed.
+    P7 = 1;
+    P8 = 1;
+    while(1) {
+        if (P5 == 1) //LED1 is on when Button "2" is pressed
+            Led1 = 1;
+        else if(P6 == 1)//LED2 is on when Button "#" is pressed
+            Led2 = 1;
+        else { //set LEDs off if no button is pressed
+            Led1 = 0;
+            Led2 = 0;
+        }
+    }
+}
+