Diff: main.cpp

Revision:

3:a72374052938

Parent:

2:d7639bb949d7

Child:

4:ba523da0d68a

--- a/main.cpp	Sun Sep 08 14:58:41 2013 +0000
+++ b/main.cpp	Mon Sep 16 04:44:20 2013 +0000
@@ -1,15 +1,11 @@
 #include "mbed.h"
 
-/* Configure a GPIO pin as output for controlling a LED. 'led' is an user assigned name and
- 'LED1' is an internal name given to a port pin P1_8 in this Arch platform. */
-DigitalOut led(LED1);
+DigitalOut led(LED1);    // Configure LED1 pin as output
+DigitalIn button(P1_14); // Configure P1_14 pin as input
 
 int main()
 {
     while(1) {
-        led.write(1);    // Here, DigitalOut -> write() function is used to set the ouput high.
-        wait_ms(500);    // Wait for 0.5 Seconds. The time is specified in milli-seconds using wait_ms() function.
-        led.write(0);    // Switch OFF the LED.
-        wait_us(500000); // Wait for 0.5 Seconds. The time is specified in micro-seconds using wait_us() function.
+        led.write(button.read());    /* read the state of input port pin P1_14 and write it to output port pin LED1*/
     }
 }