Revision 0:f2b0b64f9397, committed 2013-11-14

Comitter:

jf1452

Date:

Thu Nov 14 13:00:12 2013 +0000

Commit message:

Renishaw RenBED Read Button Workshop 2

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Nov 14 13:00:12 2013 +0000
@@ -0,0 +1,22 @@
+//***************************************************************************//
+//This tutorial shows how to read a switch and toggle a LED.
+//Connect the Anode of the LED to DIP36 (P0_21), the Anode of the resistor
+//connects through a 390 Ohm resistor to DIP1 (0V).
+//Connect the switch between DIP5 (P0_9) and DIP1 (0V). 
+//
+//Jon Fuge
+//12/11/2013
+//***************************************************************************//
+#include "mbed.h"            //Include the mbed header file which contains the prototypes of the libraries used here (DigitalOut) as well as various syntax definitions.
+
+DigitalIn mybutton(P0_9);    //Creates an instance of DigitalIn called mybuttonwhich reads bit 9 of port 0 (DIP5).
+DigitalOut myled(P0_21);     //Creates an instance of DigitalOut called myled which controls bit 21 of port 0 (DIP36).
+int main() {
+    mybutton.mode(PullUp); // Configure pin to have a pull-up input
+    while(1) {               //Create infinite loop to keep program running.
+        if (mybutton == 0) { //mybutton has been pressed 0 indicates input is at 0V, a 1 would mean the input is 3.3V.
+            myled = !myled;  //myled will now become !myled (! means NOT).
+        }
+        wait(0.2);           //Wait for 0.2 seconds to "debounce" the switch.
+    }                        //Loop to the start.
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.lib	Thu Nov 14 13:00:12 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/#f37f3b9c9f0b