hima bindu pallanti / Mbed 2 deprecated mbed_key

4*4 keypad interfacing with arm lpc1768 for entering 0-9 digits.

Dependencies:   keypad mbed

Files at this revision

API Documentation at this revision

Revision 0:5e96fed89c06, committed 2015-10-10

Comitter:
himabindupallanti
Date:
Sat Oct 10 10:35:00 2015 +0000
Commit message:
Keypad interfacing for password

Changed in this revision

keypad.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/keypad.lib	Sat Oct 10 10:35:00 2015 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/yoonghm/code/keypad/#da060f8c03e8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Oct 10 10:35:00 2015 +0000
@@ -0,0 +1,41 @@
+#include "mbed.h"
+ 
+#include "Keypad.h"
+ 
+Serial        PC(USBTX, USBRX);
+ 
+// Define your own keypad values
+char Keytable[] = { '1', '2', '3',   // r0
+                    '4', '5', '6',   // r1
+                    '7', '8', '9',
+                    '0'   // r2
+                  // c0   c1   c2
+                  };
+ 
+int32_t       Index = -1;
+int           State;
+ 
+uint32_t cbAfterInput(uint32_t index)
+{
+    Index = index;
+    return 0;
+}
+ 
+int main()
+{
+    PC.printf("I am Demo Keypad\r\n");
+    
+    //             r0   r1   r2   r3   c0   c1   c2   c3
+    Keypad keypad(p21, p22,  p23,  p24, p25, p26,  p27,  p28);
+    keypad.attach(&cbAfterInput);
+    keypad.start();  // energize the columns c0-c3 of the keypad
+ 
+    while (1) {
+        __wfi();
+        if (Index > -1) {
+            PC.printf("Interrupted");
+            PC.printf("Index:%d => Key:%c\r\n", Index, Keytable[Index]);
+            Index = -1;
+        }
+    }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Oct 10 10:35:00 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/34e6b704fe68
\ No newline at end of file