Gert Jan Schoneveld / Mbed 2 deprecated SaveKeypad

Tests forked Keypad library.

Dependencies:   FPointer keypad mbed

Schematic:

http://schind.nl/keypad.png

No extra hardware is needed besides the wires and switches. The columns are outputs configured with open drain. The rows are inputs configured with pull up resistors. A key press pulls down its row. With scanning the column is determined thereafter.

See keypad for the forked library used in this project.

Files at this revision

API Documentation at this revision

Revision 4:16191e501b63, committed 2012-11-04

Comitter:
gj_schoneveld
Date:
Sun Nov 04 09:56:51 2012 +0000
Parent:
3:fb173f712440
Commit message:
Small bug

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 
diff -r fb173f712440 -r 16191e501b63 keypad.lib
--- a/keypad.lib	Sun Nov 04 09:50:00 2012 +0000
+++ b/keypad.lib	Sun Nov 04 09:56:51 2012 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/gj_schoneveld/code/keypad/#fb6929fac0db
+http://mbed.org/users/gj_schoneveld/code/keypad/#873a9a452ef1

diff -r fb173f712440 -r 16191e501b63 main.cpp
--- a/main.cpp	Sun Nov 04 09:50:00 2012 +0000
+++ b/main.cpp	Sun Nov 04 09:56:51 2012 +0000
@@ -65,7 +65,7 @@
 // poll multiple mode
     keypad.Start();
     while (1) {
-        key = keypad.DebouncedScanMultiple();
+        int key = keypad.DebouncedScanMultiple();
         if (key > 0)
             cbAfterMultipleInput(key);
         wait(0.1);