Gert Jan Schoneveld
Tests forked Keypad library.
Dependencies: FPointer keypad mbed
Schematic:
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.
History
Small bug
2012-11-04, by gj_schoneveld [Sun, 04 Nov 2012 09:56:51 +0000] rev 4
Small bug
Multiple keys added
2012-11-04, by gj_schoneveld [Sun, 04 Nov 2012 09:50:00 +0000] rev 3
Multiple keys added
Added polling support.
2012-11-03, by gj_schoneveld [Sat, 03 Nov 2012 23:45:20 +0000] rev 2
Added polling support.
- clean up ; - added led code from Rene Greiner's IRQKeypad1.
2012-11-03, by gj_schoneveld [Sat, 03 Nov 2012 21:48:39 +0000] rev 1
- clean up ; - added led code from Rene Greiner's IRQKeypad1.
Tests forked Keypad library
2012-11-02, by gj_schoneveld [Fri, 02 Nov 2012 22:52:44 +0000] rev 0
Tests forked Keypad library