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.
keypad.lib
- Committer:
- gj_schoneveld
- Date:
- 2012-11-04
- Revision:
- 4:16191e501b63
- Parent:
- 3:fb173f712440
File content as of revision 4:16191e501b63:
http://mbed.org/users/gj_schoneveld/code/keypad/#873a9a452ef1