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:
- 2012-11-02
- Revision:
- 0:5410e5950602
- Child:
- 2:eaa3d23e9b29
File content as of revision 0:5410e5950602:
http://mbed.org/users/gj_schoneveld/code/keypad/#9a9ec143840b