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@3:fb173f712440, 2012-11-04 (annotated)
- Committer:
- gj_schoneveld
- Date:
- Sun Nov 04 09:50:00 2012 +0000
- Revision:
- 3:fb173f712440
- Parent:
- 2:eaa3d23e9b29
- Child:
- 4:16191e501b63
Multiple keys added
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
gj_schoneveld | 3:fb173f712440 | 1 | http://mbed.org/users/gj_schoneveld/code/keypad/#fb6929fac0db |