Updated 4X4 keypad code that works on STM32F407 and Mbed-OS-5. InterruptIn on STM32F4 MCUs seem to float without PullDown/Up, without forced PullDown the original code doesn't work on STM32F407 and most likely other STM32 MCUs as well.

Revisions of keypad.cpp

Revision Date Message Actions
0:2df66331c109 2012-01-30 Initial published version File  Diff  Annotate