LEDS ON, LEDS OFF, Push Button Switch, Keypad Programs for the Pi 2B using WiringPi

LEDS ON, LEDS OFF, Push Button Switch, Keypad Programs for the Pi 2B using WiringPi

https://www.dropbox.com/s/3qf3n9b1yvl29br/leds_onEx.c?dl=0

https://www.dropbox.com/s/jdt9lrpbne1k9f4/leds_offEx.c?dl=0

https://www.dropbox.com/s/x3uosnxj2i28bdb/button.c?dl=0

https://www.dropbox.com/s/y38v7dium18siqt/keypad2.c?dl=0


http://pcbheaven.com/wikipages/How_Key_Matrices_Works/