I am a very confused on what i am doing wrong with this project . it is a prop used in my business and I am having no luck puting it together, this is the link to what i am doing and i get stuck every time on the this
Arduino: 1.8.13 (Windows Store 1.8.42.0) (Windows 10), Board: "Arduino Uno"
bomb_project4:6:10: fatal error: Keypad.h: No such file or directory
#include <Keypad.h>
^~~~~~~~~~
compilation terminated.
exit status 1
Keypad.h: No such file or directory
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
and the link to the progect is this
i bought all the stuff he listed and now i am stuck with programing issues