imran00
Newbie level 4
I'm supposed to design and implement a simple circuit that will scan a 4-by-4 keypad and display the key pressed on computer screen. The catch of the whole project was that this was to be done using a standard parallel PC parallel printer port (DB-25), which was connected to a 4-by-4 keypad.
My problem is that I do not know how to do the code in c++ for this!
I am confused because I do not know how to make the code in c++ for the parallel printer port to read what key was pressed on the keypad, and after reading it...to display it on the computer screen.
SO LOST! HELP!
My problem is that I do not know how to do the code in c++ for this!
I am confused because I do not know how to make the code in c++ for the parallel printer port to read what key was pressed on the keypad, and after reading it...to display it on the computer screen.
SO LOST! HELP!