..it seems so..Is it asking too much
Hi,
You ask questions about libraries and keyboards. Still you don't give enough information, thus we are not able to give useful answers.
To me it's even unclear whether you want to design a (USB) keyboard or you want to use a (USB) keyboard for your "filling project"
...and whether you want to use the libraries for the microcontroller inside the keyboard or inside the filling project.
I agree with FenTrac that PS/2 is simpler (interface, protocol) than USB.
But a PS/2 keyboard does neither work with a 4x4 matrix keyboard library nor with a USB keyboard library.
Wasn't this the initial question in your headline?
I don't want to annoy you with repeated asking for informations. I just try to help, but this way I (we?) simply am not able to.
Don't blame it on us, if you don't get good assistance.
..it seems so..
I honestly wish you good luck for your project.
Klaus
Hello
Respected Sir,
Firstly thanks for wishes,
This micro-controller subject and programming with is very new to me, may be this is reason i am able to give accurate technical words and also i got only partial project needs. Complete project need and its functionality is not yet disclosed by my senior.
I need to function a 4x4 keypad with LCD as dispaly, inside the microcontroller only. And this keypad must be a alpha-numeric one. That is keypad handler subroutie in level 0 must be number keypad and in level 1 must be alphabetic one.
example : As in Dynamic keypad sample program of keypad library of Arduino
@file DynamicKeypad.pde
|| @version 1.2
|| @Author Mark Stanley
|| @contact mstanley@technologist.com
for 4x3 membrane keypad
char alphaKeys[ROWS][COLS] = {
{ 'a', 'd', 'g' },
{ 'j', 'm', 'p' },
{ 's', 'v', 'y' },
{ ' ', '.', '#' }
};
char numberKeys[ROWS][COLS] = {
{ '1', '2', '3' },
{ '4', '5', 6' },
{ '7', '8', ' 9' },
{ ' ', '0', '#' }
};
where '#' key is used to toggle between two keymaps that is once # is pressed, the keymap goes to alpha keymap and another # press results in keymap entering into the number keymap. I want to use the keypad in almost similar fashion. But in available keypad library i don't have multiple key press function as in " usb keyboard " built in library of Arduino.
Do combining both keypad library and keyboard library gives errror or is it is feasible to work. I have even written a sample code only to check the feasibility of two libraries but i am getting this as error.
" exit status 1
Error compiling for board Arduino/Genuino Mega or Mega 2560. "
Help me in selecting the library or give me suggestion on what can be done to do to use multiple pressing a key.
Thanking you
with regards
Madhurakshi B S
#include <keyboard.h>
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