Keypad
Dependencies: Hotboards_keypad mbed
main.cpp
- Committer:
- shivanandgowdakr
- Date:
- 2018-08-21
- Revision:
- 2:61dd34b05a49
- Parent:
- 0:21b36798fd00
File content as of revision 2:61dd34b05a49:
/* @file HelloKeypad.cpp || @version 1.1 || @modified by Diego (http://hotboards.org) || @author Alexander Brevig || @contact alexanderbrevig@gmail.com || || @description || | Demonstrates the simplest use of the matrix Keypad library. || | Just press any key an it will be displayed on the serial port || # */ #include "mbed.h" #include "Hotboards_keypad.h" // Defines the keys array with it's respective number of rows & cols, // and with the value of each key char keys[ 7 ][ 7 ] = { { '1' , '2' , '3' , '4', '5', '6' ,'a'}, { '7' , '8' , '9' , '0', 'Q', 'W' ,'b'}, { 'E' , 'R' , 'T' , 'Y', 'U', 'I' ,'c'}, { 'O' , 'P' , 'A' , 'S', 'D', 'F' ,'d'}, { 'G' , 'H' , 'J' , 'K', 'L', 'Z' ,'e'}, { 'X' , 'C' , 'V' , 'B', 'N', 'M' ,'f'}, { 0x0D , 0x20 , 0x08 , 'g','h','i','j'}, //0x0D -> Enter Key , 0x20 -> Space, 0x08-> Backspace, a , b, c may be used as functions keys. }; // Defines the pins connected to the rows DigitalInOut rowPins[ 7 ] = { D0,D1,D2,D3,D4,D5,D6}; // Defines the pins connected to the cols DigitalInOut colPins[ 7 ] = { D7,D8,D9,D10,D11,D12,D13}; // Creates a new keyboard with the values entered before Keypad kpd( makeKeymap( keys ) , rowPins , colPins , 7 , 7 ); // Configures the serial port Serial pc( USBTX , USBRX ); int main() { pc.printf( "Press any key: " ); while(1) { // Poll the keypad to look for any activation char key = kpd.waitForKey(); // If any key was pressed if( key ) { // Display the key pressed on serial port pc.printf( "Pressed key is : %c" , key ); pc.printf( "\n\r" ); } } }