69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
#include <Keypad.h>
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const byte ROWS = 2; // use 4X4 keypad for both instances
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const byte COLS = 2;
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char keys[ROWS][COLS] = {
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{'1','2'},
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{'3','4'}
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};
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byte rowPins[ROWS] = {5, 4}; //connect to the row pinouts of the keypad
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byte colPins[COLS] = {7, 6}; //connect to the column pinouts of the keypad
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Keypad kpd( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
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const byte ROWSR = 2;
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const byte COLSR = 2;
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char keysR[ROWSR][COLSR] = {
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{'a','b'},
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{'c','d'}
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};
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byte rowPinsR[ROWSR] = {3, 2}; //connect to the row pinouts of the keypad
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byte colPinsR[COLSR] = {7, 6}; //connect to the column pinouts of the keypad
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Keypad kpdR( makeKeymap(keysR), rowPinsR, colPinsR, ROWSR, COLSR );
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const byte ROWSUR = 4;
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const byte COLSUR = 1;
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char keysUR[ROWSUR][COLSUR] = {
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{'M'},
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{'A'},
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{'R'},
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{'K'}
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};
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// Digitran keypad, bit numbers of PCF8574 i/o port
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byte rowPinsUR[ROWSUR] = {5, 4, 3, 2}; //connect to the row pinouts of the keypad
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byte colPinsUR[COLSUR] = {8}; //connect to the column pinouts of the keypad
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Keypad kpdUR( makeKeymap(keysUR), rowPinsUR, colPinsUR, ROWSUR, COLSUR );
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void setup(){
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// Wire.begin( );
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kpdUR.begin( makeKeymap(keysUR) );
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kpdR.begin( makeKeymap(keysR) );
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kpd.begin( makeKeymap(keys) );
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Serial.begin(9600);
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Serial.println( "start" );
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}
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//byte alternate = false;
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char key, keyR, keyUR;
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void loop(){
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// alternate = !alternate;
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key = kpd.getKey( );
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keyUR = kpdUR.getKey( );
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keyR = kpdR.getKey( );
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if (key){
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Serial.println(key);
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}
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if( keyR ) {
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Serial.println( keyR );
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}
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if( keyUR ) {
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Serial.println( keyUR );
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}
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}
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