#include <Joystick.h>

Joystick_ Joystick;

const byte BR[3] = {1,2,3}; // Button array rows
const byte BC[3] = {4,5,6}; // Button array columns
byte keys[3][3];

const byte REA[6] = {7,8,9,10,11,12}; // Rotary encoders pin A
const byte REB[6] = {13,14,15,16,17,18}; // Rotary encoders pin B

void setup() {
	for(int i=0; i<6; i++) {
		pinMode(REl[i], INPUT_PULLUP);
		pinMode(REr[i], INPUT_PULLUP);
	}
	for(int i=0; i<6; i++) {
		pinMode(BR[i], INPUT);
		pinMode(BC[i], INPUT_PULLUP);
	}
	
	Joystick.begin()
}

void readMatrix() {
	for (int i=0; i<3; i++) {
		pinMode(BC[i], OUTPUT);
		digitalWrite(BC[i], LOW);
		
		for (int j=0; j<3; j++) {
			pinMode(BR[j], INPUT_PULLUP);
			keys[i][j] = digitalRead(BR[j]);
			pinMode(BR[j], INPUT);
		}
		
		pinMode(BC[i], INPUT);
	}
}

void loop() {
	readMatrix();
}