#include <Keypad.h>
#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <RotaryEncoder.h>

#define RotA 7
#define RotB 8
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels


Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);


const uint8_t ROWS = 3; //four rows
const uint8_t COLS = 4; //four columns
char keys[ROWS][COLS] = {
  {'1','2','3','4'},
  {'5','6','7','8'},
  {'9','0','A','B'}
};

uint8_t rowPins[ROWS] = {9, 10, 6}; //connect to the row pinouts of the keypad
uint8_t colPins[COLS] = {0, 1, 2, 3}; //connect to the column pinouts of the keypad
Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS );

void setup(){
  Serial1.begin(115200);
  Serial1.println("Hello, Raspberry Pi Pico W!");
  input_password.reserve(32);
   if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial1.println(F("SSD1306 allocation failed"));
    for(;;);
  }

}

void loop(){
  char button = keypad.getKey();
  if (button){
    displayMessage(button);
  }
}



void displayMessage(String message) {
  display.clearDisplay();
  display.setCursor(0, 0);
  display.println(message);
  display.display();
}