#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
/*
* Connections
* SSD1306 OLED | Arduino Uno
* ---------------------------
*     VCC      |    +5V       (Vcc/power/+ve)
*     GND      |    GND       (Ground/-ve/0v)
*     SCL      |    A5        (Serial Clock Line)
*     SDA      |    A4        (Serial Data Line)
*/
const int SCREEN_WIDTH = 128; // OLED display width, in pixels
const int SCREEN_HEIGHT = 64; // OLED display height, in pixels

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
#define SW1 3
#define SW2 2
int Count = 0;
String text;

void setup() {
  pinMode(SW1, INPUT_PULLUP);
  pinMode(SW2, INPUT_PULLUP);
  Serial.begin(9600);

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    while(true);
  }
}

void loop() {

  display.clearDisplay();
  display.setTextColor(WHITE);
  
  display.setTextSize(2);
  display.setCursor(0, 25);
  display.println("Count = ");
  if (digitalRead(SW1)== 0)
  {
  Count++;
  display.setCursor(50, 0);
  display.println("up");
  }
  if (digitalRead(SW2)== 0)
  {
  Count--;
  display.setCursor(45, 50);
  display.println("down");
  }
  text = String(Count);
  display.setTextSize(2);
  display.setCursor(95, 25);
  display.println(text);

  display.display();
  delay(100);
}