#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

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

const int pin = 23;
int counter = 0;
bool pressed = false;

void setup() {
  Serial.begin(115200);

 
  pinMode(pin, INPUT_PULLUP);

  // I2C: SDA=21, SCL=22
  Wire.begin(21, 22);

  // Init OLED (address 0x3C)
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println("OLED NOT FOUND");
    while (1);
  }

  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(0, 0);
  display.print("Count: 0");
  display.display();
}

void loop() {
  int state = digitalRead(pin);
 
  if (state == LOW && !pressed) {
    pressed = true;
    counter++;
    Serial.println(counter);

    
    display.clearDisplay();
    display.setTextSize(2);
    display.setTextColor(SSD1306_WHITE);
    display.setCursor(0, 0);
    display.print("Count:");
    display.setCursor(0, 30);
    display.print(counter);
    display.display();
  }

  if (state == HIGH) {
    pressed = false;
  }

  delay(10);
}