#include "TinyWireM.h" //Small I2C library
#include "Tiny4kOLED.h" //Small OLED library

#define SCL 4
#define SDA 6  
#define buttonPin1 8

void prepareDisplay() { //needed function to start OLED
  oled.clear();
  oled.begin();
  oled.setFont(FONT6X8); //optional: to set font size
}

void setup() {
  oled.begin(128, 64, sizeof(tiny4koled_init_128x64br), tiny4koled_init_128x64br); //size of your OLED
  oled.clear(); //clear memmory and display
  oled.on();
  prepareDisplay();
  pinMode(buttonPin1, INPUT); // Enable internal pull-up resistor
  oled.setCursor(0, 0); //specify where to start writing
  oled.print("Button pressed: ");
}

void loop(){
  delay(1000);
  if (digitalRead(buttonPin1) == HIGH){ //read button
    oled.setCursor(0, 10); //print downside the previous message
    oled.print("yes"); //pressed
    delay(1000);
  }
  else{
    oled.setCursor(0, 10); //not pressed
    oled.print("no ");
  }
}