#include <TinyWireM.h>
#include <Tiny4kOLED.h>
     
#define buttonPin PB3 

void prepareDisplay() {
  oled.clear();
  oled.begin();
  oled.setFont(FONT6X8);
}

void setup() {
  oled.begin(128, 64, sizeof(tiny4koled_init_128x64br), tiny4koled_init_128x64br);
  oled.clear();
  oled.on();
  prepareDisplay();
  oled.setFont(FONT8X16);
  pinMode(buttonPin, INPUT_PULLUP); 
}

void loop() {

  int buttonState = digitalRead(buttonPin);

  if (buttonState == LOW) {
    oled.setCursor(5, 1);
    oled.print(" LOW");
  } else {
    oled.setCursor(5, 1);
    oled.print("HIGH"); 
  }

}