SSD1306 OLED - sample code isn't working

yes, I found it myself Gordon ;) just wanted to post I found solution ;)
my code looks now that, and is working now ;)

function OLED(){
clearWatch();

I2C1.setup({scl:B6,sda:B7});
var g = require("SSD1306").connect(I2C1);
g.clear();
  g.flip();

pinMode(B15, 'input_pulldown');

//Button tests
var BTN22 = B15;
var screen = 0;
var battery; // = analogRead(A5)*2*3.3;
var analogSample;

function screens(){
  g.clear();
  g.setFontVector(15);
  g.drawString("one",25,20);
  g.flip();
}

function screens2(){
  analogSample = analogRead(A2);
 g.clear();
 g.setFontVector(15);
 g.drawString("OLED OFF?");
 g.setFontVector(10);
 g.drawString(analogSample,60,50);
 g.flip();
}

function screens3(){
  battery = analogRead(A5);
 g.clear();
 g.setFontVector(20);
 g.drawString("" + battery.toFixed(2),20,20);
 g.flip();
}


setWatch(function(e) {
    screen++;
    console.log(screen);
    clearInterval();
    if(screen === 0) screens();
  if(screen === 1) setInterval(screens2,200);
  if(screen === 2) setInterval(screens3,500);
  if(screen >= 2) screen = 0;

  
},BTN22, {repeat: true, edge: 'rising', debounce:150});

}
           
OLED();