const startProximityObserver = () => {
  const[atLesesalen, setLoc]  = useState(false);
  // will trigger when the user is within ~ 5 m of any beacon with tag "lobby"
  const zone1 = new RNEP.ProximityZone(1, "Lesesalen");

  zone1.onEnterAction = context => {
    setLoc(true);
    console.log(atLesesalen)
  };
  zone1.onExitAction = context => {
    setLoc(false);
    console.log("zone1 onExit", context);
  };
}
export startProximityObserver;