update homekit UI when event happens outside homekit about homebridge-mqtt HOT 1 CLOSED

Accessory.prototype.save_and_setValue

 * @event 'set' => function(newValue, callback(err), context) { }
 *        Emitted when someone calls setValue() on this Characteristic with a desired new value. If there
 *        are any listeners to this event, one of them MUST call the callback in order for this.value to
 *        actually be set. The `context` object is whatever was passed in by the initiator of this change
 *        (for instance, whomever called `setValue`).