# The device is new, the problems are old **URL:** \ **Category:** Ideas & Suggestion\ **Created:** [May 22, 2024, 7:29pm UTC](https://forum.ewelink.cc/t/the-device-is-new-the-problems-are-old/34143 "2024-05-22T19:29:46Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![morgan](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/morgan/32/3184_2.png) [@morgan](https://forum.ewelink.cc/u/morgan)\ **Post date:** [May 23, 2024, 6:33am UTC](https://forum.ewelink.cc/t/the-device-is-new-the-problems-are-old/34143/5 "2024-05-23T06:33:35Z")
> [@jonniugr](#): > > for local scenes for zb devices I have zb bridge pro. The position of the presence sensor has nothing to do with it. Once again I will try to explain what the problem is. The scenario is this - IF “no movement is detected”, THEN “delay 3 minutes”, “turn off the lights”. It is necessary to make sure that if a person is detected during these 3 minutes, the timer is reset and the light does not turn off until the person’s absence is detected again. THE “TIMER RESET” FUNCTION IS NEEDED when presence is detected again If it has to be LAN only, you will have a problem with it. Currently, this cannot be done without the Internet. Theoretically, it could be possible to do this locally, but it is a complete step beyond the ewelink ecosystem of scenes. The Sonoff device itself probably won’t be able to handle it. You need to have some central point, such as a server, that will run the logic flow… I doubt whether devs will implement such functionality. > [@Scenes does not enabled or disabled from a manual scene or from auto scene](https://forum.ewelink.cc/t/scenes-does-not-enabled-or-disabled-from-a-manual-scene-or-from-auto-scene/16295/35): > > So you want to have a stopwatch that will be reset every time the sensor is activated… You can achieve this using ewelink + [https://sequematic.com](https://sequematic.com) On the ewelink side you will need two scenes. On the SM side you will need three sequences and pairing your ewelink account and one variable. On the ewelink side, you need two scenes, one to start the countdown and the other to change the value of the variable so that there are no mistakes, let’s call it STOP. On the SM side, we need thre… --- _[View the full topic](https://forum.ewelink.cc/t/the-device-is-new-the-problems-are-old/34143)._