# How to solve this problem Roll off Roof observatory

**URL:** https://discourse.nodered.org/t/how-to-solve-this-problem-roll-off-roof-observatory/31744
**Category:** General
**Created:** [19 August 2020 19:40 UTC](https://discourse.nodered.org/t/how-to-solve-this-problem-roll-off-roof-observatory/31744 "2020-08-19T19:40:31Z")
**Posts on this page:** 1
**Showing post:** 4

<div class="post-metadata">

### Author: ![UnborN](https://avatars.discourse-cdn.com/v4/letter/u/4491bb/32.png) [@UnborN](https://discourse.nodered.org/u/UnborN)
#### Post date: [20 August 2020 12:35 UTC](https://discourse.nodered.org/t/how-to-solve-this-problem-roll-off-roof-observatory/31744/4 "2020-08-20T12:35:56Z")

</div>

Hi Calberts,

Can you post an export of your flow to see how you have approached the solution ?  
and to better visualize what you have tried until now ?

Instructions of how to post can be found [here](https://discourse.nodered.org/t/how-to-share-code-or-flow-json/506)

by the way .. when the GPIO are open do we have to take in consideration how long they have to be open ? or the relays have a stop trigger ?

---

_[View the full topic](https://discourse.nodered.org/t/how-to-solve-this-problem-roll-off-roof-observatory/31744)._