# Function node wait for 24 hours/ irrigation timer (SOLVED)

**URL:** <https://discourse.nodered.org/t/function-node-wait-for-24-hours-irrigation-timer-solved/10963>\
**Category:** General\
**Created:** [9 May 2019 16:14 UTC](https://discourse.nodered.org/t/function-node-wait-for-24-hours-irrigation-timer-solved/10963 "2019-05-09T16:14:43Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Poodlepapa](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/poodlepapa/32/8174_2.png) [@Poodlepapa](https://discourse.nodered.org/u/Poodlepapa)\
**Post date:** [9 May 2019 16:14 UTC](https://discourse.nodered.org/t/function-node-wait-for-24-hours-irrigation-timer-solved/10963/1 "2019-05-09T16:14:43Z")

</div>

I have built a project to water my raised garden beds. I'm using an MCP3008 connected to a raspberry pi zero. All of the components are working great, but... I'd like to monitor and graph the data from the moisture and temp sensors all day but have the watering happen once a day. My flow is set up to check the soil every 20 seconds and then calculate if it needs water. Right now it will turn on the water as soon as it senses that the soil has past the 'to dry" threshold I would like for it to only check if it needs water every 24 hours. How do I constantly monitor the soil but only act once a day? If there is a way to code a function node to pole the data and then decide to water only after getting an input from the inject node? If so that would work fine.

I"ve attached the flows here-

 ![49%20AM](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/a/a5b7a7c6e932ce9afbfc31e906d88c1920bef664.png)

```auto
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```

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [9 May 2019 16:34 UTC](https://discourse.nodered.org/t/function-node-wait-for-24-hours-irrigation-timer-solved/10963/2 "2019-05-09T16:34:22Z")

</div>

You could put a check in your Soil Hydration function to test what time of day it is and only take action the first time that you pass the required time.

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [9 May 2019 16:41 UTC](https://discourse.nodered.org/t/function-node-wait-for-24-hours-irrigation-timer-solved/10963/3 "2019-05-09T16:41:49Z")

</div>

Or if you don't care what time of day (just that it is once a day) put a Delay node in front of the function, set to Rate Limit, once a day, and Drop Intermediate Messages.

---

<div class="post-metadata">

**Author:** ![Poodlepapa](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/poodlepapa/32/8174_2.png) [@Poodlepapa](https://discourse.nodered.org/u/Poodlepapa)\
**Post date:** [9 May 2019 16:47 UTC](https://discourse.nodered.org/t/function-node-wait-for-24-hours-irrigation-timer-solved/10963/4 "2019-05-09T16:47:54Z")

</div>

Great Idea!! I will test that out, it seems like that would work great. Thank you very much

Here is the working flow-  
 ![24%20AM](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/3/381ce06e879a8750b92f7d19bc80002849cca0c5.png)