# Tracking recently changed events?

**URL:** https://discourse.nodered.org/t/tracking-recently-changed-events/32918
**Category:** General
**Created:** [15 September 2020 15:51 UTC](https://discourse.nodered.org/t/tracking-recently-changed-events/32918 "2020-09-15T15:51:22Z")
**Posts on this page:** 1
**Showing post:** 22

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### Author: ![ScotchTape](https://avatars.discourse-cdn.com/v4/letter/s/e495f1/32.png) [@ScotchTape](https://discourse.nodered.org/u/ScotchTape)
#### Post date: [17 September 2020 14:38 UTC](https://discourse.nodered.org/t/tracking-recently-changed-events/32918/22 "2020-09-17T14:38:49Z")

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No doubt many people are using Node Red for home automation. That's how I learned about Node Red in the first place, from Hubitat's forums. Though I believe Hubitat's node was only recently created. And I have most definitely searched the forums for help on a number of things I wanted to accomplish. The documents embedded with each node is also very helpful! I've probably converted 90% of my hubitat rules to node red flows and am very happy with how well they work. They were very basic event driven flows though. I.e. button controllers, lighting schedules, alexa announcements.

> [@TotallyInformation](#):
>
> A search would also show up a great many examples of this kind of processing & multiple options have been given throughout this thread.

Everyone on this thread has been extremely helpful. And even by the first two replies I was able to get a working flow that made sense to me.

My searches for what I was particularly looking for did not yield too many examples. Maybe 2 out of 50? I attribute this to three things. a) Used the wrong search terms. b) Confused node red's "low-code programming" with "no code" programming. I skipped over anything involving custom functions though this is probably what I'm going to use, and lastly c) skipping over posts I thought were irrelevant to me (I'm talking about you [openhab](https://discourse.nodered.org/t/node-red-as-replacement-rule-engine-for-openhab/298#variables) post! Rookie mistake!)

As an aside, the openhab post showed a visual representation of switches in series that @robmak was talking about that I just couldn't get. What I was doing was wiring up device -\> switch -\> device -\> switch. -\> command. The openhab example shows switches literally wired together, but the switch input/output were based on variables.

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