Location Aware Notification Lights with Node-Red and IFTTT

I am in the habit of going on cooking sprees while listening to music… loudly. I only share one wall with a neighbor here in the loft, and that neighbor is very tolerant. On a Sunday afternoon, with multiple dishes going at a time, my most used smart home feature is “Alexa, set a meatball timer for 25 minutes”. Having Alexa keep track of all my timers is really helpful when my hands are full. The problem is that I rarely hear the timer, and have burned a few things not paying attention.

Using IFTTT, Node-Red, and Home Assistant I can blink the lights in the room when the Alexa timer goes off – even if I wander off to a different room.

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More Nodes for Home Automation: state-machine, actionflows, dashboard, statistics

I’m keeping a running list of useful nodes I’ve found for home automation. Here’s a couple of more I came across recently in the Node-Red library.

  • dashboard – Create an entirely custom, live dashboard. Amazing!
  • statistics – Some useful statistical functions, based on Simple Statistics
  • state-machine – Manage a state machine with your own parameters
  • actionflows – This one seems extremely promising. Package flows as reusable functions that can be looped, prioritized, and benchmarked.

I think making a dashboard is my next project, which I will certainly document here on the blog.

I am wondering if state-machine could be used to manage the state of a finicky IR controlled fan I have. I was never able to find a way to do this in Home Assistant accurately. Since Node-Red can do more complicated logic, it could monitor my fan related sensors and output in the format for the MQTT Fan component. Interesting!

Morning Radio

Going Further with Home Automations in Node-Red

In my last post about using Node-Red to make automations with Home Assistant, I showed some very simple flows for turning lights on and off. While it is important to get used to the Node-Red way of doing things and it’s interface, none of the examples in my post are very compelling. All of that can easily be accomplished in Home Assistant already, so what makes Node-Red so awesome?

Let’s examine some of Node-Red’s features a little closer to get a better idea of what’s going on, how we can use that to create dynamic automations with Home Assistant, and an example of an alarm clock radio flow that uses some advanced logic nodes.

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Basic Node-Red Flows for Automating Lighting with Home Assistant

Smart light bulbs are probably the first thing everyone getting into home automation buys. It is easy to see the applications for them – have the lights come on at night, turn off when you’re home, etc. It’s very satisfying to have the lights react to the day and your activities, and my goal with automating lighting has always been to not have to think about it, for it to work in the background.

In my initial post about Home Assistant and Node-Red, I explained the initial hoops you have to jump through to get both pieces of software up and running and talking to each other. Now we will start using them together in some very simple flows to control lighting, to get a better understanding of how Node-Red works, and to start to delve into this powerful tool.

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Big List of Useful Home Automation Nodes for Node-Red

An ongoing list of nodes I have found useful for constructing home automation flows. I have not included device platform nodes, as all state tracking and actions are performed in Home Assistant.

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