RFXtrx433E, Node-RED, MQTT and Home Assistant

This post describes how I have setup an RFXtrx433E device with a Raspberry Pi to transform data from inexpensive 433 MHz motion- and climate-sensors into MQTT messages on my local network. With the data available as MQTT messages I can store the data in InfluxDB for viewing in Grafana, show the data in Home Assistant and route the data to cloud services.

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Philips Hue and Home Assistant

Philips Hue is a line of wireless light bulbs that are controlled with Zigbee signals from a LAN-attached Philips Hue bridge. With the Philips Hue app it is very easy to set up a new system and adding new light sources is a breeze. There is a large set of 3rd party apps that can be used for interacting with the Hue system, but as my home automation system is based on Home Assistant, I use HA as the main controller for Hue. In this post I will show how I have configured Home Assistant for controlling my Philips Hue lights with automation. In an upcoming post I will describe how you can make your own web app for interacting with the light sources via the Hue API.

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Owntracks, Mosquitto and Home Assistant

OwnTracks is an open-source device tracker app for iOS and Android that lets you publish location data from your mobile phone. On the mobile app you can locate other connected devices on a map and get help navigating to the devices/friends/family members. With OwnTracks integrated in Home Assistant, you can create automation rules based on presence detection (for example, turn on the lights when someone gets home) or just keep an eye on where your youngsters (their phones) are from within the Home Assistant GUI.

What I really like about OwnTracks is that the creators encourages you to own and handle your private location data. Owntracks has a public broker but supports sending the location data with MQTT to your own private broker instead. To achieve this in my current home automation setup, I need to bridge an external broker with my within-LAN mosquitto broker that I use for my home automation.

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Home Assistant – integrating RESTful switches

I have started integrating my IoT-devices and services with the Home Assistant platform. See my previous post for details on getting started with Home Assistant and subscribing to MQTT messages:

Home Assistant – getting started and using MQTT sensors

My next attempt is to configure RESTful switches in HA for interacting with an existing web service that I use for controlling 433 MHz outlets. I will also add automation rules for the switches and test the voice command in Home Assistant.

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Home Assistant – getting started and using MQTT sensors

I’ve been searching for an easy-to-get-started home automation platform that can be extended and customized as my needs grow. After struggling with OpenHAB, Domoticz and Freedomotic, I’ve found Home Assistant to be a much better fit for me. My main requirements are that the system should be open-source, have good tutorials & documentation, work well on a Raspberry Pi and be extensible for my likely future needs. I will spend this and a few upcoming posts with my Home Assistant experiments.

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