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…
The Sensor433 library and Geeetech transmitters and receivers
As I use 433MHz transmitters for sending sensor data from many of my IoT-nodes, I have made a re-usable Arduino library for this purpose. The transmitted sensor data is picked…
Setting up a Raspberry Pi as a Minecraft server
My kids are occasional Minecraft addicts. As I want to support their creative activities, I have setup a Minecraft server at home so they can collaborate with friends on their…
InfluxDB and Grafana for sensor time series
I’ve started using InfluxDB for storing my sensor data as time series. The main reason for this is that it allows me to use Grafana for analyzing the data. This…
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
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…
Monitoring CPU temperatures on a Raspberry Pi with MQTT
Recently I’ve had problems with my Raspberry Pi 3 overheating though I use a heat sink for the processor and have a very modest load on the machine. When the RPi…
The MicroPython Lego Bot
In the quest for getting my kids interested in coding, I’ve decided to make them a message controlled bot car with Lego bricks and an ESP8266 board. The idea is to…
Thingsmatic 