A web app for IoT data visualization

As described in some earlier posts, I have a setup at home with IoT devices that publish measurement messages to a Raspberry Pi via MQTT. The RPi stores the data in a database and also forwards the messages to a cloud service (Adafruit IO). In this post I have made a self-hosted data visualization web app... Continue Reading →

A self-hosted MQTT environment for Internet of Things – Part 1

MQTT (MQ Telemetry Protocol) is a lightweight machine-to-machine communication protocol that works on top of TCP/IP and it is very much suited for usage in an Internet-of-Things scenario. MQTT uses the publish-subscribe pattern where the clients subscribe to topics and publish messages through a broker. There are many different framework implementations of MQTT as well as complete cloud services... Continue Reading →

Daemonize that Python script!

This post builds on a previous experiment where I made a remote control app for my outlets with a Raspberry Pi, Python/Flask and AngularJS. For the backend to be really useful, I want to make it behave as a service in Linux. It should start automatically after a reboot and there should be some control mechanism for... Continue Reading →

Raspberry Pi & PS2 EyeToy

Last week I finally got around and bought my first Raspberry Pi. Getting it up and running with Raspbian via Noobs was a breeze and after playing around with the OS and Python for a while I decided to get some real use out of this little machine. My first experiment aimed at a home security... Continue Reading →

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