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Thingsmatic

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Category: Linux

Posted on 14 February, 202127 February, 2021

Police events with maps and open data

The Swedish Police has an Open API where the latest public police notifications can be fetched. I have made a self-hosted system that regularly collects that data and stores it…

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Posted on 3 November, 201630 October, 2017

Preparing the remote control app for Christmas

Winter is soon to arrive in Sweden and the amount of daylight is decreasing every day. Thus it’s time to set up some extra light sources indoors and outdoors. I…

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Posted on 10 July, 201610 January, 2018

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…

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Posted on 24 June, 201610 January, 2018

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…

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Posted on 18 June, 201630 October, 2017

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,…

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Posted on 22 May, 201610 January, 2018

Adding some security to Raspberry Pi – part 1

My Raspberry Pi  has turned into a central hub for automation and connections to various devices at home. As I want to expose some services outside of the local LAN,…

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Posted on 15 May, 201610 January, 2018

RCSwitch revisited – control RC outlets with a web app

In two previous posts, I used the RCSwitch and pi-switch libraries for communication between an Arduino Uno and a Raspberry Pi. I touched briefly on the main purpose with these libraries…

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Posted on 20 March, 201630 October, 2017

Arduino to Raspberry wireless communication – some improvements

In my previous post, I experimented with sending measurements values from an Arduino UNO to a Raspberry Pi via a 433 MHz radio protocol. After testing the setup for a…

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Latests posts by Lars

  • Puzzling with React and Redux 29 July, 2021
  • GitHub Pages and GitHub Actions 28 July, 2021
  • Police events with maps and open data 14 February, 2021
  • Traffic information with OpenLayers and Angular 23 January, 2021
  • An audio streaming app with Angular and PrimeNG 9 January, 2021
  • Geolocation with Angular and .NET Core – part 3 4 February, 2020
  • Geolocation with Angular and .NET Core – part 2 4 February, 2020
  • Geolocation with Angular and .NET Core – part 1 26 January, 2020
  • Making a 2D platform game with Godot 3.0 17 February, 2018
  • RFXtrx433E, Node-RED, MQTT and Home Assistant 7 January, 2018
  • A memory game with React 6 January, 2018
  • A React app for Philips Hue lights 25 November, 2017
  • Philips Hue and Home Assistant 24 November, 2017
  • Home Assistant – notifications on iOS 10 November, 2017
  • Blynk, PlatformIO and ESP32 10 August, 2017
  • Using CH340 devices with OSX Sierra 7 August, 2017

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