Posts by peter

3 tips for buying a second hand DSLR camera

If you want to get into digital photography with a DSLR camera but dont want to spend to much money on a camera you should defenitaly look to the second hand market. But don’t just buy by looking at the camera type, functionalities and price tag. Some other aspects need to be taken into account…

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Installing and testing Mosquitto MQTT broker

Installing mosquitto MQTT broker on Ubuntu MQTT is a very handy and lightweight subscribe/publish system. It creates some kind of universal language set up communications between multiple applications. Those applications can run on a mobile phone, on a desktop PC or even microprocessors. Mosquitto is a frequentkly used broker to manage the communication between subscribers…

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Setting up an Ubuntu IoT home automation server in VMWare

To host all required services and applications for my home automation system I created a virtual machine running Ubuntu. By doing so I can play around and roll back to an earlier backup when things go wrong. What you need to get started: Host with VMWare player Ubuntu 16.10 LTS server installation iso A (sub)domain…

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Using a Nest thermostat with a Junkers boiler (and OpenTherm)

I’ve been hesitating to buy a Nest thermostat for a long time since I wasn’t sure it would work with my already installed Junkers boiler. The Junkers boiler is equipped with modulation so it would be unwise to simply use an ON/OFF temperature control. Unfortunatly Junkers doesn’t support OpenTherm out of the box. And that’s…

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