Voina Blog (a tech warrior's blog) code, tech recipes, mindfulness, books, reviews and more

BlockChain: Georgia first government to use blockchain for property rights registry

By George Valentin Voina | February 10, 2017

After much hype finally there is a government that implements something with blockchain technology. Georgia together with blockchain company Bitfury, as stated on Bitfury web site: The Republic of Georgia has partnered with The Bitfury Group to advance transparency by developing a system for registering land titles using the Blockchain for the National Agency of… Read More: BlockChain: Georgia first government to use blockchain for property rights… »

Linux: Command line video editing

By George Valentin Voina | May 12, 2019

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The best way to do simple video in Linux is using the command line. This way you can do quick one liner commands that do the job fast and clean. My favourite tool is ffmpeg. Install ffmpeg: If you do not have it already installed to install ffmpeg simply do (in Fedora): Install the rpmfusion… Read More: Linux: Command line video editing »

Docker: Orchestrate multiple containers with docker-compose V2

By George Valentin Voina | February 9, 2017

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This is post in continuation of Docker: Orchestrate multiple containers with docker-compose The same application environment is specified using the docker-compose V2 specification. This looks very similar but with a simplified syntax and some extra features. STEP 1: List the existing images # docker images REPOSITORY TAG IMAGE ID CREATED SIZE 10.0.0.245:5000/test_app.v7 flat 53ac9d27fbb3 5… Read More: Docker: Orchestrate multiple containers with docker-compose V2 »

IoT: House climate monitoring

By George Valentin Voina | February 24, 2017

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It is very important for me to monitor the climate in the house. The solution that I have chosen is the Netatmo Weather Station for Smartphones Amazon DE , Amazon UK , Amazon US features: – main sensor that measures temperature, CO2 levels, humidity and noise levels. – indoor sensors that measure temperature, CO2 levels… Read More: IoT: House climate monitoring »

IoT: Car monitoring

By George Valentin Voina | February 9, 2017

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Is not enough to monitor the house you need something for the car also. He er the solution has two components: – the hardware: Bluetooth Diagnose Interface Software ELM-327 Canbus OBD 2 Plugs Car – the software: Dash – Drive Smart The hardware is a simple OBD device that I keep plugged in my OBD… Read More: IoT: Car monitoring »

IoT: House Alarm

By George Valentin Voina | February 9, 2017

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An IoT house alarm is just great. You get all the control and monitoring from a mobile device you always carry around. I have chosen as a solution: iSmartAlarm ISA3G Home Security Alarm System Features: – has a build in node station with siren – supports contact sensors: iSmartAlarm Accessories – Contact Sensor – supports… Read More: IoT: House Alarm »

IoT: House climate control

By George Valentin Voina | February 9, 2017

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This is one of the best applications for IoT devices and I think one of the first applications I know of. An intelligent thermostat that controls the heating in the house. My solution is based on NETATMO Thermostat for Smartphone/NTH01 NetAtmo web based dashboard: NetAtmo monthly report: Features: – is compatible with any gas heater… Read More: IoT: House climate control »

IoT: Intelligent power sockets

By George Valentin Voina | February 9, 2017

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There are old devices that do not have the logic in them so they are not intelligent devices. This legacy hardware can be controlled using intelligent power sockets. My solution was to get a bunch of Belkin WEMO sockets. They are fully supported by IFTTT so lost of nice use for them. I use them… Read More: IoT: Intelligent power sockets »

IoT: Human monitoring

By George Valentin Voina | February 9, 2017

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If you really want to monitor everything that includes you also, the human. The easiest monitoring is done using the smart phone. Obviously a smart phone is fully IFTTT compatible and has a lots of location and notification sensors already included. It is also one of the notification and control hubs for the other IFTTT… Read More: IoT: Human monitoring »

Blog Links: Another nice post about Blockchain

By George Valentin Voina | February 8, 2017

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The blockchain hype starts to get noticed also by the mainstream IT press. A very nice and detailed article about the current state and the possible future applications of blockchain in PC Magazine. Blockchain: The Invisible Technology That’s Changing the World Also related to this topic is the following article about The Meaning of Decentralization… Read More: Blog Links: Another nice post about Blockchain »