Written by Petr Bravenec, 09.10.2024
Although Meshtastic is mostly understood as a communication network, its real strength lies in its heavy focus on IoT (Internet of Things)!
Written by Petr Bravenec, 18.06.2024
Mestastic - energy-efficient long-distance communication
Written by Petr Bravenec, 06.12.2023
Acme.sh is an utility for easy issuing Let's Encrypt certificates. How to do it so that the server is automatically restarted after the certificate is renewed?
Written by Petr Bravenec, 05.10.2021
We have a lot of devices worldwide that are "connected" to internet, but they are hidden behind NAT, they have no public IP address and the access to them requires a lot of proffesional work. How such device can get its own public IP address?
Written by Petr Bravenec, 26.08.2021
Mastering artificial intelligence is not as easy as it may seem from various online courses or books. What obstacles stand in the way?
Written by Petr Bravenec, 22.07.2021
We have the entire corporate network built on IPv6. It works well inside, but how to get inside from a network without IPv6?
Written by Petr Bravenec, 13.04.2021
Video streaming system: several cameras and lots of users
Written by Petr Bravenec, 20.05.2020
AMD's Bulldozer processor do not have a good reputation. Today, it is quite useless to discuss why this is so.
Written by Petr Bravenec, 15.04.2020
3D printed box for Raspberry Pi 4B - freely available STL and FreeCad files
Written by Petr Bravenec, 23.03.2020
The Simul6 application is used to numeric simulation of electromigration. The electromigration methods are used for the chemical analysis for example in the pharmaceutical industry for quality control or for detection of undesirable impurities.
Written by Petr Bravenec, 19.03.2020
Along with coronavirus, a number of requests for remote access to corporate networks have emerged. Some of our clients have IPv6 in their network, so we are deploying a VPN built on IPv6. On Windows workstations, only IPv4 is sufficient.
Written by Petr Bravenec, 05.01.2020
The successful year of 2019 is behind us. We completed and deploy several projects, other big tasks are ahead of us.
Written by Petr Bravenec, 22.11.2019
We employe new gatekeeper - it can suspend and wake-up computers, it can turn-off lights when last office member leaved, it can report aliens.
Written by Petr Bravenec, 25.10.2019
We can recognize faces using computer with compsumption less then 10 watts.
Written by Petr Bravenec, 10.09.2019
In first days of september we visited the VacuShape manufactory. We develope a touch screen application for the machine.
Written by Petr Bravenec, 20.06.2018
If you want to make some services inside your intranet available to public, you can use reverse proxy.
Written by Petr Bravenec, 11.06.2018
We can control lights in our office from a computer
Written by Petr Bravenec, 23.05.2018
BeagleBone – přepis přednášky ve Valašském Meziříčí na akci Tkalci na webu.
Written by Petr Bravenec, 14.02.2018
I received a very cheap sensor for measuring atmospheric pressure. Connection of the sensor is mather of a few minutes.
Written by Petr Bravenec, 06.02.2018
Using new cape 2x232 for BeagleBone Black example – voltage measuring
Written by Petr Bravenec, 01.02.2018
We have added support for gzip compressed transfer
Written by Petr Bravenec, 15.12.2017
We are using CouchDB many years successfully. Few days ago someone installed an applicaton for crypto currencies mining through CouchDB.
Written by Petr Bravenec, 13.10.2017
Parallel computation can be stopped or canceled using QFutureWatcher class
Written by Petr Bravenec, 11.10.2017
Using blocking and non-blocking functions, QFuture class
Written by Petr Bravenec, 05.10.2017
Inaccuracies of photovoltaic panel mounting can lead to performance drops, to unexplained monitoring alarms and to ignoring real problems. Without a detailed analysis of the power plant, it is not possible to distinguish between the operational characteristics of the power plant and the actual faults.
Written by Petr Bravenec, 04.10.2017
Another example of CLI application for parallel calculations - map + reduce, Monte Carlo method
Written by Petr Bravenec, 01.10.2017
Simple CLI application example using parallel alogithm map
Written by Petr Bravenec, 26.09.2017
The road from debility to geniality
Written by Petr Bravenec, 24.09.2017
Qt's tools for easy parallel calculations
Written by Petr Bravenec, 14.02.2017
Simple application shows foreign currencies pairs price on your KDE5 desktop
Written by Petr Bravenec, 07.02.2017
Simple application show stock chart on the KDE5 desktop
Written by Petr Bravenec, 10.01.2017
Implementace HTML5 event stream klienta v Qt
Written by Petr Bravenec, 23.08.2016
Implementation in C++ an Qt
Written by Petr Bravenec, 07.07.2016
In addition to the developer's trivial problems we are solving fun things occasionally.
Written by Petr Bravenec, 24.03.2016
Bugs fixed, tests written
Written by Petr Bravenec, 03.02.2016
Hobrasoft Httpd server can communicate using SSL. But it cat also authenticate your application without password.
Written by Petr Bravenec, 29.11.2015
Hobrasoft Http server now supports SSL
Written by Petr Bravenec, 06.10.2015
We have fixed some bugs in http server - download new version.
Written by Petr Bravenec, 30.08.2015
What problems we have experienced with MySql on photovoltaic plant and how we replaced it with SQLite
Written by Petr Bravenec, 04.05.2015
Communication system for medical institutions
Written by Petr Bravenec, 27.03.2015
How to use HTML5 event stream with HobrasoftHttp server.
Written by Petr Bravenec, 19.03.2015
How to create universal API with HobrasoftHttp server in C++ and Qt
Written by Petr Bravenec, 27.02.2015
Beaglebone black cape with 4
Written by Petr Bravenec, 26.01.2015
It is better to use own http server for some applications. We are offering you http server for C++ and Qt
Written by Petr Bravenec, 08.12.2014
Beaglebone Black and Beaglebone White are different. How to connect thermometer in new Beaglebone black?
Written by Petr Bravenec, 26.06.2014
New version of Deko the CRM released.
Written by Petr Bravenec, 02.06.2014
Applications made by Hobrasoft are developed multilingual. How to switch the language in Deko the CRM?
Written by Petr Bravenec, 29.05.2014
New version of Deko the CRM released.
Written by Petr Bravenec, 19.05.2014
Deko reports are made using HTML and Javascript - simply, quickly an easily.
Written by Petr Bravenec, 29.04.2014
New version of Deko the CRM released.
Written by Petr Bravenec, 23.04.2014
I use the loop device in Linux for a long time. The loop device is handy when I need to mount CD-ROM ISO image - but this is a thing I made last time few years ago.
Written by Petr Bravenec, 15.04.2014
Although the Deko the CRM was created for some specific request from one of our clients, we used to use the Deko very successfully in our company, too.
Written by Petr Bravenec, 04.04.2014
Qt toolkit has built-in html editor - class QTextEdit. The problem is that the editor has no controls which allows you to format the text.
Written by Petr Bravenec, 28.03.2014
New version of Deko the CRM released.
Written by Petr Bravenec, 24.03.2014
Simple tool to remote support: Hobrasoft Remadmin
Written by Petr Bravenec, 19.03.2014
Deko the CRM is a distributed CRM - what is it distributed?
Written by Petr Bravenec, 16.03.2014
It is very simple to build an embedded computer for data acquisition today - find an ARM board, employ hardware specialist and make a expanding board. Install and configure Linux, database, web server, your own application and that's all. That's all! Or not?
Written by Petr Bravenec, 11.03.2014
New version of Deko the CRM released.
Written by Petr Bravenec, 09.03.2014
Last week I wrote an article how to connect thermometer to BeagleBone. See how it works: http://beagle.bravenec.eu.
Written by Petr Bravenec, 07.03.2014
CSV import added. Some bugs fixed.
Written by Petr Bravenec, 02.03.2014
Some time ago, before the world begin to play with Raspberry PI, I started to play with BeagleBone. BeagleBone is small ARM computer similar to Raspberry PI. I found some DS1820 thermometer. Driver is contained within Linux kernel so it should not be a problem to connect the thermometer to Beaglebone.