Creation of own network of self-made devices based on Arduino (Part 1)

Creation of own network of self-made devices based on Arduino (Part 1)Good afternoon, Khabravchans! Today I will tell you about the integration of Arduino from PC to Windows and other devices. It was already in 201? my Arduino boards of various models came to me at last.
 
 
I have long wanted to build a smart house, and decided to use this platform. Why? Well, I know quite well C # and a little C ++, and as you know, firmware for Arduino are written on the changed pluses. In addition, the platform has a digital-to-analog converter, which simplifies the work with analog sensors. In addition, the platform is very well known and has a large modular base.
 
 
For all ...
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Winter and summer in one color? Search for seasonality in the data

Winter and summer in one color? Search for seasonality in the data  
 
Once we decided to see what seasonal interests there are among users of 2GIS in different cities. Splashes of interest in flowers, New Year's gifts and tires - are quite expected. We decided not to limit ourselves to them and go further, having checked all areas of activity in all 113 cities of presence.
 
 
In this article I will tell you how we searched for seasonality and what features of user behavior they found.
 
 
criterion of inversions .
 
 
If the hypothesis is not rejected, then it is ...
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Determination of the ballistic-temporal characteristics of the motion of the center of mass of the paratrooper, dropped from the plane

Introduction


 
To determine the ballistic-temporal characteristics of the motion of the center of mass of the paratrooper, we must choose a simplified mathematical model, which is quite accessible for analytical research and at the same time preserves the most characteristic features of the initial object.
 
For the construction of simplified mathematical models of the parachutist movement, analysis, determination, and systematization of the permanent and temporal parameters are carried out.
 
There are no regular and sufficiently substantiated methods for constructing nonlinear mathematical ...[/h]
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ReactOS became self-sufficient in the year of its 21st anniversary

Hello, Habr! We have sudden news!
 
 
ReactOS became self-sufficient in the year of its 21st anniversary

 
Pierre Shvetser, one of the main developers of the operating system ReactOS, made in his twitter the resonant message is . Now new builds of the operating system can be collected, using only the tools of this OS and its official build environment RosBE. The assembly environment itself is also built from the sources when the assembly script is run for the first time.
 
 
Thus, the ReactOS OS has reached a state called Self-Hosted . It is symbolic that this event occurs at a time when the project...
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Insider Dev Tour: live broadcast

Hello! Today at 10:00 we begin the live broadcast of the conference Insider Dev Tour. For you, our colleagues from Redmond will speak and talk about the company's newest technologies in the areas of development under Windows, web development, machine learning and mixed reality. Join Live at the Cut!
 
 
Insider Dev Tour: live broadcast
 
 

Live broadcast of


 
Below you can watch the live broadcast of the event, which right now takes place in the space Digital October in Moscow.
 
 

 
 
...[/h]
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OutOfMemory and GDI + sometimes not at all OutOfMemory

During the last project at work, my colleague and I encountered that some methods and constructors in System.Drawing fall from OutOfMemory in completely normal places and when there is still a lot of memory free.
 
referencesource.microsoft.com . There will be the following:
 
public LinearGradientBrush (PointF point? PointF point? Color color? Color color2) {
IntPtr brush = IntPtr.Zero;
int intact = SafeNativeMethods.Gdip.GdipCreateLineBrush (
new GPPOINTF (point1),
new GPPOINTF (point2),
color1.ToArgb (),
color2.ToArgb (),
(int) WrapMode.Tile,
? out brush
);
if (status! = SafeNativeMethods.Gdip.Ok)
throw ...
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ZFSin: working with ZFS is native to Windows

ZFSin: working with ZFS is native to Windows
 
While doing a search on Habra for the word ZFS, I found almost fifty articles one way or another mentioning a wonderful file system with a name. Separately, for example, you can mention a lot of new materials " ZFS on Linux: keep from the fields 2017 " And " ZFS - the best file system (yet) ". Did this search query, that's why
 
 
For more than 7 years, people have been asking themselves, " ...
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And which Windows was the first for you? Birthday Windows 3.0

Hello, Habr! Today, May 2? the birthday of Windows 3.0. 28 years ago (imagine?) Was released the first version of Windows, which gained wide popularity among users. We decided a little ponastolgirovat and wrote an article about significant PC-versions of the system. Let's start with a unit and come to the top ten, but there are more than ten of them. More under the cut.
 
 
And which Windows was the first for you? Birthday Windows 3.0
 
So, let's go! Microsoft Windows was introduced by Bill Gates on November 1? 1983. Initially, Windows was just a graphical add-in program for the operating system of the 80's and 90's MS-DOS.
 
 

Windows 1.? 1985


 

 
...[/h]
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As we at Tinkoff used Windows Hello to authenticate the user

As we at Tinkoff used Windows Hello to authenticate the user

 
Windows Hello - a technology for biometric authentication of the user by fingerprint, eye retina, three-dimensional face scanning and even the venous palm pattern.
 
In the field of financial services, it is important to ensure an unmistakable and secure authentication of the user. For authorization, we use a two-factor system from the login and password bundle or the phone number and password with the confirmation by the code sent to the attached mobile phone number. To further simplify access to the authorized zone, a 4-digit PIN is used.
 
 
After authorization and creation of the PIN-code...
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Docker under Windows for development, analysis of pitfalls

Docker under Windows for development, analysis of pitfalls This publication is a review of the features of container virtualization Docker under the Windows system.
 
 
It does not pretend to be exhaustive and will be updated and supplemented as necessary.
 
 
For practical guidance from the ground up I advise you to refer to of this publication .
 
 

Table of contents


 
 
Presetting
 
Choose between Docker Toolbox on Windows or Docker for Windows
 
Windows containers and Linux containers
 
Features of mounting folders
 
Mounting from the host machine or volume
 
...[/h]
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