Arduino Slovakia

Blog for fans of Arduino and electronics.

Arduino

Arduino is an open-source platform based on Atmel microcontrollers and a graphical development environment. The Arduino board is designed to be used immediately for experiments. Just plug it into a USB, install the development environment and start programming.

If you are here for the first time, start a short tour of this site.

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Blog

List of current articles.

Timer1 - 8, 9 and 10-bit PWM 6/17/20

The function analogWrite in Arduino only supports 8-bit mode. You can also turn on 9 and 10-bit mode on the timer1, which will give you a higher resolution for the PWM signal. In this article, we will show you how to do this.

Debugging the contents of the registry from the microcontroller 5/28/20

Even as Arduino users, you know that there are many system registries in the microcontroller. By setting individual bits in the register, you control the behavior of various peripherals. In front of Arduino users, the registers are packed into functions. When you examine the microcontroller more deeply, you will find that you have to adjust them from time to time. Then you may want to display the individual bits as you find them in the microcontroller datasheet.

Customizing the appearance of the home page 5/27/20

I've redesigned the home page to look better on mobile phones. I removed all the unnecessary information from it. These were hypertexts that no one clicked on anyway. And I changed the order of the information displayed so that the articles were the first, followed by a list of changed pages.

How to use the template for clear listings on the serial port 4/12/20

To write the text to the serial port, we use the Serial object and its print function. If we need to write more information, the programming becomes an endless copy of the same command. A large number of nearly the same commands appear in the source code, with only the parameter changed. Today we'll show you how to solve this elegantly with a template.

Node.js application as a Windows service 4/3/20

In this article, we'll show you how to install the Node.js application on Windows as a service. This ensures that the application will start when you turn on your computer. This procedure uses the PM2 package.

Pages

Recent changes on the site.

Node.js 4/3/20

Toto je úvodná stránka k využitiu Node.js na spoluprácu s Arduinom. Node.js je vývojové prostredie, umožňujúce spúšťanie javascriptu priamo na vašom počítači, alebo na serveri v cloude. Postupne tu pribudnú aj informácie, ktoré úplne nesúvisia s Arduinom. Ale mnohým z vás sa môžu hodiť, pretože vývoj serverov na Internete sa presúva práve ku takýmto technológiám.

Transistor 3/21/20

The transistor is the basic building block of any electronic device. Integrated circuits consist mainly of transistors. The basis of the transistor is several layers of semiconductor transitions. Usually these are two PN transitions located very close together. This would seem to indicate that the transistor is two diodes together, but such an analogy cannot be used because the two PN layers are so close together that they interact. This is not possible with two diodes.

Časovač (timer) 3/21/20

Arduino Uno používa mikrokontrolér ATmega328P a praktický každý mikrokontrolér v sebe obsahuje časovače. Časovače sa dajú využívať na množstvo úloh. Postupne sa s týmito možnosťami oboznámime.

ATtiny85 2/16/20

This is a page that serves as a signpost for experiments with a smaller version of Arduino. ATtiny85 has 8K of flash memory, 512 SRAM and 512 EEPROM. It may seem a little, but even in such a small memory you can get a pretty big program. ATtiny85 is my favorite microcontroller and only in exceptional situations I replace it with ATtiny84 microcontroller, which has more pins and a bit better peripherals.

A/D converter 2/15/20

The analog-to-digital converter makes the connection between the analog and digital world in Arduino. The surrounding environment often provides an analog signal, but we cannot directly process it. We need to convert it to digital form using an A/D converter. The converter in Arduino is ten bit. This means that it can divide the analog signal into 1024 different values.

What you will find here

You can find basic information about Arduino on the site. You can use the quick index of root pages at the top of this page. Or use a full index of pages where there are all pages of the site. You can also track progressive changes in the site history.

The second part of the site is a blog. There are sequentially written blogs that are sorted by time. The page is usually the starting point of the topic, and there are more articles in the blog that describe the topic.

The third part of the site is a list of downloads. It contains libraries, datasheets, and programs for Arduino. All programs for Arduino are also available on GitHub.

The fourth part consists of applications. You will find there several applications that interactively calculate the results from the entered values. For example, there is Arduino Timer Calculator.

The fifth part is a list of microcontrollers from Atmel.

The last part of the site is a list of videos that are complementary to the site or the blog information.

About this page

Here's the information I've learned about Arduino. The Arduino fans community has a good habit of sharing all the knowledge, and everyone has access to the source texts of the programs as well. This is the second version of the page. I originally used Google Sites where I wrote notes. It took about a year and I have no reason to conceal that at the time I did not know anything about electronics. But by using Arduino, I quickly penetrated the secrets of electronics. I found quite helpful my extensive experience with programming in C++, so I was able to throw myself straight into the creation of programs.

Gradually, the volume of data has increased and Google Sites were not enough. So I switched to Google App Engine and in Python I programmed these pages. Google App Engine, on the one hand, is a robust system running on the same infrastructure as Google itself. On the other hand, this is a relatively novel system, where a lot of common things are not available. But programming itself in it is very easy and, compared to PHP, you will wonder at the possibilities there are here.

Connecting to the world

The following pages are related to this one.

  • Facebook - Here I am informing you about what I am doing right now.
  • Youtube - Playlist. If you want more details about videos, you can find them directly on this page.
  • Twitter.com/arduinoslovakia - I'm only publishing video information at this time, but after adding English translations, I would like to inform you about news in English here.
  • Sites Arduino Slovakia - The original version of this page. It contains approximately 100 more pages related to Arduino that have not been moved here.
  • GitHub Programs - All programs written for this page.
  • GitHub KiCad Library - Part library for KiCad.
  • Macko watches macko travels, macko comments - The Travel Blog, where things that are not related directly to Arduino appear.

Site development information

I try to make the content of the site so that it can be easily displayed on both the desktope and the mobile phone. This is working quite well. I also work on translating these pages into English and Czech. I'm using the Cloud Translation API. Neural network translations are improving every day, allowing allowing us to leave translation to artificial intelligence. Some mistakes may appear in the translations, but this should not prevent a comfortable reading of these pages in your native language.

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Node.js 4/3/20

Toto je úvodná stránka k využitiu Node.js na spoluprácu s Arduinom. Node.js je vývojové prostredie, umožňujúce spúšťanie javascriptu priamo na vašom počítači, alebo na serveri v cloude. Postupne tu pribudnú aj informácie, ktoré úplne nesúvisia s Arduinom. Ale mnohým z vás sa môžu hodiť, pretože vývoj serverov na Internete sa presúva práve ku takýmto technológiám.

Transistor 3/21/20

The transistor is the basic building block of any electronic device. Integrated circuits consist mainly of transistors. The basis of the transistor is several layers of semiconductor transitions. Usually these are two PN transitions located very close together. This would seem to indicate that the transistor is two diodes together, but such an analogy cannot be used because the two PN layers are so close together that they interact. This is not possible with two diodes.

Časovač (timer) 3/21/20

Arduino Uno používa mikrokontrolér ATmega328P a praktický každý mikrokontrolér v sebe obsahuje časovače. Časovače sa dajú využívať na množstvo úloh. Postupne sa s týmito možnosťami oboznámime.

ATtiny85 2/16/20

This is a page that serves as a signpost for experiments with a smaller version of Arduino. ATtiny85 has 8K of flash memory, 512 SRAM and 512 EEPROM. It may seem a little, but even in such a small memory you can get a pretty big program. ATtiny85 is my favorite microcontroller and only in exceptional situations I replace it with ATtiny84 microcontroller, which has more pins and a bit better peripherals.

A/D converter 2/15/20

The analog-to-digital converter makes the connection between the analog and digital world in Arduino. The surrounding environment often provides an analog signal, but we cannot directly process it. We need to convert it to digital form using an A/D converter. The converter in Arduino is ten bit. This means that it can divide the analog signal into 1024 different values.