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Articles by Martin Mohr
Step by Step " Linux Magazine
Build a Robot with the Fischertechnik Maker Kit Bionic © Lead Image © Francesco Tammaccaro, 123RF.com Author(s): The Fischertechnik Maker Kit Bionic lets you enter the world of walking robots. We'll show you what it takes to bring this robot to life. Ever since the first Star Wars movie, I've been fascinated by all kinds of walking robots. The Fischertechnik Maker Kit Bionic (Figure 1) may not be an All Terrain Armored Transport (AT-AT), but it's a great choice for getting started on your desktop.
Better Safe than Sorry » Linux Magazine
There are good reasons for using multiple sources to supply power to a Raspberry Pi. Of course, there are a few things to think about, and some electrical engineering wizardry is unavoidable. To understand how some circuits work, you will also need to familiarize yourself with the characteristic curves of a couple of components. This article takes a look at a solar-powered weather station that repeatedly fails during periods of bad weather.
Adding Color " Linux Magazine
MicroPython – WS2812 aka NeoPixel © Chris Barbalis on Unsplash Author(s): The Adafruit NeoPixel (WS2812) is an RGB LED that you can program via a serial protocol. We show you how to control the LED with a few lines of MicroPython. The WS2812, also known as the Adafruit NeoPixel, is a programmable RGB light-emitting diode (LED). It consists of a controller and three LEDs in the colors red, green, and blue. There is a data byte in the controller for the brightness of each individual LED.
Code Blocks " Linux Magazine
As the name suggests, PictoBlox is a block-based development environment. What's unusual about it is the option to upload programs directly to an MCU. I will be looking at an example to discover how to implement projects with PictoBlox. You can download the development environment free of charge from the manufacturer's homepage [1]; different versions are available for all common operating systems.
Off to the Race Track » Linux Magazine
Sometimes a project idea fails because of the hardware setup: Maybe the parts you chose do not match, a component you need is unavailable for weeks on end, or the design turns out to be so unstable that the whole thing unravels. Being aware of these problems, Fischertechnik offers a robust basis for building mobile robots in the form of their Maker models. You can choose which controller, which programming language, and which electronic components you want to use.
Nicely Packaged " Linux Magazine
The Raspberry Pi 5 offers many new functions. Unfortunately, the original case that is sold by the Raspberry Pi Foundation is too small to make full use of all the options. This starts with the GPIO header: The 40-pin plug is very awkward to connect. The lid does not close properly, and it covers the fan. The case itself is so tightly dimensioned that the factory-fitted fan struggles to circulate the air. Things get even more cramped if you use the Active Cooler [1].
Weather Outlook " Linux Magazine
If you frequently check the daily weather forecast, having your own weather station might be a good thing. However, professional devices are expensive, and they also mean that the amateur meteorologist is locked in to the display panels of the weather station vendor. As a rule, it is impossible to use the measured values in your own applications. The cost driver is not typically the sensors in the weather stations, but the display modules.
Control Your Containers » Linux Magazine
Home » Issues » 2024 » 287 » LXD-UI Container management made easier with LXD-UI © Photo by Fabian Quintero on Unsplash Author(s): LXC, a command-line manager for Linux containers, is quite tricky to use. Enter the LXD-UI web interface to make life easier. Linux Containers (LXC) is an operating-system-level virtualization method that uses containers that run in isolation from each other on a Linux system.
JStG II - Mitteilungspflicht für innerstaatliche Steuergestaltungen erneut ante portas?
Entwurf eines zweiten Jahressteuergesetzes 2024 bringt die Einführung der Mitteilungspflicht für nationale Steuergestaltungen wieder ins Spiel. Während das aktuelle Jahressteuergesetz-E 2024 auf die Stellungnahme des Bundesrats nach der Sommerpause wartet, hat das Bundesministerium der Finanzen (BMF) mit Bearbeitungsstand vom 10. Juli 2024 den Referentenentwurf eines zweiten Jahressteuergesetzes 2024 (JStG II) mit kurzer Frist zur Stellungnahme an die Verbände geschickt.
Causal Chat " Linux Magazine
You can imagine a chatbot as a kind of robot that talks to you. Underpinning the chatbot experience is software that can analyze language in text form and find an appropriate response. The technical term for this process is Natural Language Processing (NLP). In the past, NLP systems were completely rule-based. To be more precise, state machines were used to conduct the conversations. However, rule-based chatbots were extremely limited. They were only suitable for processing simple standard tasks.
Neue CMS Blogserie: Steuern in Krise und Insolvenz
Gerät ein Unternehmen in die Krise oder gar in die Insolvenz stellen sich vielfältige Themen, auch steuerliche. Unsere neue Blogserie gibt den Überblick. Unternehmen in der Krise haben häufig andere Sorgen als das Thema Steuern. Die steuerlichen Belange zu vernachlässigen kann aber sowohl vor wie auch in der Krise fatale Konsequenzen haben.
Fleet Flyer " Linux Magazine
In this article, I work with the DJI Ryze Tello drone, which is available on Amazon [1] and from other vendors for around $99 (£99/EUR100). Why this model? The drone was designed for educational use and has open interfaces for that purpose. In other words, you can develop programs for the drone in Scratch or Python. To familiarize yourself with the drone's capabilities, you first need to download the app that gives you manual control of the drone.
Looking to Build Long-Term Economic Resilience? Start with Your Commercial Relationships
Today’s economic outlook is more promising than at the start of 2023, but uncertainty lingers in the months ahead. J.P Morgan anticipates “a more challenging backdrop could develop,” while Deloitte’s forecast shows “the economy slowing substantially in the second half.” Companies are focused on business continuity and identifying opportunities to find new revenue streams, eliminate unnecessary costs, and mitigate risk in core operations.
Looking to Build Long-Term Economic Resilience? Start with Your Commercial Relationships
Today’s economic outlook is more promising than at the start of 2023, but uncertainty lingers in the months ahead. J.P Morgan anticipates “a more challenging backdrop could develop,” while Deloitte’s forecast shows “the economy slowing substantially in the second half.” Companies are focused on business continuity and identifying opportunities to find new revenue streams, eliminate unnecessary costs, and mitigate risk in core operations.
Belegung von Büroarbeitsplätzen ermitteln
Nach der Corona-Pandemie ist in vielen Unternehmen Shared Office das kostengünstige Gebot der Stunde. Mitarbeiter verbringen nur noch einen Teil ihrer Arbeitszeit im Büro. Doch ob im Office noch ein Platz frei ist, lässt sich nicht ohne weiteres ermitteln. Die Pandemie hat die Arbeitswelt in vielen Belangen massiv umgekrempelt. So entwickelte sich das hybride Arbeiten für viele Arbeitnehmer zur täglichen Routine.
Belegung von BÞroarbeitsplÃĪtzen ermitteln
Nach der Corona-Pandemie ist in vielen Unternehmen Shared Office das kostengÞnstige Gebot der Stunde. Mitarbeiter verbringen nur noch einen Teil ihrer Arbeitszeit im BÞro. Doch ob im Office noch ein Platz frei ist, lÃĪsst sich nicht ohne weiteres ermitteln. Die Pandemie hat die Arbeitswelt in vielen Belangen massiv umgekrempelt. So entwickelte sich das hybride Arbeiten fÞr viele Arbeitnehmer zur tÃĪglichen Routine.
Intelligentes Vertragsmanagement
Das vergangene Jahr hat die höchste Inflationsrate der jüngsten Vergangenheit zu verzeichnen. Die Preise für Rohstoffe, Energie (+43 Prozent) und Vorprodukte sind enorm gestiegen – eine große Herausforderung für nahezu alle Unternehmen der Fertigungsindustrie. Um der Unsicherheit zu begegnen, die sich aus diesem wirtschaftlichen Umfeld ergibt, müssen die Organisationen etliche Maßnahmen ergreifen.
Python-API unter Ubuntu aufsetzen
Mit dem auf Python basierenden Framework FastAPI setzen Sie im Handumdrehen eine maßgeschneiderte REST-Schnittstelle für Webanwendungen auf. Die Abkürzung API steht für den englischen Begriff Application Programming Interface. Dabei handelt es sich um Schnittstellen, die eine Applikation bereitstellt. Über diese Schnittstellen können Entwickler auf Funktionen der Anwendung zugreifen.
Microcontrollers for Beginners » Linux Magazine
© Lead Image © donatas1205, 123RF.com Author(s): The Nibble kit by CircuitMess is a freely programmable mobile game console that makes getting started with microcontroller programming a breeze. The Nibble kit by CircuitMess [1] comes with everything you need to build a portable game console. It even includes a soldering iron to solder the buttons. The lead-free solder included in the kit will easily last for several more projects.
Good Housekeeping » Linux Magazine
Clean code is a set of rules and procedures that make it easier to read and understand source code regardless of the programming language used. Many clean code strategies fit all languages, but some more far-reaching strategies only prove useful in the object-oriented world. The clean code concept is not new or revolutionary. Back in 2008, Robert C. Martin described the procedures in his book, Clean Code: A Handbook of Agile Software Craftsmanship [1].
Counting Pumpkins » Linux Magazine
Radio-frequency identification (RFID) tags have become indispensable in industry and government, as well as the wholesale and retail spaces. The inexpensive transponder chips can be found on clothing labels, identification cards, and credit cards. Armed with just a Raspberry Pi and an RFID kit, you can read the data from these chips and view it on a display. In this project, I read serial numbers from RFID tags stuck on 3D-printed pumpkins – a slightly different kind of detection task.
Pig Pen " Linux Magazine
For as long as the Raspberry Pi has been around, wiringPi has served as a library for accessing the GPIO. With the related gpio tool, programmers could quickly manage the GPIO at the command line. Many Raspberry Pi projects build on this library. Not least because of frustration about what were in part rude email communications from some users, developer Gordon Henderson decided to discontinue his one-man wiringPi project in August 2019 after releasing his last version.
Leveling the Game » Linux Magazine
© Lead Image © Uladzimir Kazhamiakin, 123RF.com Author(s): The small MPU6050 sensor contains a gyroscope and an accelerometer, which means that you can build a digital spirit level with it. To build a digital spirit level, you first need a sensor such as the MPU6050, which determines the position of an object in space. It has an accelerometer and a gyroscope for each axis in space and measures just 4x4 millimeters. For our test setup, we used a module to hold the semiconductor.
Assembler on Pi " Linux Magazine
© Lead Image © elenabsl, 123RF.com Author(s): Talk to your Raspberry Pi in its native assembler language. Assembler programs run directly on the computer's hardware, which means they can reach nearly the maximum achievable speed of execution. Because assembler program code is very low level, writing the code is more complicated, but it is still the best choice for some tasks, especially on a computer such as the Raspberry Pi with its limited resources.
Party Lights " Linux Magazine
Author(s): Martin Mohr The DMX protocol for controlling lighting technology has its roots in stage and event technology, but it can also be used in home automation. We show you how to control DMX devices with the Revolution Pi module. In principle, digital multiplex (DMX) technology lets you control all DMX devices through a simple and robust bus. DMX uses the RS-485 specification (i.e., asynchronous serial transfer) for data transmission.
Moderne CLM-Lösungen steigern Produktivität der Unternehmensanwendungen
Business-Anwendungen wie Dokumentenmanagement-Systeme (DMS), ERP, Customer Relationship Management (CRM), Supply Chain Management (SCM) und Human Capital Management (HCM) bilden heute die Basis vieler Geschäftsprozesse im Unternehmen. Dabei kann man jedoch ganz klar feststellen, dass all diese Lösungen eine gemeinsame Basis verbindet: die Verträge – mit Lieferanten, mit Kunden, mit Partnerunternehmen, mit Mitarbeitenden und natürlich auch mit den Eigentümern des Unternehmens.
Clean Power " Linux Magazine
Author(s): Martin Mohr Rechargeable lithium batteries are expensive, and manufacturing them damages the environment. Saltwater batteries offer a cheaper and greener approach to storing energy. The supply of lithium is finite, mining lithium pollutes the environment, and the batteries are expensive. None of this applies to saltwater batteries. Common household utensils are all you need to build one for yourself.
Colorful Lights " Linux Magazine
Author(s): Martin Mohr You are probably familiar with the large colored LED strips in many shop windows. Often these light strips use WS2812 RGB LEDs. Ready-made controllers are available, but they usually have a very limited feature set.
Crowdlending könnte für Startups bald teurer werden
Eine Crowdlending-Kampagne könnte sich für Gründer ab 2020 nicht mehr lohnen. Experten fürchten, dass die Portale dann ihre Gebühren erhöhen werden. Ein Beitrag von Martin Mohr, Rechtsanwalt und Steuerberater bei CMS Deutschland Crowdlending und Crowdinvesting sind eine zunehmend beliebte Form der Finanzierung von Startups und Projektideen. Private oder institutionelle Anleger investieren in Projekte und generieren im besten Fall Einkünfte daraus.
Close to Your Heart » Linux Magazine
Author(s): Martin Mohr A pulsemeter built with a Raspberry Pi, a digital-to-analog converter, and an optical sensor monitors your heart rate just as well as many far more expensive medical devices. Monitoring your pulse helps you determine the health of your vascular system. If you are interested in fitness, it is one of the vital metrics in sports monitoring.
Germany under pressure to amend position on taxable presence in foreign countries | Lexology
If an individual person or a company is active abroad in business, the question arises whether and to what extent such activity leads to a taxable presence in the relevant foreign country. The answer to this question generally depends on whether the business has a so-called permanent establishment ("PE") in that country.
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