Home Automation II – Programming your own devices with ESPHome
Die Qual der Wahl – welche Firmware für die eigenen Nodes? IoT-Geräte sind seit nun schon einigen Jahren in aller Munde. In der DIY-Szene angekommen sind sie aber spätestens mit dem Aufkommen der ESP8266, des ESP32 und der guten Integration in das Arduino-Ökosystem. Nun kann man mit einfachsten Mitteln seine Geräte internettauglich machen. Mittlerweile gibt […]
Retro Feeling: the GPI Case from Retroflag
Retroflag has reworked what is probably the best known handheld game console from back then with the latest technology. In this how-to we will guide you step by step in the construction of a retro game console, starting with the assembly up to the installation of the games. GPI Bundle The Retroflag’s GPI case bundle* […]
Home Automation I – Getting started with the Home Assistant software
Just another smart home standard? The last years have been very eventful for home automation. Everyone is talking about IoT and many manufacturers offer solutions for it. After the initial enthusiasm, however, disillusionment usually follows: there are an infinite number of standards and solutions, many are managed in a cloud and often products become useless […]
Display Individual Texts, Images and videos on LED matrices with the Raspberry Pi
LED matrices offer very special options for displaying photos, letters, electronic tickers, pictures and even videos. They are a real eye-catcher in the living room at home, as well as in shop on advertising displays or at trade fairs. For even more design freedom, several boards can be interconnected so that an LED wall is […]
Building an IoT key safe box
“The measuring instrument is in the drawer of my colleague, but he is ill – we can’t reach it today” (drawer locked) or “Then I have to bring you the key to the second room in the holiday home tomorrow” are two sentences that initiated the project presented here. In our daily world, simple keys, […]
Application notes for the coating thickness gauge UT343D
1. Introduction The UT343D is a portable, highly accurate coating thickness gauge that can measure the thickness of coatings on both ferrous and non-ferrous metals. This instrument has high-precision and non-destructive measurement functions, as well as a single-point and multi-point averaging algorithm and a fast output of the measurement result for evaluation. It can therefore […]
Sensor database on the Raspberry Pi
Anyone who wants to record sensor data over a long period of time is inevitably faced with a problem: How can the collected data be stored and presented?InfluxDB and Grafana are actually tools designed for monitoring large servers, networks and websites. This tutorial explains how this combination can be used to visualize sensor data at […]
Desk, headset, VPN – what you need for the home office and digital conferences
The subject of home offices has been gaining in importance for several years. With growing global mobility, it is becoming more and more common for employees to work from home or their current location rather than from the office. However, there may be other reasons for preferring the home office. In Germany, around five percent […]
Low cost video surveillance with an IP camera surveillance system
The use of video surveillance with cameras in Germany is on the rise, as more and more homeowners and shopkeepers want to protect their belongings. Unfortunately, professional solutions are often very expensive and overloaded with extra functions that are usually not used at all. In the following we will present a monitoring system from MEGASAT […]
Remote controlled digital picture frame with the Raspberry Pi
Digital picture frames are among the most popular Raspberry Pi projects. In this How-To we show you how you can do this comfortably and without much programming effort with the free iOS and Android App of the Frankfurt startup FRAMEN. The project Suitable for: Beginners with basic knowledge Time required: approx. 1 hour plus individual […]
