Another practical find during my forays through the electronic product world is the 433Mhz wireless wall switch. It can be easily integrated into NodeRed or any other SmartHome system using the RF Bridge. How [...]
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At nerdiy.de, everything revolves around electronics, DIY, 3D printing, smart home and many other technical topics.
All tips and articles incl. material lists around the topic Raspberry Pi.
Another practical find during my forays through the electronic product world is the 433Mhz wireless wall switch. It can be easily integrated into NodeRed or any other SmartHome system using the RF Bridge. How [...]
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"Out-of-theBox" the installed MagicMirror software does not start automatically after the RaspberryPi is booted. Therefore it is practical to set up an autostart for the MagicMirror software. How to do this is described in the following article. [...]
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For a long time I have been looking for a way how I can display the data I collect with NodeRed from my SmartHome comfortably on the MagicMirror. Thanks to the many plugins [...]
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As already mentioned in the article MagicMirror - Installation of the required software, the basic functionality of the MagicMirror software can be extended by various plugins. Where you can find these plugins and how you can use them [...]
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I must admit that I haven't found a real use for this feature yet, but I'm sure someone will get some use out of it someday. In this article, [...]
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I must admit I have not yet found the perfect solution to list all SmartHome-relevant articles clearly. Until then, to bring at least some overview into the available SmartHome articles comes [...]
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In addition to the data from your SmartHome, you can also display data about the server on which NodeRed is running. How to view the uptime (i.e. the running time) of your Raspberry Pi in the dashboard [...]
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An important event that your SmartHome should be able to react to is the presence status of the residents. For example, you can turn off lamps when you are absent or turn on radiators when you are present.
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Besides the exciting data that a SmartHome generates, you should also care a little about the status of the heart of the SmartHome. Do you have your NodeRed installation on a RaspberrypPi(or other [...]
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If you have a FritzBox in your home in addition to a RaspberryPi with NodeRed, the following article could be of interest to you. This explains how you […]
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The following article explains how you can display information about your Internet connection. The current Internet IP address is retrieved every hour and a speed test is carried out, which shows you the download [...]
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With the package "espeak" you can use the RaspberryPi to read out texts - and even whole files. How this works and what you have to consider [...]
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The more you get into all this IT/software/progammy stuff the quicker you'll find that the possibilities of related automation make you terribly lazy. One of those moments in [...]
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I recently had the problem that my MagicMirror stopped working properly after two days at the latest. For some reason, the screen stayed black and it was also on the [...]
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In the article NodeRed - User login setup it was already pointed out that it is very important to secure the access to your NodeRed configuration interface. Especially when you access your [...]
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After the first installation of NodeRed you can(/should) normally access the configuration interface of NodeRed without major obstacles. This is convenient because you can start directly with the configuration. [...]
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NodeRed is in my opinion one of the most intuitive graphical programming tools in the SmartHome/IoT area. In NodeRed, program sequences are not (only) executed with program code, but for the most part with function blocks (nodes) that are combined with each other and [...]...
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By default, SSH access is disabled on a RaspberryPi. So if you start a fresh RaspberryPi for the first time or you have reinstalled the operating system, the login is disabled.
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This article describes how you can execute commands from NodeRed on a remote Linux system and thus be able to reboot another system [...].
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The great thing about NodeRed, apart from the simple programming, is that there are all kinds of plugins (called "nodes" in NodeRed) with which the range of functions of NodeRed can be extended. A list of the [...]
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Depending on how you configure your Node-Red installation, it can be handy that it tells you when Node-Red is restarted. For example, you will be notified about crashes and [...]
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In the article about the 433Mhz mini pushbutton, I had already reported on my forays through the wonders of the electronic product world. In the process, not only the 433Mhz wireless wall switch, 433Mhz mini push button [...]
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Thanks to a technical trick and a suitable script, you can use the RaspberryPi - without additional hardware (apart from a piece of wire) - to send audio files and even whole texts via FM signal [...]
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In the articles RaspberryPi - Installing Speech Output with eSpeak and RaspberryPi - Sending FM Signals via GPIO Pin it is described how to use the RaspberryPi to read out texts and send FM signals [...].
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One of the weak points of a SmartHome system that you only really become aware of when something goes wrong is "energy". All the sensors, actuators and the controlling intelligence behind them are now running [...]
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Especially if your RaspberryPi is running in standby most of the day it makes sense to give it other tasks than the one it was originally designed for. So is [...]
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There are a few cases in the life of a RaspberryPi owner where it can be useful to display the last bootlog of the RaspberryPi. The bootlog is basically the - much more detailed - [...]
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Another great feature of NodeRed is that the complete - or individual parts of the configuration - can be exported formatted as a JSON string. JSON strings are strings in which configurations [...].
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To give your RaspberryPi a personal touch, there are now all sorts of possibilities. From self-designed and then 3D-printed cases to self-soldered expansion boards, there is actually almost nothing [...]
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Especially in rooms where a lot of water or water vapor is "worked", you should always ventilate sufficiently to avoid damage and health hazards caused by mold. If you are one of the [...]
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