So that my MagicMirror is only switched on when I actually use it, I have configured a small automation using NodeRed. The screen is only switched on if movement is […]
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Category: Raspberry Pi
All tips and articles including material lists on the subject of Raspberry Pi.
HowTo: Node Red – Control Spotify via NodeRed
What I really appreciate about Spotify is the good connectivity. You can play or control music or podcasts on another device with just a few clicks. Thanks to the free […]
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HowTo: Electronics – Build seven segment LED digit called “pxlDigit” from WS2812 LEDs
For another project I urgently needed a relatively large number to indicate a duration. From this this small “sub-project” emerged. Because with the 3D printed frame described here and a […]
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HowTo: Node Red – Fridge door monitoring by fridge energy consumption
In the past few weeks I’ve had the problem that my freezer door didn’t close properly. As a result, at least one night, the refrigerator door was not properly closed […]
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How To: Raspberry Pi – Configure audio output
The RaspberryPi can be equipped with a speaker in various ways. The easiest way is the connection via the 3.5mm jack plug. There is also the option of having the […]
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HowTo: Raspberry Pi – Use a Raspberry Pi with “Raspotify” as a Spotify speaker
In the article RaspberryPi – Install “Shairport” Airplay-server on the RaspberryPi, I described how you can easily expand your RaspberryPi with the function of an AirPlay speaker. Thanks to another […]
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HowTo: Raspberry Pi – Install “Shairport” Airplay server on the Raspberry Pi
Anyone who uses one (or more) Apple devices is certainly familiar with the AirPlay function. Thanks to this, media of all kinds can be streamed to other devices in the […]
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HowTo: Node Red – Pushbullet notification at SSH login
From the FritzBox I am used to being notified as soon as someone logs on to my FritzBox. I think that’s a great security feature. At some point I thought […]
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HowTo: Tasmota – Flash Tasmota firmware using Tuya-Convert
Flashing devices with the ESP8266 is already described in the article ESP8266 – Flashing .bin files under Windows with the “Esptool”. But many ready-made SmartHome devices such as various sockets […]
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HowTo: Node Red – Control FritzBox thermostat via Node Red
I recently ordered one of the DECT radiator thermostats for the FritzBox out of curiosity. As usual with Fritz products, installation and commissioning were super easy. You don’t even need […]
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HowTo: Node Red – Restart FritzBox via NodeRed Dashboard
It doesn’t happen often, but sometimes restarting the FritzBox helps to fix problems in the network or with the internet connection. There are different ways to restart the FritzBox. You […]
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HowTo: Electronics – nanoPxl V1.1 soldering SMD components
I am currently working on the first preparations for a somewhat larger project. For this I need LEDs which shine a little brighter. At the same time, I didn’t want […]
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HowTo: Node Red – Automatic saving of the Node Red journal after starting Node Red (for debugging purposes)
I recently had a problem with NodeRed that caused the NodeRed process to crash sometimes. Not really that bad because it is restarted automatically. On the other hand, it annoyed […]
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HowTo: Node Red – View Linux login history
It is known that almost all Linux commands can be executed with the help of NodeRed. What makes the whole thing particularly practical, however, is that you can then also […]
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HowTo: Raspberry Pi – Rotate screen output
Especially if you have connected an external screen, it can happen that you are faced with the problem of wanting to rotate the screen output. A typical use case is, […]
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HowTo: Node Red – Shut down and restart Raspberry Pi
Eine weitere praktische Sache in NodeRed ist, dass man auch übliche Linux Befehle bequem per NodeRed-Node auslösen kann.
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HowTo: FritzBox – Fix the “TypeError: Cannot read property ‘actions’ of ‘undefined'” error in the “node-red-contrib-fritz” node
For some time now I have had the problem that my “node-red-contrib-fritz” node cannot connect to my FritzBox. What confused me: Nothing really changed in the entire configuration before the […]
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HowTo: ESPEasy – Connect VL53L0X / VL53L1X distance sensor to the ESP8266 / ESP32 and read its data
I recently stumbled across the VL53L0X and VL53L1X TOF distance sensors. These sensors can determine distances with millimeter accuracy using a laser. In addition, they have a range of up […]
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HowTo: GitHub – How to copy files from a git-repository to my computer
Especially in the open source world you will sooner or later stumble on GitHub, GitLab or similar online-services with “Git” in the name – in search of program code. Behind […]
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HowTo: FHEM – Structure, Modules & Worth Knowing
After installing FHEM for the first time and the configuration page was reachable, the euphoria was great. After I had clicked on it a bit, this euphoria was quickly replaced […]
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How To: Node Red / FritzBox – View Caller List in Dashboard
In addition to the caller ID, you can also view the caller log of the Fritzbox in NodeRed. How to do this is explained in the following article. Requirements Helpful […]
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How To: Node Red / Tasmota – A “deadman switch” or how to use the absence of status messages as an event
I have to admit I’ve never seen them before, but there are supposed to be so-called dead-man switches on trains. These switches with the somewhat macabre name are a whole […]
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HowTo: Node Red – Embed and use Sonoff 433Mhz RF Bridge
The articles Tasmota – Configuring the Sonoff 433Mhz RF Bridge and teaching Sockets and Sonoff – 433Mhz RF Bridge flashing Tasmota firmware explain how to prepare the Sonoff RF Bridge […]
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How To: Node Red – Get current weather data from OpenWeatherMap
It is not always possible to directly measure environmental data such as the outside temperature. Nevertheless, it is sometimes practical. For example, you can make sure that the radiators inside […]
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HowTo: Node Red – Send E-Mail on Events
(I think) E-mails are one of the oldest ways to communicate on the Internet. By contrast, they do not play a major role in the smart home sector. For fast […]
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How To: Node Red – View IP Cam Images in Dashboard
If you have installed an IP camera in your network – or elsewhere – you can also have the camera image displayed in the dashboard of NodeRed. How to do […]
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HowTo: Raspberry Pi – Control the Raspberry Pi via VNC
In addition to SSH you can also control the RaspberryPi via the VNC protocol. In doing so, you access the graphical user interface. And so you can “bring” the graphical […]
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HowTo: Raspberry Pi – “SSH is not responding” or “is very slow” issue-fix
Recently, after reinstalling Raspian on the RaspberryPi, I had the problem that SSH access was painfully slow. Mostly you could enter the user name and the password still “normal fast”, […]
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HowTo: Magic Mirror – Display current traffic overview
A cool and usefull plugin for the MagicMirror is the plugin “MMM-GoogleMapsTraffic”. This will show you the status of the current road traffic in your area. How to install this […]
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HowTo: Node Red – Set up a “welcome-boost” for the heater on entering the apartment
Especially non-technology enthusiastic roommates are usually skeptical about this whole SmartHome thing. Constantly questions such as “But why do you need that?” or “And that’s so important now that it […]
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