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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Category: Evening project(<2h)
The evening projects category contains all projects from Nerdiy.de that require a maximum of two hours to implement.
HowTo: Magic Mirror – set up autostart
"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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HowTo: Magic Mirror – Install 3rd party modules
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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HowTo: Node Red – Display W-Lan networks in the area
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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Build your own OpenSource SmartHome
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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HowTo: Tasmota – Configure Sonoff 433Mhz RF-Bridge and teach sockets
After you have flashed the Sonoff RF Bridge with the Tasmota firmware - as described in the article Flashing Sonoff 433Mhz RF Bridge with Tasmota Firmware - it is now time to [...]
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HowTo: Node Red – Display server uptime in the dashboard
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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HowTo: Node Red / FritzBox – presence detection with the FritzBox
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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HowTo: Node Red – Display Raspberry Pi's system data on the dashboard
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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HowTo: Node Red / FritzBox – Show call notification
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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HowTo: Node Red – Show internet connection information in the dashboard
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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HowTo: Raspberry Pi – Install speech output with eSpeak
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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HowTo: Raspberry Pi – Login via SSH without password query
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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HowTo: Raspberry Pi – Set up an automatic daily restart
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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HowTo: Determine latitude and longitude of any position with GoogleMaps
There are a few cases where you need to find out the geographic coordinates of a certain place. For example, to be able to calculate exact sunrise and sunset times at a certain location. [...]
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HowTo: Sonoff – Flash 433Mhz RF Bridge with Tasmota Firmware
The Sonoff 433Mhz RF-Bridge is an inexpensive way to control devices that communicate with each other via the radio frequency 433Mhz. In principle it is - as the name suggests - a [...]
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HowTo: Tasmota – Flash Sonoff S26 socket with Tasmota firmware
When looking for inexpensive WLAN sockets to control normal consumers, sooner or later you stumble across the "Sonoff S26". This is one of (if not the) cheapest WLAN socket that I [...]
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HowTo: Node Red – Encrypt connection
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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HowTo: Node Red – Set up user login
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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HowTo: Raspberry Pi – Set SSH and WiFi before the first boot process
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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HowTo: Node Red – Reboot, Shutdown and Boot Remote Raspberry Pi
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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HowTo: Node Red – Install new nodes
Das tolle an NodeRed ist neben der einfachen Programmierung, dass es allerhand Plugins (In NodeRed „nodes“ genannt) gibt mit denen sich der Funktionsumfang von NodeRed erweitern lässt. Eine Liste der […]
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HowTo: Node Red – Execute Action at ServerStart
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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HowTo: Node Red – Integrate 433Mhz window contact
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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HowTo: Tasmota – Flash Sonoff RF Bridge RF-Chip(EFM8BB1) with Portisch firmware
Thanks to the very universal Tasmota firmware (Sonoff 433Mhz Rf Bridge with Tasmota firmware flashing) you can send and receive pretty much any 433Mhz signal using the Sonoff RF Bridge. However, this works [...]
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HowTo: Raspberry Pi – Output voice output via FM signal
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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HowTo: Node Red - Read UPS status
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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HowTo: Node Red – Integrate 433Mhz mini button
On my (almost daily) forays through the wonders of the electronic product world, I recently came across this little guy: A roughly two-euro piece of 433Mhz wireless pushbutton, which is powered by a [...]
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HowTo: Raspberry Pi – Display Bootlog
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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HowTo: Node Red – Import and Export Node Code / Flows
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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