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At nerdiy.de, everything revolves around electronics, DIY, 3D printing, smart home and many other technical topics.
In the category Node Red you can find all articles about Node Red. The configuration, operation and examples are described there.
I started documenting the pxlBlcks (which I had been putting off for a long time) in November 2020 after Hackaday.com announced the "GoodBye 2020" challenge. (More info here: https://hackaday.io/contest/175608-goodbye-2020/details) I had used [...]
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The pxlBlck_SlotClock consists of a 1×60 LED matrix. So it can display the time according to the same scheme as an analog clock. The colors of the individual hands can be adjusted. [...]
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In recent weeks, I have often had the problem that my freezer door did not close properly. This resulted in at least one night when the refrigerator door did not close for almost seven hours [...]
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The PCA9685 is a PWM port expander. With this it is possible to connect up to 16 LEDs, servos or other components to your ESP8266 and supply them with a PWM signal. Thanks to [...]
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From the FritzBox I am used to being notified as soon as someone logs on to my FritzBox. I think this is a great security feature. At some point I thought that it [...]
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I recently ordered one of the DECT radiator thermostats for the FritzBox out of curiosity. As usual with the Fritz products, installation and commissioning was super easy. For attachment and setup [...]
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It doesn't happen often, but sometimes a reboot of the FritzBox helps to fix problems in the network or with the internet connection. To restart the FritzBox there are [...]
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Recently I had a problem with NodeRed that causes the NodeRed process to crash sometimes. This is not a big deal since it restarts automatically. On the [...]
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That with the help of NodeRed almost all Linux commands can be executed is known by now. What makes the whole thing particularly practical, however, is that you can then also process the [...]
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Another practical thing in NodeRed is that you can also easily trigger common Linux commands via NodeRed node.
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For some time now I have had the problem that my "node-red-contrib-fritz" node cannot establish a connection to my FritzBox. Nothing had actually changed in the overall configuration. Nothing except [...]
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I recently stumbled across the VL53L0X and VL53L1X TOF distance sensors. These sensors can determine distances with millimeter accuracy using a laser. Thereby they have a range of up to 4 m [...]
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In the article NodeRed/Tasmota - Building a Facebook(*) Icon Lamp is explained how you can build your own Facebook(*) lamp. The goal is to link this later with your SmartHome and for example [...]
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In the articles Retro-SmartHome-Display via Analog-Anzeigen selber bauen and ESPEasy - NerdiysPanelMeter-Plugin installieren und konfigurieren we described what you have to do to build your own Retro-SmartHome-Display. If nu everything [...]
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In the article NodeRed/Tasmota - Building a WhatsApp(*) icon lamp is explained how you can build your own WhatsApp(*) lamp. The goal is to link this later with your SmartHome and for example [...]
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The article NodeRed/Tasmota - Building an Instagram(*) Icon Lamp explains how you can build your own Instagram(*) lamp. The goal is to link this later with your SmartHome and for example [...]
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I don't know if dashboards are THE (one) means to make a nerd's heart beat faster, but certainly they are a means to make a nerd's heart beat faster [...]
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In addition to caller ID, you can also display the caller log of the Fritzbox in NodeRed. How to do this is explained in the following article. Prerequisites Helpful articles:To apply this configuration [...]
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I must admit I've never seen them before, but there are supposed to be so-called dead man's switches on trains. These switches with the somewhat macabre name are a whole sensible invention. [...]
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In the two articles Sonoff 433Mhz RF Bridge with Tasmota Firmware flashing and Tasmota - Sonoff 433Mhz RF Bridge configuring and sockets teaching is explained how to configure the Sonoff RF Bridge to the [...]
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You don't always have the possibility to measure environmental data such as the outside temperature directly. Nevertheless, sometimes it is practical. For example, you can make sure that the radiators inside [...]
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E-mails are (I believe) one of the oldest means of communication on the Internet. In the smart home sector, however, they do not play a major role. Push services - such as [...] - are often preferred for fast and direct data exchange.
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If you have installed an IP camera in your network - or elsewhere - you can also display the camera image in the dashboard of NodeRed. How this works [...]
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Non-tech-savvy flatmates in particular are usually skeptical about this whole SmartHome thing. People are constantly asking questions like "But why do you need that?" or "And it's so important that [...]
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You can swear about Apple devices or idolize them, but what Apple has done very well is to integrate SmartHome components into their operating systems. Thus, iOs inherently brings a [...]
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In the article about the 433Mhz mini-button I had already reported on my forays through the wonders of the electronic product world. In the process, I also noticed a 433Mhz SOS button, which probably [...]
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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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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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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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