Blog - Page 7 of 9 - nerdiy.de - DIY, electronics, 3D printing and more...

HowTo: MagicMirror - Build your own MagicMirror

November 21, 2023 Fab

When I moved into a new apartment, I was faced with a new (absolutely luxury) problem. My old MagicMirror, which I had previously installed in my bathroom cabinet [...]
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HowTo: Anemosens - Building a 3D printed anemometer (wind sensor)

February 9, 2022 Fab

To be honest, the idea of a 3D printable wind sensor ("anemometer" in technical jargon) has been floating around in my head for quite a long time. Initially, I could have used it as a [...]
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HowTo: PCB - Build ButtonBoard PCB V1.2

November 23 2021 Fab

The ButtonBoard PCB is my attempt to kill several birds with one stone. On the one hand, I was always looking for a universal [...]
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HowTo: PCB - Anemosens_MCU PCB assembly

October 11, 2021 Fab

With the Aenmosens_MCU board, it is possible to use Anemosens as a stand-alone anemometer that can be used for long-term observations in remote areas (hence the microSD card slot) or as another part [...]
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HowTo: PCB - Building the Anemosens Sensor PCB

October 10, 2021 Fab

The Anemosens sensor PCB is the basis for the sensor setup of Anemosens a 3D printed anemometer that I developed for the second version of WinDIY. [...]
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HowTo: PCB - Building the pxlDigit_PCB

October 7, 2021 Fab

The idea for the pxlDigit_PCB came to me during the construction of the pxlDigit (article here: https://nerdiy.de/howto-elektronik-sieben-segment-ziffer-pxldigit-aus-ws2812-leds-bauen/). There the pxlDigit is built from single WS2812 LED segments. For this the [...]
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HowTo: PCB - pxlBlck_multiPCB

September 26, 2021 Fab

One of my past PCB projects is the "pxlBlck_multiPCB". As the name suggests this PCB is the heart of several future pxlBlck variants. So far I have used as [...]
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HowTo: pxlBlck - build pxlBlck_CassetteLamp

March 13, 2021 Fab

Meanwhile, MP3 players, smartphones and USB sticks with 128GB and more memory are part of everyday life. Storing and transporting music is therefore easier than ever [...]
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HowTo: 3D Printing - Building a servo controlled 125mm butterfly valve

February 7, 2021 Fab

I recently built an exhaust system for my soldering station and the chamber of my 3D printer. The built exhaust system has two connections. One sucks [...]
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HowTo: Electronics - Building a seven-segment digit "pxlDigit" from WS2812 LEDs

January 9, 2021 Fab

For another project, I urgently needed a relatively large number to display a time duration. This ultimately resulted in this small "sub-project". Because with the [...]
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HowTo: pxlBlck - Display relative values as BarGraph

December 28, 2020 Fab

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 on this [...]
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HowTo: pxlBlck - Building the pxlBlck_RingClock

December 18, 2020 Fab

The pxlBlck_RingClock is very similar to the pxlBlck_SlotClock. It is also built using a 1×60 LED matrix and can display the time according to the same scheme as the [...]
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HowTo: pxlBlck - build pxlBlck_8x8

December 13, 2020 Fab

The pxlBlck_8x8 was one of the first members of the pxlBlck family. Thanks to the few parts and the prefabricated WS2812 8×8 LED matrix it is quite fast to build and [...]
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HowTo: pxlBlck - build pxlBlck_Pot

December 12, 2020 Fab

The idea for the pxlBlck_Pot is strongly inspired by a design that Lukas (@i_am_lukas) had created. He agreed to let me take over his design. Many [...]
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HowTo: pxlBlck - build pxlBlck_SlotClock

December 12, 2020 Fab

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 [...]
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pxlBlck - An IOT/SmartHome Information System

December 12, 2020 Fab

pxlBlck is a system of hardware and software to build an information system for the SmartHome. Various software and hardware options are available. Thanks to the [...]
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HowTo: Electronics - nanoPxl V1.1 SMD components soldering

October 16, 2020 Fab

Currently I am working on the first preparations of a somewhat larger project. For this I need LEDs which shine a little brighter. At the same time I did not want [...]
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WinDIY - The wind turbine from the 3D printer

October 6, 2020 Fab

On a camping trip away from modern infrastructure, one quickly notices how much one has actually become accustomed to the fact that electricity is always and everywhere somehow [...]
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HowTo: ESPEasy / Wemos D1 Mini - Adapt ADC to a different maximum voltage

May 29, 2020 Fab

With the help of the ADC on the ESP8266 you can measure voltages. This is useful for example to measure a battery voltage and thus the charge state of the battery or [...]
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HowTo: Magic Mirror – set up autostart

Posted on 28. February 2019 by Fab

The installed MagicMirror software does not start automatically "out-of-the-box" after the RaspberryPi has booted up. It is therefore practical to set up an autostart for the MagicMirror software. How to do this is described in the following article. [...]

HowTo: Node Red / Magic Mirror – Display data from Node Red on the mirror

Posted on 28. February 2019 by Fab

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 [...]

HowTo: Magic Mirror – Install 3rd party modules

Posted on 28. February 2019 by Fab

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 [...]

HowTo: Node Red – Display W-Lan networks in the area

Posted on 28. February 2019 by Fab

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, [...]

HowTo: TDA7492/CSR8635 – External antenna mod to improve reception

Posted on 28. February 2019 by Fab

After the Bluetooth retro speaker was in use for a few days, I noticed relatively quickly that the integrated antenna had a somewhat modest radio range. Most of the time it was over after about 2m as the crow flies. [...]

Build your own OpenSource SmartHome

Posted on 28. February 2019 by Fab

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 [...]

HowTo: Tasmota – Configure Sonoff 433Mhz RF-Bridge and teach sockets

Posted on 28. February 2019 by Fab

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 [...]

HowTo: Node Red – Display server uptime in the dashboard

Posted on 27. February 2019 by Fab

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 [...]

HowTo: Node Red / FritzBox – presence detection with the FritzBox

Posted on 27. February 2019 by Fab

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.

HowTo: Node Red – Display Raspberry Pi's system data on the dashboard

Posted on 27. February 2019 by Fab

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 [...]

HowTo: Node Red / FritzBox – Show call notification

Posted on 27. February 2019 by Fab

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 […]

HowTo: Node Red – Show internet connection information in the dashboard

Posted on 27. February 2019 by Fab

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 [...]

HowTo: Node Red / Tasmota – Build a Facebook(*) Icon Lamp

Posted on 27. February 2019 by Fab

After I recently found a way to forward notifications from my cell phone to my SmartHome, I have now thought about a few ways to use this in a "meaningful" way [...].

HowTo: Node Red / Tasmota – Build an Instagram(*) Icon Lamp

Posted on 27. February 2019 by Fab

In the article NodeRed/Tasmota - Building a Facebook Icon Lamp I described why I think a Facebook lamp is a useful thing if you want to reliably inform yourself about Facebook notifications. Unfortunately/God [...]

HowTo: NodeRed / Tasmota – Build a WhatsApp(*) icon lamp

Posted on 27. February 2019 by Fab

In the articles “NodeRed/Tasmota – Building a Facebook Icon Lamp” and “NodeRed/Tasmota – Building an Instagram Icon Lamp” I described why these lamps can be quite useful if you want to keep up with [… ]

HowTo: Build your own retro SmartHome display via analogue displays

Posted on 27. February 2019 by Fab

Recently, while cleaning out the basement, I found an old control panel with old analog displays. This gave me the idea that you have to be able to use these displays somehow [...].

HowTo: Tasmota – Build a SmartHome firefly lamp yourself

Posted on 27. February 2019 by Fab

The other day I found the canning jar pictured below on the shelves of a large Swedish furniture store. Preserving jars are not an invention from Sweden. I would almost argue that they are somewhere in every [...]

HowTo: Raspberry Pi – Install speech output with eSpeak

Posted on 27. February 2019 by Fab

You can also use the RaspberryPi with the “espeak” package to read texts – and even entire files – to you. How it works and what you should pay attention to [...]

HowTo: Raspberry Pi – Login via SSH without password query

Posted on 27. February 2019 by Fab

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 [...]

HowTo: Raspberry Pi – Set up an automatic daily restart

Posted on 27. February 2019 by Fab

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 [...]

HowTo: Determine latitude and longitude of any position with GoogleMaps

Posted on 27. February 2019 by Fab

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. [...]

HowTo: Sonoff – Flash 433Mhz RF Bridge with Tasmota Firmware

Posted on 27. February 2019 by Fab

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 [...]

HowTo: Tasmota – WS2812 light chain to build yourself

Posted on 27. February 2019 by Fab

From the construction of the world map lamp I still had a few plastic lamp housings over. These lay long lonely on the shelf around, until I came to the idea of a small RGB light chain with [...]

HowTo: Tasmota – Flash Sonoff S26 socket with Tasmota firmware

Posted on 26. February 2019 by Fab

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 outlet that I have [...]

HowTo: Node Red – Encrypt connection

Posted on 26. February 2019 by Fab

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 [...]

HowTo: Node Red – Set up user login

Posted on 26. February 2019 by Fab

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. [...]

HowTo: Tasmota - "Lampy" build the lamp yourself

Posted on 26. February 2019 by Fab

Lamps that can be integrated into your own SmartHome system currently come with steep prices. Some smart lamps cost 100 euros and more. In my opinion, these [...]

HowTo: Node Red – Installing Node Red on the Raspberry Pi

Posted on 24. February 2019 by Fab

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 [...]...

HowTo: Raspberry Pi – Set SSH and WiFi before the first boot process

Posted on 24. February 2019 by Fab

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.

HowTo: Node Red – Reboot, Shutdown and Boot Remote Raspberry Pi

Posted on 23. February 2019 by Fab

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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