You need power supplies in almost every project, because somewhere the energy for your project must come from 🙂 There are a few things to consider. On the one hand, you want to [...]
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Category: Electronics
HowTo: Node Red – Control Facebook(*) lamp
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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HowTo: Node Red – Supply Nerdiys PanelMeter with weather data
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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HowTo: ESP Easy – Install and configure NerdiysPanelMeter plugin
In the article Retro-SmartHome-Display via Analog-Anzeigen selber bauen the assembly of an own Retro-SmartHome-Display was explained. But unfortunately even the best hardware is nothing without the right software. So you can use the [...]
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HowTo: ESPEasy – Execute commands and actions via HTTP, MQTT, UDP and directly
One thing that makes ESPEasy so practical and universal is the possibility to read and control different sensors and actuators via commands. Especially in combination with corresponding rules, [...]
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HowTo: ESPEasy – Compile firmware, flash and configure WLAN access data
In addition to many important hardware components, each project also consists of the appropriate software. It is often less time-consuming to assemble the project than to write the appropriate software later. These [...]
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HowTo: Electronics - My friend the soldering iron
Even as a part-time nerd, you can't really get around the soldering iron in the long run. At the latest, when the first test circuit on the plug-in board has worked well and you want to take the next circuit-evolutionary step [...]
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Anyone who has already read the article Electronics – My friend the soldering iron may have. realized that there is actually quite a lot to write about this topic. And it is only […]
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HowTo: Electronics - The functions of a multimeter (use for troubleshooting)
Voltmeters, ammeters, ohmmeters or as a “compact device” = multimeter are the ultimate lifesaver or at least a good mood saver when the circuit you built yourself doesn’t work. Sometimes it just happens that even though you [...]
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HowTo: Electronics – soldering SMD components by hand
After soldering THT components, soldering SMD components is to a certain extent the supreme discipline among the soldering challenges. The difficulty increases as the size of the components decreases. SMD stands for "Surface [...]
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HowTo: Electronics - Commissioning a new circuit
After the last component of a kit or the first prototype of your own circuit is finished, you are often excited and impatient. Sometimes at this point you have two, three or [...]
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Image collection: Tasmota - Building a world map lamp
This article actually contains more a colorful collection of creation photos from the time before Nerdiy.de. At that time I built a world map lamp as a decoration for the then still quite bare living room wall. [...]
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HowTo: ESP8266 – Remove/Disable LED
The ESP8266 has become in recent years more and more the universal forest-and-meadow microcontroller that you can use in almost any project. A microcontroller for ~2€ including WLAN and with [...]
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HowTo: Tasmota – flash firmware
Besides the hardware, the right software for your project is of course just as important. A practical and universally applicable firmware for the forest-and-meadow microcontroller ESP8266 is the Tasmota firmware. With it you can [...]
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HowTo: Tasmota - Build Retro Light Bulb Smart Home Lamp
As in the retro speaker project, it is a little hobby of mine to give old things a new use. If you can also improve the old technology and for example [...]
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HowTo: TDA7492/CSR8635 - DIY Bluetooth Retro Speaker Build
Sometime last year I stumbled across the very inexpensive TDA7492-CSR8635 Bluetooth amplifier boards on Ebay. These include a Bluetooth audio receiver and a stereo amplifier that can drive speaker cabinets up to 50 watts. [...]
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HowTo: TDA7492/CSR8635 – External antenna mod to improve reception
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. [...]
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HowTo: Node Red / Tasmota – Build a Facebook(*) Icon Lamp
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 [...].
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HowTo: Node Red / Tasmota – Build an Instagram(*) Icon Lamp
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 [...]
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HowTo: NodeRed / Tasmota – Build a WhatsApp(*) icon lamp
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 [… ]
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HowTo: Build your own retro SmartHome display via analogue displays
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 [...].
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HowTo: Tasmota – Build a SmartHome firefly lamp yourself
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 [...]
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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 – WS2812 light chain to build yourself
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 [...]
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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 outlet that I have [...]
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HowTo: Tasmota - "Lampy" build the lamp yourself
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 [...]
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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: Ardunio – Use the serial port
Normally every Arduino board is programmed via the serial interface. However, not only the program code can be transferred to the Arduino. It can also be used to send control commands to the Arduino [...].
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ArduinoIDE - Tips and Tricks
The ArdunioIDE is - compared to other development environments - very simple. There are not many things that can be set or adjusted. This has the advantage that beginners or [...]
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HowTo: Electronics – Solder THT components by hand
The soldering of THT components (THT=Through Hole Technology="through-hole assembly") is one of the basics you need to build kits, prototypes and the like. This is because many electronic components, especially ICs, are still [...]
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