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At nerdiy.de, everything revolves around electronics, DIY, 3D printing, smart home and many other technical topics.
The Arduino category lists all articles that deal with the construction, operation and programming of Arduino microcontrollers.
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 LEDs must first be inserted into the 3D [...].
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The ButtonBoard PCB is my attempt to kill several birds with one stone. On the one hand I was always looking for a universal and easy to program remote control [...]
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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. For this purpose on the PCB are [...]
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ESPEasy can now read out very many different sensors and / or control actuators (see also ESPEasy - Sensors & Actuators). With the help of the "Rules" can then locally on the ESP [...]
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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 uses a connected hose to suck up the [...]
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The 3D printed case of the "pxlDigits" was not intended to be "only" a 7-segment display with WLAN. Originally I made a kind of timer out of a two-digit 7-segment display for [...].
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For another project I urgently needed a relatively large digit to display a time duration. This small "sub-project" ultimately arose from this. Because with the 3D printed frame described here [...]
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There are some situations in which the connection of an LDR to an ESP makes sense. This is because it is relatively easy and for little money to adjust the brightness in a room [...].
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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. Thanks again for that 🙂 At the [...]
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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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I started developing the pxlBlcks because I was looking for a way to stay informed about events in the SmartHome. In the meantime there are two in [...]
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The adjustable dials differ from the type of LED matrix used. Unfortunately, this is because different matrix sizes allow or do not allow different displays. Nevertheless, to give you a small overview [...]
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Thanks to WiFi and thus (often) also Internet connection, an ESP8266 or ESP32 programmed with ESPEasy also has the possibility to display the time. For this to work, the call [...]
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I2C is the bus protocol or technology through which a microcontroller can communicate with many sensors or actuators. Thanks to the right software, you can also connect different microcontrollers with each other and [...].
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The actual flashing of firmware files like .bin files (also called "binarys") to the Wemos D1 Mini, the NodeMcu dev board or any other board based on the ESP8266 is done in the [...]
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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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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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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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The great/practical thing about the concept behind the Arduinos is that in many cases you can benefit from the work of others. It almost doesn't matter which sensor you read or [...]
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Especially in the open source world, sooner or later you will stumble across GitHub, GitLab or similar with "Git" in the name - when searching for program code. Behind this are various [...]
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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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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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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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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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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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Via the service of OpenWeatherMap.org you can get free weather data. To be able to access this service automatically - for example from NodeRed or from an Arduino [...]
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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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To make the series of Löffel articles a bit more complete I would like to explain in this article how to install programs and what to consider [...]
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