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Nerdiy.de is about electronics, DIY, 3D printing, smart home and a lot of other technical topics.
The Arduino category lists all articles that deal with the construction, operation and programming of Arduino microcontrollers.
I got the idea for the pxlDigit_PCB while building the pxlDigit (article here: https://nerdiy.de/howto-elektronik-seven-segment-digit-pxldigit-aus-ws2812-leds-bauen/). There the pxlDigit is made up of individual WS2812 LED segments. To do this, the LEDs […]
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The ButtonBoard PCB is my attempt to kill several birds with one stone. On the one hand, I’ve always been looking for a universal and easy-to-program remote control for the […]
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The Anemosens sensor PCB is the basis for the sensor assembly of Anemosens, a 3D printed anemometer that I developed for the second version of WinDIY. For this purpose, an […]
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ESPEasy can read out a large number of different sensors and / or control actuators (see also ESPEasy – Sensors & Actuators). With the help of the “Rules” it is […]
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I recently built an extraction system for my soldering station and the chamber of my 3D printer. The built extraction system has two connections. One of them sucks the air […]
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The 3D printed housing of the “pxlDigits” was initially not intended to be “just” a 7-segment display with WiFi. Originally I used it to build a kind of timer from […]
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For another project I urgently needed a relatively large number to indicate a duration. From this this small “sub-project” emerged. Because with the 3D printed frame described here and a […]
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There are some situations in which connecting an LDR to an ESP makes sense. In this way, the brightness in a room can be measured relatively easily and for little […]
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The idea for the pxlBlck_Pot is heavily inspired by a design that Lukas (@i_am_lukas) had created. He agreed that I can use his basic design. Thanks again for that. 🙂 […]
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The pxlBlck_SlotClock consists of a 1×60 LED matrix. It can display the time in the same way 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. There are now two options integrated into the pxlBlck plug-in. […]
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The adjustable dials differ from the type of LED matrix used. Unfortunately, this is the case because different LED-matrix sizes allow or do not allow different dials and screensavers. In […]
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Thanks to WiFi and thus (often) an internet connection, an ESP8266 or ESP32 programmed with ESPEasy also has the option to retrieve the actual time. In order for this to […]
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I2C is the bus protocol or technology via which a microcontroller can communicate with many sensors or actuators. Thanks to the right software, you can also connect and communicate with […]
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The actual flashing of firmware files such as .bin files or “binarys” on the Wemos D1 Mini, the NodeMcu dev board or any other board that is based on the […]
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In the articles Build a retro-smart home display via analog displays and ESPEasy – Install and configure the Nerdy PanelMeter plugin was described what you need to do to build […]
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In the article NodeRed/Tasmota – Building a WhatsApp(*) Icon Lamp explains how to build your own WhatsApp (*) lamp. The goal is to link these later with your SmartHome and, […]
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The article NodeRed/Tasmota – Building an Instagram (*) icon lamp explains how to build your own Instagram (*) lamp. The goal is to link these later with your SmartHome and, […]
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One thing that makes ESPEasy so practical and universal is the ability to read and control various sensors and actuators via commands. Especially in combination with appropriate rules, this results […]
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Each project consists not only of many important hardware components but also of the appropriate software. It is often less work to assemble the project than to write the appropriate […]
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The great thing about the concept behind the Arduinos is that in many cases you can benefit from the work of others. It does not matter which sensor you read […]
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Especially in the open source world you will sooner or later stumble on GitHub, GitLab or similar online-services with “Git” in the name – in search of program code. Behind […]
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In recent years, the ESP8266 has become more and more the universal microcontroller that can be used in almost any project. A microcontroller for ~2€ including Wi-Fi and with lots […]
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Besides the hardware, the right software for your project is just as important. A practical and universally applicable firmware for the “forest-and-meadow microcontroller” ESP8266 is the Tasmota firmware. This allows […]
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The other day I found an old control panel with old analogue displays when mucking out the cellar. It came to me the idea that somehow it must be possible […]
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The other day, I found the mason jar pictured below on the shelves of a large Swedish furniture company. Mason jars are not an invention from Sweden. I would almost […]
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The Sonoff 433Mhz RF Bridge is a cheap and easy way to drive devices that communicate with each other over the 433Mhz radio frequency. In principle, as the name suggests, […]
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Via the service of OpenWeatherMap.org You can get free weather data. To be able to access this service in an automated way – for example from NodeRed or from an […]
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Normally every Arduino board is programmed via the serial interface. But not only the program code can be transferred to the Arduino. You can also send control commands to or […]
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In order to make the series of spoon-articles a little more complete, I would like to explain briefly in this article how to proceed with the installation of programs and […]
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