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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Category: Arduino
The Arduino category lists all articles that deal with the construction, operation and programming of Arduino microcontrollers.
HowTo: ESPEasy – Configure MQTT server on the ESP8266 and subscribe to topics
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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HowTo: 3D printing – Build a servo-controlled 125mm butterfly valve
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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HowTo: Arduino – Build your own arduino timer “time_timy” to visualize a time period
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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HowTo: Electronics – Build seven segment LED digit called “pxlDigit” from WS2812 LEDs
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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HowTo: ESPEasy – Connect an LDR to the ESP8266 and read its value
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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HowTo: pxlBlck – Build your own pxlBlck_Pot
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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HowTo: pxlBlck – Build your own pxlBlck_SlotClock
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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HowTo: pxlBlck – Design icons, transfer them to the pxlBlck and display them
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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HowTo: pxlBlck – Configure watch faces and screensavers
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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HowTo: ESPEasy – Activate NTP time retrieval from the Internet
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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Code snippet: Arduino – Activate I2C broadcast reception
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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HowTo: ESP8266 – Flashing .bin files under Windows using “Esptool”
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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How To: Node Red – Supply Nerdiys PanelMeter with weather data
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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How To: Node Red – Control the WhatsApp(*)-lamp
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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HowTo: Node Red – Control the Instagram(*)-Lamp
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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HowTo: ESPEasy – execute commands and actions via HTTP, MQTT, UDP and directly
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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HowTo: ESPEasy – Compile firmware, flash and configure WiFi access data
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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HowTo: ArduinoIDE – Install a library
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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HowTo: GitHub – How to copy files from a git-repository to my computer
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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How To: ESP8266 – Remove/disable LED
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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HowTo: Tasmota – firmware flashing
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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HowTo: Build a retro-smart home display via analog displays
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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HowTo: Tasmota – Build your own SmartHome Gloworm lamp
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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HowTo: Sonoff – 433Mhz RF Bridge flashing Tasmota firmware
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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HowTo: Register OpenWeatherMap.org API Key
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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HowTo: Arduino – Possibilities of the serial port
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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HowTo: Install programs – an example
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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ArduinoIDE – Tips and Tricks
The ArdunioIDE is very simple compared to other development environments. There are not many things you can turn on or off. This has the advantage that beginners are not overwhelmed […]
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Fibonacci Clock – User Manual
In the articles FibonacciClock – An Unusual Time Indicator, FibonacciClock – Assembly and FibonacciClock – Programming is described how to build your own Fibonacci Clock. Just in case you want […]
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