Printed connector as soldering aid for jumper cables and LED strips
For one project, I spent a lot of time preparing cables (cutting, stripping, twisting, and applying solder to the strands). For prototypes, on the other …
WeMos D1 R2 setup and wifi integration
I have often thought that it would be extremely convenient to connect my Arduino projects with the Wi-Fi. At some point I randomly came across …
How to build a Custom Angular Reactive SVG Form with clickable elements
During the Corona pandemic, many companies and employees discovered home office. As a result, it became apparent that not every employee required his own workstation. …
How to build a PUSH based architecture in Angular – Facade Design Pattern
Typically, a PULL-based architecture is used in software development and only rarely a PUSH-based architecture. A service is called to request data from a server, …
Improved LM2587S voltage converter (Step-Up Modul DC-DC)
I found some more possibilities to use the LM2587S voltage converter (step-up DC-DC module) after the development of the first case. The module is extremely …
Review Battery Shield V3 – DIY Powerbank with LiPo 18650
I was looking for a battery with a battery management system for my outdoor projects (weather station, irrigation system, etc.). While browsing online stores, I …
Handcrafted / Hardware / Linux / Software
Upgrade: Data transfer via VLC and LiFi – Pi to Pi transfer
After I already transferred simple text messages via light signals from a Raspberry Pi to an Arduino Uno ( Link: https://nerd-corner.com/sending-text-messages-with-visible-light-communication/ ), I wanted to …
Sending text messages with visible light communication or LiFi – Pi to Arduino
I like the idea of sending data via visible light. In general, Li-Fi (Light Fidelity) and VLC (Visible Light Communication) are heavily discussed at the …
Cyclic Redundancy Check in C code
I plan to build a transmitter and receiver station which is able to transmit data with the help of light signals (“Visible Light Communication” – …
Magnetic clamp for strong neodym magnets
There are often huge round magnets in different colors for magnetic boards, but unfortunately they usually don’t hold properly. That’s why I ordered so-called super …