DIY powerbank with voltage regulator and voltmeter
After building a simple powerbank, I now decided to combine a step-up module XL6009 with my existing powerbank. Fortunately, I had already constructed and tried …
Category: Hardware
Glare free lamp and powerbank
I bought a new 3D printer with a closed build chamber. At some point I noticed that one of the two extruders was clogged. The …
3D printed Dupont connector for jumper cable
Many DIY projects are accompanied by chaos at the workbench. Screwdrivers, soldering irons, jumper cables, everything lies all over the place. Clean up is usually …
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 …
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 …
Step-down Modul DC-DC LM2596S
I have recently constructed a housing for a step-up and had good experiences with it. However, since I also need the other direction, which is …
Step-up Modul DC-DC LM2587S
I bought a battery vacuum cleaner, but unfortunately after two weeks I could not find the charging adapter anymore. The specified voltage for the power …