Hardware Archives - Nerd Corner

3D printed Dupont connector for jumper cable

May 27, 2022May 31, 20220

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

March 6, 20220

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)

September 27, 2021September 27, 20210

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

July 26, 2021July 29, 20210

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 …

Upgrade: Data transfer via VLC and LiFi – Pi to Pi transfer

July 8, 2021July 8, 20217

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

June 21, 2021September 8, 20219

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

May 29, 2021September 8, 20221

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

May 6, 2021June 6, 20212

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 …