Hardware Archives - Nerd Corner

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, 2021June 6, 20211

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 …