How I Made a Clock out of Parts of Old Projects

One side effect of ordering PCBs from a professional fab house is that you always get more PCBs than you actually need. For example, when you place an order for a PCB prototype at PCBWay, you get at least 10 copies of the PCB, sometimes even more. In most cases, …

ESP32-S3-Mini-1 Development Board

Below I present my own ESP32-S3 development board. The reason for creating my own development board is twofold: Features and advantages This board is using the ESP32-S3-MINI-1 module from Espressif. The board’s features include the following: Schematics Here is the schematics of the development board: Board As usual, I designed …

An ESP-Now – WiFi Gateway or Preparing for Integrating Solar Powered ESP Based Devices to my Home Automation System

Since I live in an area where sunshine is almost always abundant, it makes sense to harvest energy from the sun as much as possible. This includes making various sensors around the house, especially the ones that are outside, operate with solar energy. This is usually not a very difficult …

Privacy Respecting Nanoleaf Replacement Light Panels

In the following I am going to describe my own version of the light panels that, in my view, eliminate all the disadvantages of the commercial products while keeping all the advantages. I am aware that others have made similar light panels. I am making and publishing my own version, …

USB Mini-B Socket – USB Type-A Plug Conversion on a USB-TTL Adapter

Introduction Earlier today I needed an extra of those USB-to-TTL-Serial adapters for a project I am currently working on. Among my spare parts I found an old one, based on the PL-2303HX chip, but when I attached it to my Windows 11 PC, it didn’t seem to work. I remember, …