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, …

Broadlink Smart Bulb Conversion to Open Source

Introduction Recently I have come across some smart LED light bulbs that came in different sizes, shapes, functionalities and manufacturers. One thing they share is that they all do their “smarts” over a WiFi connection for which you need to use a smartphone and one of the many apps that …

Bipolar Stepper Motor Driver Circuit with LMD18245

Introduction For some time I have been planning to build a number of devices that make use of stepper motors. Since I have no experience in using stepper motors I had no idea what parts, what driver and controller circuits I would need to get them running. After extensive research …