There are a lot of ESP32-based development boards out there– and why not? It’s a versatile chip that can be used in all sorts ...

If you’re not aware, there is such a thing as adorable little three digit LCD 7-segment displays. They come in a ten-pin DIP ...

This document is aimed at the Arduino developers, radio experimenters, hobbyists and anyone interested in building a receiver based on the Si473X IC family from Silicon Labs. This project is about an ...

This noise generator has an adjustable bandwidth and a consistent amplitude no matter what bandwidth is selected. When working on a recent Design Idea for an adjustable filter, I wanted to use an ...

It's amazing what you can do with an ESP32 (or two).

Arduino Battery Capacity Tester is a simple hardware and software project for measuring battery discharge or charge characteristics using an Arduino-compatible microcontroller, an ACS712 current ...

Engineers often encounter difficulty when attempting to accurately rectify low-amplitude AC signals using standard diode-based circuits. The primary issue arises from the diode’s forward voltage drop, ...