This sound alternator is designed to simulate the effects of a police siren, combining sound and light to create a dynamic ...

The ESP32 has USB capabilities built in ... show the dev board can receive and run programs is blinking an LED. Building the circuit on a breadboard shows that this minimalist design works ...

At its core, the ESP32 chip is not much more than an integrated circuit, a huge mass of transistors sealed inside an epoxy resin package with some leads. Of course, most of us won’t buy discrete ...