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

It’s still an ESP32, but one that’s more useful, and it’s worth a closer look because we expect it to figure in quite a few projects. Espressif’s block diagram for the chip. Sadly the data ...

For those looking to upgrade their kid’s ride, [David] has provided source code for the ESP32, a parts list, a wiring diagram, and even the 3D models for the few parts that needed to be printed.