If so, you should seriously check out [0xjmux]’s ESP-PROG-Adapter project, because [0xjmux] has put a lot of love and care into making your ESP32 hardware interfacing a breeze.

In a recent article in Elektor magazine, [Clemens Valens] describes the construction and software for an ESP32 walkie-talkie system that uses ESP-NOW for the wireless connection between units ...