ESP-WROOM-32 Is Also Called ESP-32S, ESP32D, ESP32
This module / board (terms are used interchangeably in the electronics / tech world) has many different manufacturers, such as Adafruit, Arduino, HiLetgo, and others. It’s a programmable development board featuring 2.4 GHz dual-mode Wi-Fi + Bluetooth, a dual core microcontroller processor, integrated with an antenna radio frequency amplifier filter (improves antenna’s signals filtering out noise / clutter), and acts as an access point and as a client / station (AP STA).
This is perhaps one of the most advanced microcontroller boards out there, because it’s faster and more powerful than any development board mentioned here, besides the Raspberry Pi computers of course.
*post to be continued*