The ESP8266 / ESP32 is a low cost Wi-Fi chip with full TCP / IP stack and microcontroller capabilities manufactured by Espressif Systems in Shanghai, China. These microcontrollers can be used for projects related to automation, Internet of Things, entertainment, etc. Various methods can be used to program the microcircuit such as Arduino IDE, Micropython, LUA, etc.
Also, the easiest way to get started with ESP8266 in ESP32 is to use the excellent binary firmware generator located at wifi-iot.com. Unfortunately, the guys stop writing in English, but everything is clear there, or you can use a translator or ask them a question.
Using the site is very simple, you mark the required modules and sensors on the web page, compile and upload the firmware to the module.
Then make the necessary settings through the module’s web interface.