ESP01 ESP8266 WIFI Repeater (NAPT)

The ESP-01 is a popular Wi-Fi module based on the ESP8266 microcontroller. It can be used in various IoT applications to connect devices to a Wi-Fi network and enable communication over the internet.
Presenting here is a simple NAPT wifi repeater build around ESP-01 module. It uses example sketch from ESP8266 Arduino Library.