This is a client for dynamic DNS services, aimed at ESP (ESP32, etc) devices. Your node can use such a service to make its IP address known as a public DNS name, so you can find it, and use it from applications.
Waveshare ESP32-P4-Module-DEV-KIT Development Board Compatible with a 2.1-inch circular screen (480x480 resolution) via DSI interface, paired with ST7701S driver chip. It also integrates FT3236/FT6X36 I2C touch driver for precise touch interaction.