Based on the ESP32-S3 microcontroller, it is equipped with a 32-bit Xtensa LX7 dual-core processor with a main frequency of up to 240 MHz. Built-in 2.4 GHz WiFi and Bluetooth LE dual-mode wireless communication, with superior radio frequency performance Use high-quality relays to enable access to loads: less than 10A 250V AC or less than 10A 30V DC The onboard isolated RS485 interface facilitates external expansion and access to various industrial RS485 Modbus expansion modules or sensors. The onboard Pico-compatible interface can be adapted to some Pico expansion boards to facilitate the expansion of RTCI/CAN/RS232/LoRa/sensor and other functions. The onboard USB Type-C interface can be used for power supply and download debugging, convenient for development and use There is a terminal block power supply interface on the board, which supports a wide voltage range of 7-36V, making it suitable for industrial power supply. Onboard optocoupler isolation prevents the relay from being