Based on the ESP32-S3 microcontroller, it has a built-in Xtensa 32-bit LX7 dual-core processor with a main frequency of up to 240MHz Integrated 2.4GHz Wi-Fi and Bluetooth 5 Low Energy (LE) dual-mode wireless communication for excellent performance Onboard isolated RS485 interface, convenient for external access to RS485 Modbus industrial expansion modules or sensors Onboard isolated CAN interface for easy access to CAN devices Onboard USB Type-C interface, which can be used for power supply and download debugging, making it convenient for development and use Onboard pin header allows connection to other devices Onboard terminal block power supply interface supports a wide voltage range of 7V - 36V, convenient for industrial power supply use Onboard RTC clock chip, supports scheduled tasks Onboard digital isolation to prevent external signals from interfering with the control chip Onboard integrated power isolation can provide stable isolation voltage, and no additional power supply is required for the isolation end Onboard RS485 transmit and receive indicator and CAN working indicator, convenient for sensing the operating status of the device Guide rail type protective shell, easy to install and use, with shell model:ESP32-S3-RS485-CAN microcontroller:ESP32-S3 (ESP32-S3R8 chip by default, ) wireless communication:2.4GHz Wi-Fi (802.11 b/g),Bluetooth 5 (LE) Power supply range:7V-36V Color: As Shown Material: plastic Package Contents: 1 x RS485 CAN Communicator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.