ESP32-ETHO1 is an embedded serial-to-Ethernet module based on the ESP32 series. The module integrates an optimized TCP/IP protocol stack, which makes it easy for users to complete the networking function of embedded devices, greatly reducing the development time cost. It has ultra-high RF performance, stability, versatility and reliability, as well as ultra-low power consumption. The module board width is a universal width. The module can be directly welded on the board, the connector can be welded, and it can also be used on the breadboard, which is convenient for users to use in different scenarios. WIFI frequency range: 2.4-2.5 GHz Network port specifications: RJ45, 10/100Mbps, cross-connection and direct connection adaptive Serial port baud rate: 80-5000000 Onboard Flash: 32Mbit Operating voltage: 5V or 3.3V power supply (choose one) Operating current: average: 80mA Power supply current: minimum: 500mA The product appearance and printed words may vary depending on the batch, but this does not affect use. Colour:Black Material:PCB Package Contents: 5 x Wireless Module Kit 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.