10 Pack Eport-E20 TTL Serial to Ethernet Embedded Module, FreeRTOS TCP/IP MCU Network Converter 3.3V Low Voltage, Supports DHCP & Telnet for IoT Secondary Development

Eport-E20 is a tiny serial-to-Ethernet conversion module preloaded with mature FreeRTOS TCP/IP protocol stack, achieving bidirectional transparent data transmission between MCU TTL serial port and Ethernet. Powered by 3.3V low voltage, it can be directly connected to mainstream microcontrollers, eliminating extra level conversion circuits and simplifying peripheral design.

This module supports multiple transmission modes including TCP Server, TCP Client, UDP and Telnet. The DHCP function automatically obtains LAN IP addresses, avoiding tedious manual static IP configuration during mass equipment deployment. It can upload field serial data to remote servers and receive network commands to control local serial peripherals, widely applicable to industrial data acquisition, remote monitoring and smart device networking transformation.

With small lightweight PCB size, it can be flexibly integrated into custom circuit boards of various IoT terminals. The package contains 10 modules, sufficient for prototype verification, small-batch trial production and equipment maintenance. It reduces peripheral circuit design difficulty and greatly shortens the R&D cycle of network-connected MCU products.