2X CH9121 TTL to Ethernet Converter Module 10/100Mbps, for STM32 MCU,RS232 RS485 Serial Port Module

2X CH9121 TTL to Ethernet Converter Module 10/100Mbps, for STM32 MCU,RS232 RS485 Serial Port Module Popis

This module is built around the CH9121 chip, providing stable and efficient TTL to Ethernet conversion. It supports 10/100Mbps adaptive Ethernet, enabling reliable network communication for industrial control systems, IoT devices, and embedded applications.
Designed as an industrial-grade serial server module, it offers long-term stable operation in harsh environments. With wide voltage input and robust circuit design, it is suitable for industrial automation, data acquisition, remote monitoring, and Factory scenarios.
The module supports UART serial communication and is fully compatible with STM32 and most mainstream MCUs. It simplifies network function integration into existing MCU projects, reducing development difficulty and accelerating project deployment.
Integrated TCP/IP protocol stack allows direct UART to TCP/UDP communication without additional processors. It supports multiple working modes such as TCP Server, TCP Client, UDP, and can be flexibly configured to meet different networking requirements.
According to application needs, the module can support TTL/RS232/RS485 level interfaces (depending version), making it easy to connect to industrial PLCs, sensors, meters, and other serial devices. It enhances system scalability and communication distance.

Color: As Shown
Material: PCB

Package Contents:
2 x Module