CH9121 STM32 Serial Port RS232 to Ethernet Network Converter Module TTL Transmission Module Industrial Microcontroller G

Overview RS232 to Ethernet 5 18V power supply one button setting parameters AT means to modify the module parameters in real time automatically obtain IP one button to restore factory settings The module is a universal serial to Ethernet transparent transmission device which can be connected to MCUs such as 51 AVR PIC ARM etc or other serial port TTL devices Features Support 5V or 3 3V power supply choose one Serial TTL level pin IO compatible with 3 3V and 5V voltage Serial port baud rate supports 300 921600bps The serial port supports full duplex and half duplex serial communication and supports RS485 transceiver automatic switching Two way transparent transmission of serial data and network data Support MDI MDIX polarity automatic conversion cross connect or directly connect the network cable to any connection the module automatically switches Support DHCP to automatically obtain IP address and support DNS domain name access Support KEEPALIVE mechanism Support virtual serial port software virtualize the network port into a computer COM port Working mode supports TCP CLIENT TCP SERVER UDP CLIENT and UDP SERVER 4 modes Supports 10 100M full duplex half duplex adaptive Ethernet interface compatible with 802 3 protocol Set the serial port and network parameters of the chip through software and serial commands and save the parameters after power off Search and query all devices in the LAN through the UDP broadcast protocol to f