{"product_id":"1pc-ch9121-serial-to-ethernet-network-module-serial-server-for-stm32","title":"1Pc CH9121 Serial-to-Ethernet Network Module Serial Server for STM32","description":"\u003ch3\u003e1Pc CH9121 Serial-to-Ethernet Network Module Serial Server for STM32\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eCH9121 Serial to Ethernet Module, TCP\/UDP Network Serial Server, 3.3V\/5V TTL,\nRS485 Auto Switching, STM32 Compatible Product Specifications Chip: CH9121\nSupply Voltage: 3.3V \/ 5V Serial Baud Rate: 300 bps to 921,600 bps TTL Level:\n3.3V and 5V compatible Ethernet: 10\/100M auto-negotiation Modes: TCP Client,\nTCP Server, UDP Client, UDP Server Features: DHCP, DNS, KEEPALIVE Dimensions:\n43 x 26 mm Pin Definitions RESET: Factory reset \/ power-on detect, active low\nRSTI: External reset input, active low DIR: RS485 transmit\/receive control\nCFG: Configuration mode select pin TCPS: TCP client connection status output\nRXD: UART input RUN: Module status indicator output TXD: UART output GND:\nGround 3V3: 3.3V power input 5V: 5V power input Applications Serial device\nnetworking; STM32 and MCU communication; Industrial control systems; RS485\nnetwork conversion; IoT and embedded Ethernet projects\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n  \u003cul class=\"a\"\u003e\n         \u003cli\u003eSerial to Ethernet Conversion: Converts serial data to network data with bidirectional transparent transmission, ideal for STM32, microcontrollers, and industrial communication projects.\u003c\/li\u003e\n         \u003cli\u003eMultiple Working Modes: Supports TCP CLIENT, TCP SERVER, UDP CLIENT, and UDP SERVER modes for flexible network communication in different applications.\u003c\/li\u003e\n         \u003cli\u003eWide Baud Rate and TTL Compatibility: Supports serial baud rates from 300 bps to 921,600 bps and works with 3.3V\/5V TTL levels for easy device integration.\u003c\/li\u003e\n         \u003cli\u003eBuilt-In Network Features: Includes integrated TCP\/IP stack, 10\/100M auto-negotiation, MDI\/MDIX auto-detection, DHCP, DNS, and KEEPALIVE support for reliable networking.\u003c\/li\u003e\n         \u003cli\u003eEasy Configuration and Compact Size: Settings can be configured via host software or AT commands and are saved after power-off; compact 43 x 26 mm size makes installation simple.\u003c\/li\u003e\n  \u003c\/ul\u003e","brand":"MakerCircuit","offers":[{"title":"Default Title","offer_id":68250158465261,"sku":"B0HFBT3BXL","price":98.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0324\/1050\/1164\/files\/B0HFBT3BXL.jpg?v=1794302290","url":"https:\/\/leoforward.com\/products\/1pc-ch9121-serial-to-ethernet-network-module-serial-server-for-stm32","provider":"LeoForward AU","version":"1.0","type":"link"}