{"product_id":"ch9121-stm32-serial-port-rs232-to-ethernet-network-module-ttl-transmission-module-industrial-microcontroller","title":"CH9121 STM32 Serial Port RS232 to Ethernet Network Module TTL Transmission Module Industrial Microcontroller","description":"\u003cdiv\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eRS232 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.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Support 5V or 3.3V power supply, choose one;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Serial TTL level, pin IO compatible with 3.3V and 5V voltage;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Serial port baud rate supports 300 ~ 921600bps;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- The serial port supports full-duplex and half-duplex serial communication, and supports RS485 transceiver automatic switching;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Two-way transparent transmission of serial data and network data;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Support MDI\/MDIX polarity automatic conversion, cross-connect or directly connect the network cable to any connection, the module automatically switches;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Support DHCP to automatically obtain IP address and support DNS domain name access;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Support KEEPALIVE mechanism;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Support virtual serial port software, virtualize the network port into a computer COM port;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Working mode supports TCP CLIENT, TCP SERVER, UDP CLIENT and UDP SERVER 4 modes;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Supports 10\/100M, full-duplex\/half-duplex adaptive Ethernet interface, compatible with 802.3 protocol;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eSet the serial port and network parameters of the chip through software and serial commands, and save the parameters after power off;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e- Search and query all devices in the LAN through the UDP broadcast protocol to facilitate unified management of devices;\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003eSpeciications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eEthernet Parameters:\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eNumber of ports: 1\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eInterface standard: RJ45 interface\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eLAN Ethernet: 10 \/ 100Mbps\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eData cache: 6K bytes\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eProtection: 2KV electromagnetic isolation\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eNetwork protocols: IP, ARP, TCP, UDP, ICMP, IGMP, DCHP and so on\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eSerial Port Parameters:\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eNumber of ports: 1\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eInterface standard: TTL serial port, 2.54MM pin, 3.3V or 5V level\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eBaud rate: 300 ~ 921600bps\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eData bits: 5,6,7,8,9\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eStop bit: 1,2 bit\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eParity: no parity, odd parity, even parity\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eFlow Control: None\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eCache: 2K bytes\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eSupporting Software:\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eParameter configuration: network configuration software, serial AT command\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eModule testing: test software (network, serial one)\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eBasic Parameters:\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eSize 43mmx23mmx14.5mm (length x width x height)\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eWorking voltage DC3.3V \/ 5V\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eOperating current 200mA @ 5V\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003ePower consumption ≤ 1W\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eOperating temperature -40 ~ 85 ° C\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eStorage temperature -55 ~ 125 ° C\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003ePin Description:\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e1. RESET: Factory reset pin, the module power-on detection, active low\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e2. DIR: RS485 receive, send switch control pin\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e3. TCPCS: TCP client mode, the port connection status indicator pin, the connection is successful output low\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e4. RUN: module running status indication pin, input 2Hz square wave\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e5. GND: Power Ground Pin\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e6. 3.3V: 3.3V DC power input pin, greater than 200mA, and 5V DC power supply optional\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e7. GND: Power Ground Pin\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e8. 5V: 5V DC power input pin, greater than 200mA, and 3.3V DC power supply can choose one of two\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e9. RSTI: reset pin, the internal pull-up, low-effective, can not be vacant\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e10. CFG: serial port configuration module enable pin, built-in pull-up, low-effective, do not have to be vacant\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e11. RXD: Serial data receive pin, serial port TTL level, compatible with 3.3V and 5V\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e12. TXD: serial data transmission pin, serial TTL level, compatible with 3.3V and 5V\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e13. GND: Power Ground Pin\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e14. 3.3V: 3.3V DC power input pin, greater than 200mA, and 5V DC power supply optional\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e15. GND: Power Ground Pin\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e16. 5V: 5V DC power input pin, greater than 200mA, with the optional 3.3V DC power supply can be.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003ePackage Included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e1 x CH9121 Serial Port RS232 to Ethernet Network Module\u003c\/span\u003e\u003c\/div\u003e\u003cbr\u003e\u003cimg alt=\"\" class=\"Serial Port RS232 to Ethernet Network Module\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/32\/9A\/49cdb804-5177-4e93-bed1-3b7e80d33d3b.JPG\" title=\"Serial Port RS232 to Ethernet Network Module\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/7D\/B5\/71f40f8c-7607-4d94-8fab-483cca0b30c9.JPG\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/F3\/E5\/77162af4-6cdd-4a71-876c-3da2ab3905c6.JPG\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/C1\/56\/c6bd9fb7-a8bc-4181-ae0d-3388a4442fc7.JPG\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/87\/19\/ab923867-93fd-43c2-8381-7696441ab3ae.JPG\"\u003e","brand":"Shopify","offers":[{"title":"Default Title","offer_id":14585332564012,"sku":"1441584","price":715.76,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2787\/9162\/products\/bbdc89bb-843a-429e-9a73-91d7c815dfc6_e55b2724-bb53-4be2-bcdf-f420ea6a7cda.jpg?v=1582028095","url":"https:\/\/electronic-pro-south-africa.myshopify.com\/products\/ch9121-stm32-serial-port-rs232-to-ethernet-network-module-ttl-transmission-module-industrial-microcontroller","provider":"Electronic Pro ","version":"1.0","type":"link"}