Low-Cost super port TTL UART to Ethernet Module

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Low-Cost super port TTL UART to Ethernet Module
Low-Cost super port TTL UART to Ethernet Module
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Price: $11.00
Availability: In Stock
Model: USR-K6
Manufacturer: USR IOT
Average Rating: Not Rated

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Unique Features

1.Tiny Size

2.Low-Cost solutions

3. Supports web-page configuration, AT command

4- Websocket, watchdog

Serial Ethernet Module Introduction

This is a serial TTL to Ethernet module, used for data transparent transmission. USR-K7 is the high-performance and industrial version of Super Port. It is an embedded serial networking module, whose function is to realize bidirectional transparent transmission between TTL and Ethernet. You can apply USR-K7 to your products to realize networking communication. User can directly process data interaction through network and device to realize remote data acquisition, remote control and management.

USR-K7 ( The updated version of old module USR-K3) is based on Cortex-M4 solution, which has high speed,high stability and basic frequency up to 120MHz. 

Serial Ethernet Module Features

  • 10/100Mbps can adopted to Ethernet, support AUTO-MDIX switching of network cablle crossovers.
  • Work mode:TCP server, TCP client, UDP server, UDP client, Httpd client.
  • Baud of the serial port can edit from 600bps to 460.8Kbps.
  • Customize heartbeat package, keep the connection real and reliable, no crash.
  • Customize registration package, check the connection status, and also customize the head of package.
  • In TCP Server mode, the number of client connected can be modify from 1 to 16, default is 4. The IP of connected client can be see. Send and receive data according to connection calculation.
  • In TCP Server mode, when the number of client reaches to the max number, the new client can instead of the old one
  • TCP client short connection, the time can be set.
  • Timeout to restart
  • Before the TCP connection, the user can set whether to clear the previous data
  • DHCP, can get the IP automatically
  • The unique MAC address in the world, and the address can be modify. Support the function of customize MAC.
  • Support DNS, domain name resolution.
  • Support customize the address of DNS server.
  • Support upgrade the firmware from webpage, more convenient.
  • Support Virtual COM Software
  • Support software and hardware restart to the factory setting.
  • Support across the gateway, switching and router
  • Support work in LAN, also can access the external.

USR-K6 Parameters


Hardware parameters

Work volt

DC: 3.0~3.6 V

Run current


Net port type


Serial baud rate

600-460.8K( bps )

Serial standard


Software parameters

Network protocol


Method of IP access

Static IP, DHCP

Domain name solution


User setting

Protocol setting, webpage setting, AT command setting

Simple transparent transport

TCP server /TCP client/ UDP server / UDP client



Httpd client


TCP server

max number of connected TCP is 16

Network cache

Send: 6Kbyte; receive: 4Kbyte

Serial cache

Receive: 1K bytes

Average transport delay


Set of software

V-COM; USR- cloud; setting software

Packaging mechanism

4 byte packaging time; 1024 bytes packaging length




Input Voltage


Working Current


Net port

Rj45, 10/100mMbps

Serial port


Software Parameters

Network protocol


Access way to IP

Static IP, DHCP



User parameters

Software setting, webpage setting, AT command

Single transparent transmission

TCP Server/TCP client/UDP Server/UDP Client

Similar RFC2217


Httpd client


TCP server connection

Default 4 and maximum 16

Net buffer

Send:6Kbyte; receive:4Kbyte

Serial port buffer

Receive: 2048byte

Average transport delay


Set software

USR-VCOM, USR-Cloud, parameters setting software

Package mechanism

4 byte package time and 1024byte length





35.0x19.39x18.25 mm(L*W*H)

Operating Temp.


Storage temp


operating humidity

5%~95% RH

Storage humidity

5%~95% RH


Electrostatic bubble


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