Industrial Low Power TI CC3200 Wifi Module with Internal/External Antenna
  • Description

    C322 is a wifi module released by USR IOT,which has the features of minisize,low power and industry-grade. The hardware of C322 wifi module integrates MAC,baseband chip, RF transceiver unit and power amplifier. and C322 wifi module adopts CC3200 chip of TI.

    Serial UART to WIFI Bi-directional Transmission

    C322 is a wifi module released by USR IOT,which has the features of minisize,low power and industry-grade. The hardware of C322 wifi module integrates MAC,baseband chip, RF transceiver unit and power amplifier.

    C322 wifi module adopts CC3200 chip of TI,which has industrial ARM Cortex-M4 core and ultra-low power operation mechanism.And it supports WiFi protocol and TCP/IP protocol.User can achieve the function of UART devices connecting to Internet with simple configuration.

    USR-C322 Evaluation Board : USR-C322-EVK

    Product Features of ti wifi module

    • TI CC3200 Chip:TI chips;quality and delivery are guaranteed;based on ARM Cortex-M4 kernel;running frequency of 80 MHZ
    • Ultra-low power:  Working : Min 3.5mA; Deep Sleep : Min 25uA
    • Open SDK:Support secondary development according to TI SDK and “USR” encapsulated SDK (C322 SDK is available in May,2015.)
    • Minisize: 18.22*26.65*2.8(mm)
    • High-speed UART:Max baud rate of 3M bps
    • Simplelink:one key access to WiFi
    • Double serials : two UARTs
    • Three links : three TCP links
    • Two encryption communication methods : PC1 Encrypt,SSL encryption submission
    • More functions : custom webpage,websocket,httpd client
    • No data loss

    Ultra-low Power WIFI Module

    C322 supports five power modes,which has Min.3.5mA standby power and has Min.25uA deep sleep power.Its power control can be the highest level.

    Internal Structure of ti wifi module

    Function Upgrade of ti wifi module

    The above is function structure chart of C322 firmware V2.0.Blue part is for original function, orange for new features of V2.0. New features of firmware V2.0 includes double serial,three links,PC1 Encrypt,SSL encryption submission,http and Websocket communication mode.

    Double Serial,Three Links

    C322 has double serials and three network links.
    UART 0 supports two network links and one link supports TCP Server;UART 1 supports one network link.
    Application Example:
    1.Communication with two servers:two UARTs connect with two different servers and receive different commands for the servers;
    2.Data backup and remote debugging:serial data sent to the two servers by using two network links of UART 0;
    3.TCP Server and TCP Client can work at the same time;

    Security of Communication Data of ti wifi module

    Firmware V2.0 has two encryption communication methods:
    PC1 Encrypt:wifi module receives data,encrypts the data with PC1 Encrypt and sends the data to server; SSL Client:use SSL Client to submit data to server;

    Data Submitted to Web Server Directly

    Built-in Webpage with Custom Extensions

    C322 built-in webpage supports user-defined functions.
    C322 supports function of Ethernet to serial, which adopts HTML5 Websocket technology. Combined with custom webapge function, User can design built-in webpage to realize webpage control and data acquisition according to project requirement.

    Function and Detail of ti wifi module

    • High-speed Baud Rate : serial baud rate up to 3Mbps; have high speed in large amount of data transmission applications like WIFI printer,WIFI serial camera and WIFI high-speed data acquisition.
    • Onekey WIFI Connection : support two fast networking ways–“SimpleLink” and “UsrLink”;perfectly solve problems of complex networking operation in smart home applications.
    • RegistryPackage Function : send registry data package immediately after TCP connection,which is convenient for server identifying and processing;registry data package supports custom ID and MAC.
    • Baud Rate Sync : support using USR Visual Serial Software(USR-VCOM).

    Outstanding Performance of TI wifi module

      • In industrial field:positioning low power and industrial-grade WIFI module; can adapt to industrial environment of – 40 ~ 85 °C; TI’s great repetation also can guarantee the stability of core solutions in industrial environment; Amazing power control can adapt to any requirements.
      • In civilian field:positioning high-end intelligent civil products; support SimpleLink and UsrLink onekey APP networking mode.

    Test Report of ti wifi module

      • After go into sleep mode,C322 will go through three stages:
        ① average current of 3.5ma in sleep mode;② after data sent to wifi module,wifi module wakes up quickly and begins to send data;③ if no data sent to wifi module within 10s,wifi module will enter sleep mode again
      • Data sending test:
        network termination sends 34000 bytes at a time and serial receives 34000 bytes;
        network termination data wakes up wifi module and transmits to serial without data loss.
  • Product Specification

    System Information

    • Processor
    • TI CC3200(Cortex-M4 core)
    • Main Frequency
    • 80MHz

    Network Parameter

    • Network Protocol
    • IPv4 , TCP , UDP , DHCP , DNS , HTTP , ARP , ICMP
    • TCP Server Max TCP Number
    • 3


    • Standard
    • 802.11 b/g/n
    • Network Mode
    • AP / Station
    • Access Terminal Quantity in AP Mode
    • 1
    • Frequency Range
    • 2.412 GHz ~ 2.484 GHz
    • Transmit Power
    • 17.0 dBm @ 1 DSSS
      17.25 dBm @ 11 CCK
      13.5 dBm @ 54 OFDM
    • Receive Sensitivity
    • –94.7 dBm @ 1 DSSS
      –87.0 dBm @ 11 DSSS
      –73.0 dBm @ 54 OFDM
    • Transmission Rate
    • 802.11b:11 Mbps
      802.11g:54 Mbps
      802.11n:54 Mbps
    • Transmission Range
    • Max 200m (open horizon,3dbi antenna)
    • Security Mechanism
    • Security:WEP-A / WPA-PSK / WPA2-PSK
      Encryption:WEP64 / WEP128 / TKIP / AES
    • Antenna Interface
    • External: I-PEX connector
      Internal: on-board antenna


    • Port Number
    • 2
    • Interface Standard
    • TTL:3.3V
    • Data Bits
    • 5,6,7,8
    • Stop Bit
    • 1,2
    • Check Bit
    • None,Even,Odd,Space,Mark
    • Baud Rate
    • 300 bps ~ 3M bps
    • Flow Control
    • RTS / CTS
    • Buffer
    • receive 1K bytes


    • Virtual Serial (USR-VCOM)
    • Windows 2000 or higher(32bit/64bit)
    • Configuration
    • built-in webpage,serial AT command,network AT command
    • Networking
    • UsrLink:”USR” defined module networking mode
      SimpleLink:onekey networking provided by TI
    • Features
    • RegistryPackage:connecting or sending data with registration package(Registered package can be set as MAC address or double-byte characters)
      Baud rate sync
      Encryption communication
      Support custom webpage
      Support Httpd Client and Websocket (Web to Serial)

    Basic Parameter

    • Size
    • 18.22 x 26.65 x 2.8(mm)
    • Operating Temp.
    • -40 ~ 85°C (industrial)
    • Storage Temp.
    • -45 ~ 125°C,5 ~ 95% RH(no condensation)
    • Input Voltage
    • DC 3.0 ~ 3.6 V
    • Working Current
    • in the condition of 3.3V
      Continuous TX:~75mA
      Normal Mode:Average: ~18mA,Peak: 200mA
      Deep Sleep:Min 25uA


    • Certificate
    • CE / FCC,ROHS compliant
    • Warranty
    • 2 years
    • Accessory
    • null


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