EMW3166 WiFi Module

EMW3166 WiFi Module

SKU 113990416
14 Available
$9.95/ 1pcs+
$9.45/ 10pcs+


EMW3166 is one embedded Wi-Fi module of low-power, small-size and low-cost designed by MXCHIP. It integrates one Cortex-M4 microcontroller of 256Kbytes SRAM and 1Mbytes on-chip flash with another 2Mbytes on-board SPI flash added. Various peripheral interfaces of analog and digital are available. The power supply voltage is 3.3V. It applies half-hole footprint for hand-soldering. The module runs MICO, which is the IOT OS System of MXCHIP, and is available for secondary development. The TCP/IP protocols and security encryption algorithm could be applied in various Wi-Fi applications. In addition, several particular firmware prepares for some typical applications, like UART to Wi-Fi DTU, easylink configuration and services for cloud interfacing.



  • Integration of one Cortex-M4 MCU and one RF chip of 802.11 b/g/n

  • Cortex-M4 core at 100MHz

  • 2M bytes on-board SPI flash and 1M bytes on-chip flash

  • 256K bytes SRAM

Operation voltage

  • Low voltage mode: 2.3~3.0V

  • Normal voltage mode: 3~3.6V


  • 25 GPIOS

  • JTAG/SWD debug interfaces

  • Wi-Fi connectivity:

  • 802.11 b/g/n available

  • WEP, WPA/WPA2, PSK available

  • 16.5dBm@802.11b, 14.5dBm@802.11g, 13.5dBm@802.11n

  • Receiver Sensitivity: -87dBm

  • Station, Soft AP and Wi-Fi Direct

  • Easylink available

  • On-board PCB antenna and IPEX connector for external antenna

  • CE, FCC compliant

Operation Temperature

  • -30°C~+85°C

Application scenarios

  • Auto electronics

  • Point of Sale system

  • Industrial automation systems

  • Medical/Health care

  • Smart home appliances

  • Smart LED

Technical Details

Dimensions32mm x 16mm x 3mm
WeightG.W 3g    

Part List

EMW3166 WiFi Module(External IPEX antenna)1




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    EMW3166 WiFi Module

    SKU 113990416
    14 Available
    $9.95/ 1pcs+
    $9.45/ 10pcs+
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