Application scenarios:

Auto electronics
Point of Sale system
Industrial automation systems
Medical/Health care
Smart home appliances
Smart LED

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.

Detailed parameters



  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: 


Selection table:

Hardware architecture:

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