Zentri Legacy Wi-Fi Modules


The Zentri Legacy Wi-Fi Modules have reached End of Life (EOL) status.

For newer designs, we recommend you use the WGM160 Wi-Fi Modules.


Zentri Wi-Fi modules offer an embedded TCP/IP networking stack and web server with RESTful API/websockets and SSL/TLS/HTTPS security and RF pads, allowing maximum antenna flexibility, and full regulatory certification. The modules ship with a fully licensed version of ZentriOS, the connectivity operating system of choice for resource-constrained IoT devices that may require device management services. ZentriOS accelerates time-to-market by providing a common software foundation across multiple product lines. The OS provides integrated security, sophisticated network connectivity features, file management, rich peripheral interfaces and more. 

Device management

Zentri Module Common Specs


  • IEEE 802.11 b/g/n

  • Wi-Fi Security

  • Open
  • WEP-40
  • WEP-104
  • WPA
  • WPA2-PSK
  • WPA/WPA2-mixed

  • Hardware Communication Interfaces


    Data Throughput

  • 4 Mbit/s over UART, 10 Mbit/s over SPI

  • RF Transmit Power

  • +18 dBm (11b max.)
  • +16 dBm (11g max.)
  • +14 dBm (11n max.)

  • Microprocessor & Memory

  • ARM Cortex-M4
  • Integrated 512 kB flash
  • Onboard 8 Mbit (1 MByte)
  • SPI-serial flash

    Operating Temperature

  • -30 to +85 ºC

  • Power Consumption

  • Standby: 3.8 μA
  • Sleep: 10 μA
  • Wi-Fi Powersave: 0.77 mA
  • Active Rx: 5.7 mA (1 Mbit/s UDP)
  • Active Tx: 11.4 mA (1 Mbit/s UDP)

  • Software

  • Pre-preprogrammed with ZentriOS
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Part Number Application MCU Antenna TX Power (dBm) RX Sensitivity (dBm) Host Interface Flash RAM Package Size (mm)

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