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WiFi OEM Module, 2mm Pitch, USB2.0 Signals, 3.3V, U.FL Connector US$10.00

WiFi OEM Module, 2mm Pitch, USB2.0 Signals, 3.3V, U.FL Connector

WIFI-2 is an Ogemray GWF-3M08-33-B-7-2 OEM WiFi Module designed to use a USB2.0 port on a 3.3V system. It has a Ralink/MediaTek RT5370N WiFi module and an i-PEX MHF (U.FL) connector for attaching an external antenna. Its 7-pin interface at 2mm pitch allows it to be connected to an Arietta-128MB or Arietta-256MB embedded Linux module (a header socket is included that you can solder to your Arietta so you can plug in this WiFi module).

You could use a 2mm-pitch prototyping board to build this into your own design.

This is not an end-user USB WiFi module! It is designed to be embedded into a device that would provide the actual USB port.

Although this module has an antenna trace on its PCB, that trace is not connected. If you only need a short-range solution using an integrated PCB antenna, purchase the WIFI-2-IA which has its integrated PCB antenna connected (but does not have a U.FL connector).

Compatible Antenna

A compatible WiFi antenna solution is the U.FL-to-RPSMA Adapter plus the External WiFi Antenna.

WiFi Module Features

  • Standards: IEEE802.11b/g/n (1T1R mode)
  • Operating Frequency: 2.412 to 2.4835 GHz
  • Protocols: CCK, QPSK, BPSK (802.11b); OFDM (802.11g/n)
  • Security: WPA/WP2/WPAI, 64/128/152-bit WEP, WPS
  • Antenna: Requires external antenna to be attached to U.FL connector
  • Operating Voltage: 3.3V DC
  • Operating Current: Less than 250mA (OFDM, 54Mbps)
  • Bus Interface: USB 2.0/1.1 via 7-pin 2.0mm-pitch header
  • Can be configured for Access Point mode


Pin Signal Description
1 TX RF ON/OFF control. Low level activated to OFF
2 3V3 Power supply 3.3V DC
3 D- USB data -
4 D+ USB data +
5 GND Ground
6 LED Activity LED output
7 WPS WPS function. Low level activated

Using WiFi Module on Arietta G25

The Arietta boards have a 7-pin through-hole header designed to support this module, and the Ralink Kernel driver is already installed in the default microSD image for Arietta (see link below for configuration instructions).

Note that the Activity LED on the WiFi module is not connected on Arietta boards. Also note that the module uses Arietta's USB port B signals on J4.16 (D+) and J4.18 (D-), so those pins can not be used for other purposes when this module is installed.

WiFi Module Resources

This product was added to our catalog on Tuesday 04 November, 2014.


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