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Barebones Wireless Appliance Development Kit

Image: Barebones Wireless Appliance Development Kit
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Get unfettered access to the Overo AirSTORM computer-on-module with the Barebone Network Appliance Development Kit. Featuring an Alcatraz breakout board offering access to 140 signals and onboard 802.11b/g, this barebones kit gives network appliance developers the tools they need to get started creating sophisticated and flexible appliances.

2 x 70-pin AVX connectors


802.11 b/g Included

ARM Cortex-A8

Bluetooth Included
Camera Connector

27-pin connector for camera signals

COM Mounting Holes

Four (4) x #0 mounting holes for securing to Overo-series, or custom, expansion board

Height 4.2 mm

For OEM design, refer to the layout version shown here.




Within the Overo series of products


Up to 2,000 Dhrystone MIPS


3.5V - 5V

Power Management

Texas Instruments TPS65950


Texas Instruments Sitara AM3703

Processor Speed

1 GHz (Recommended @ 800MHz)


Built with components rated 0C < T <85C

USB Console Port


USB Device



GS3703A @ 5.6g

GUM3703A @ 42.6g (incl. shipping case w/ antennas)



Each Barebones Wireless Appliance Development Kit comes with:

Image of Barebones Wireless Appliance Development Kit
  • 5V US Power Adapter

    5V power adapter for use in North America.

  • Alcatraz

    A breakout board that provides access to all 140 signals available from the dual 70-pin connectors of any attached Overo COM.

  • Overo AirSTORM COM

    AM3703-based Gumstix Overo computer-on-module with 802.11 b/g and Bluetooth wireless communications

  • Overo System Card (Ubuntu 8GB)

    8GB Ubuntu System Card

  • USB Mini-B to Standard-A Cable

    A USB cable for connecting your USB Console Port-enabled Gumstix system to a development machine or for USB On-the-Go in device mode.

Key components

Connect to an RS232 serial terminal over USB with the FTDI FT232RQ interface.

spec sheet
Micron 512MB DDR LPDRAM & 512MB NAND Flash Memory

Package-on-package (PoP) memory solution that minimizes power consumption, maximizes board space and increases speed.

microSD Card Slot

An onboard card-slot for system storage expansion using microSD cards.

Texas Instruments AM3703 Applications Processor

1GHz ARM Cortex-A8 Sitara AM3703 high-performance microprocessor designed to provide best in class ARM and graphics performance while delivering low power consumption. According to Texas Instruments, AM3703 is fully backward compatible with previous OMAP™ processors.

spec sheet
Texas Instruments TPS62111 Step-Down Converter

A low-noise synchronous step-down DC-DC converter. Component Max Vin: 17V, 1.5A.

spec sheet
Texas Instruments TPS65950 Power Management

The TPS65950 device is a highly integrated power-management integrated circuit (IC) that supports the power and peripheral requirements of the OMAP3-driven Overo series COMs.

spec sheet
2 x U.FL Antenna with Collar

U.FL antenna with collar for Bluetooth and/or 802.11b/g/n wireless communications.

Wi2Wi W2CBW003C WiFi/BT Transciever

This elegant combination from Wi2Wi, based on Marvell's industry leading 88W8686, enables both 802.11b/g and Bluetooth 2.0+EDR.

spec sheet
Mating connectors
2 x 70-Pin AVX Connector (Male – Overo COMs)

Connect your Gumstix Overo COM to an expansion board with these 70-pin AVX connectors.

spec sheet
2 x 70-Pin AVX Connectors (Female – Overo Expansion)

Connect an Overo COM to an expansion board with these 70-pin AVX connectors.

spec sheet
Hirose 27-Pin Camera Connector (Overo COMs)

Connect a Caspa camera to an Overo COM with this connector (Hirose FH26-27S-0.3SHW)

spec sheet
2 x U.FL Connector

Attach a U.FL Wi-Fi or Bluetooth antenna to a Gumstix system with this connector.

Other connectors
Power Jack

The CUI PJ1-022 power jack is the standard jack for all Gumstix 4.0 V and 5.0 V wall adapters.

spec sheet
USB Mini-B to Standard-A Cable

A USB cable for connecting your USB Console Port-enabled Gumstix system to a development machine or for USB On-the-Go in device mode.

Links to manufacturer's specification sheets are provided for reference.
Comparable parts might be substituted in manufacturing.
Further hardware information (I/O pinouts, Benchmarks, schematics and more)

Supported Software:

  • Ubuntu
  • Yocto Project

The Barebones Wireless Appliance Development Kit ships with a Ubuntu (Linaro) system card.

This image is recommended for beginners looking to get up and running as quickly as possible. Users who need the absolute latest supported version of Linux or more advanced developers may wish to consider switching to the Yocto Project image.

More information on supported software platforms for Gumstix products »

Get started with your Barebones Wireless Appliance Development Kit with these instructions and resources.

Prepare the kit:

  1. Connect the two u.fl antennas to the connectors on the COM.
  2. Insert the system card into the microSD card slot on top of the COM.
  3. Connect the COM to the expansion board by placing it on top of the marked connectors and pressing down lightly. Warning: Do not press on top of the microSD card slot. Doing so may damage the card reader.
  4. Connect the console port to your development machine using the included USB Mini-B to Standard A cable.
  5. Establish a serial connection in a terminal on your development machine.
  6. Connect the power adapter to boot the system.
  7. Configure your wireless connection.

At this point, the system has been configured in its most basic form. You can now power down the system and begin connecting the components specific to your wireless appliance.

The schematic for the Alcatraz Breakout Board can be found at Gumstix Publications.

A detailed reference of all signals available on the Overo series of computers-on-module is available in the System Reference Document

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