WiFiG25 Module | Low cost Linux Embedded WiFi module
Processor: ARM9 @ 400Mhz on Atmel AT91SAM9G25
RAM Size: 128MB/256MB DDR2
Nand Flash: 256MB Nand Flash
Interface: WiFi, USB Device, Watchdog, 40Pin connertor expand the UART, SPI, I2C, 60x GPIO, A/D, 
System: Linux system, Debian
Board size: 50mm x 30mm

$42    Buy Now

WiFiG25 is a cost-effective System-on-Module (SoM) thought of to drastically reduce the development time needed to design a low-power and low-EMI Linux Embedded device.

The more complex hardware like CPU, RAM, Flash, Ethernet, power and EMI components are integrated on a single SMD component in just 40x40 mm (1.57x1.57 inch) using an complex six layers PCB permitting hardware designers to create their simple and cheap carrier boards.

Main Features

  • CPU: ARM9 @ 400Mhz on Atmel AT91SAM9G25
  • RAM: 128 or 256 MByte DDR2
  • Flash: 256MB Nand Flash
  • WiFi Module on board with internal antenna
  • USB: up to 2 host ports:
    • one hi-speed host/device
    • one full-speed
  • UART: up to 3 serial lines
  • I2C: up to 1 I2C buses
  • SPI: up to 1 SPI buses
  • PWM: up to 6 lines
  • GPIO: up to 27 GPIO lines
  • A/D: up to four channel @ 10 bit

Mechanical Parameters

  • Power supply: single at 5 Volt DC
  • Consumption: see consumption...
  • Line level: TTL 3.3V
  • Temperature range: 0-70 °C and -20 to +85 °C (-I version)
  • Size: 50 x 30 mm
  • Placement for 20×2 pitch 2,54mm (100mils) pinstrip (not included)
  • Weight: 5g
  • PCB layers: 6
  • User configurable led on board

Other features

  • OS boot from Nand Flash or SD card
  • RoHS and REACH compliant.
  • Low EMI.
  • Availability: > 10 years(To 2023)
  • Flat price up to 10K pcs
  • No MOQ


Software Feature

  • Bootloader support(Support update the system by TF Card, USB Disk and Ethernet)
  • Linux kenel version: Linux 3.6.9
  • Buildroot rootfs provided(pre-install in the Nand FLash)
    • DHCP, SSH, Telnet, Test Demo Support
    • The Expand interface demo provide
    • Fully open source firmware, software environments and toolchains available from Atmel sites
  • Debian system provided(Need boot from SD/TF card)
    • Thousands of Open Source applications available from the Debian repositories
    • Almost all programming language available
    • C, Python, Perl and PHP already installed on the factory default microSD for in-board development
  • All the Bootloader/Linux Kernel Source code and system images provide

Development Reference

Quick visual guide to create your own board

Click on the following image to take to see how it's simple to wire external components to design your custom board using WiFiG25.

Evaluation boards and fast prototyping systems

What you have to know before buying CORE9G25 SoM

The CORE9G25 prices are fixed so don't change for hi-volume batch, the follow is the quantity price:

Item Description Temperature Range <1000Pcs Delivery After pay
WiFiG25-128 128MB DDR2 RAM+256MB Flash  0° +70° $42 Two Days
WiFiG25-128-I 128MB DDR2 RAM+256MB Flash -20° +85° $35 Four Weeks
WiFiG25-256 256MB DDR2 RAM+256MB Flash   0° +70° No
WiFiG25-256-I 256MB DDR2 RAM+256MB Flash -20° +85° No

These are the main reasons:

  • WiFiG25 is a Made in China product and you can buy directly it from the China factory so no resellers charges are applied to the final cost
  • Since it is made in-site we can apply the same discount for one or 1K boards because in every case we have to make the board one by one and we have access to hi-volume prices from our provider for components used on it
  • Each order is paid for in advance so you don't have to pay any interest rates
  • You can buy the WiFiG25 on-line using our website or by contacting directly us. We can speak English.

Warranty terms

We make deep functionality tests on any outcoming board and the warranty does not cover boards which have been left out of its original enclosure for a long time (max 10 days) or when the pads are welded (please read the terms and conditions for more details).

Incoming test equipment

If you need to do an incoming quality test before mount the boards, we can provide a copy of our functionality test equipment we using for our outcoming tests contact us for more info and pricing.

Custom boards based on WiFiG25

If you like WiFiG25 but have no time (or skill) to design and produce an OEM device by yourself, please Contact US(support@armdevs.com), we could help you to create your custom project.

Market Mail : market@armdevs.com
Support Mail: support@armdevs.com Sales Phone: +86-755-29638421

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