General

The WiFly GSX module is a complete, ultra low power embedded TCP/IP solution.  The WiFly GSX module is a stand alone, embedded wireless 802.11 b/g networking module. 

The combination of ultra low power, and the ability to wake up, connect to a wireless network, send data, and return to sleep mode in less than 100 milliseconds, allows the WiFly GSX to run for years on two standard AAA batteries.  Using only 100mW when awake and 10uW when asleep, this remarkable power efficiency makes possible a new class of internet-enabled products.

The WiFly GSX module incorporates a 2.4GHz radio, processor, TCP/IP stack, real-time clock, crypto accelerator, power management, and analog sensor interfaces.  This complete solution is preloaded with software to simplify integration and minimize development time for applications.  In the simplest configuration, the hardware only requires four connections (PWR, TX, RX, GND) to create a wireless data connection.  The transmit range can be up to 330' (100m), depending upon environmental considerations.

Developers will want to use the RN-131G-EVAL evaluation board for prototyping and designing their WiFly GSX systems.  The RN-131G-EVAL kit includes the RN-131G module mounted on a carrier board with status LEDs, power regulation, and a serial link to a PC.

Roving Networks also just introduced their new product, the RN-131C.  This ultra low power, surface mount module has all of the features and capabilities of the RN-131G, but with commercial grade temperature (0C to 70C).  The RN-131C is the perfect choice for those looking for a complete, low power embedded TCP/IP solution in a competitively-priced WiFi module.

Features

• Ultra low power 100mW active, 10uW sleep mode
• Host data rate up to 100Mbps for SDIO, 44MBps for SPI and 2.7Mbps for UART
• Throughput 4Mbps with TCP/IP and WPA2
• UART hardware interfaces
• 10 general purpose digital I/O
• 8 analog sensor interfaces
• Real-time clock for time-stamping, auto-sleep, and auto-wakeup modes
• Accepts 3.3VDC regulated or 2-3VDC battery
• Supports Adhoc connection
• Configuration over UART or wireless interfaces using simple ASCII commands
• Over the air firmware upgrade (FTP), and data file upload
• Secure WiFi authentication WEP-128, WPA-PSK (TKIP), WPA2-PSK, EAP-TLS for WPA1 & WPA2 Enterprise
• Built-in networking applications DHCP, UDP, DNS, ARP, ICMP

Specifications

• Host Data Rate  up to 1 Mbps for UART
• Intelligent, built-in power management with programmable wakeup
• Can be powered from regulated 3.3-3.7V source or 2.0-3.0V batteries
• Real time clock for time stamping, auto-sleep and auto-wakeup
• Configuration over UART using simple ASCII commands
• Telnet configuration over WiFi
• Over the air firmware upgrade (FTP)
• Memory 128 KB RAM, 2MB ROM, 2 KB battery-backed memory, 8 Mbit Flash.
• Secure WiFi authentication WEP-128, WPA-PSK (TKIP), WPA2-PSK (AES)
• Built in networking applications DHCP, UDP, DNS, ARP, ICMP, TCP, sockets
• 802.11 power save and roaming functions