Compact dual mode Wi-Fi network controller module

January 30, 2013 // By Jean-Pierre Joosting
Murata has announced the SN8200 series of compact low power certified Wi-Fi controller modules capable of providing 2.4 GHz 802.11b/g/n internet connectivity to a broad host of home appliances, industrial automation machines and healthcare equipment.

The self-contained module utilizes Broadcom Corporation’s Wireless Internet Connectivity for Embedded Devices (WICED) architecture to provide comprehensive firmware and software features including a built-in Wi-Fi security supplicant supporting WPA PSK and WPA2 PSK, TCP/IP network stack and a simple network interface card (SNIC) protocol that supports socket connections.

Measuring just 30.5 x 19.4 x 2.9 mm, the SN8200 module is certified to FCC, IC and ETSI wireless standards and is equipped with a STM32 ARM Cortex-M3, an on-board antenna and offers both UART or SPI connectivity to the host application. The ability to support sensor applications is also possible by using the module’s ADC, DAC, I2C and GPIO interfaces.

The SN8200 can operate in either access point (AP) or station (STA) mode. An integrated web server available in AP mode makes target device setup and control extremely easy. Output power is typically +18 dBm when operating in 802.11b mode at 11 Mbps.

The module is ideal for end-product designers wishing to quickly design-in internet connectivity to their product without needing to become involved in designing and certifying their own Wi-Fi transceiver. Using this approach a designer can rapidly add an internet-based control and reporting capability to any smart home appliance or industrial control equipment.