Suited for Internet of Things applications, the GS1011MIxS and GS1011MExS from GainSpan Corp., San Jose, CA, are 802.11b low-power Wi-Fi connectivity modules. The GS1011MIxS provides 9 dBm of transmit output power while the GS1011MExS is an extended-range device with transmit power of 18 dBm. Both modules provide UART and SPI interfaces. They are preloaded with serial-to-Wi-Fi firmware with complete Wi-Fi functionality, including security, WPS, and provisioning features running on the module along with the networking stack, and embedded HTTP server, and limited AP capability. Operating temperature range is -40°C to 85°C. Both modules are certified or precertified for FCC, IC, and ETSI.
Small Wi-Fi Modules from GainSpan