Low-power camera reference design streams 1080p video over Wi-Fi

October 12, 2015 // By Graham Prophet
ON Semiconductor, GainSpan and GEO Semiconductor are working on products for emerging IoT markets, combining ON Semiconductor’s image sensors, GEO’s image signal processing technology and GainSpan’s low power Wi-Fi solutions.

A highly optimised IoT video reference design is the trio’s first collaboration. The GS-AR0330-Based Full HD Video, available via GainSpan and its distributors, targets smart 1080p video streaming over Wi-Fi. Through wireless connectivity, it can interface seamlessly with smartphones that use either iOS or Android operating systems. The solution comprises all of the hardware and software needed for engineers to add video streaming capabilities into their IoT-based designs. The video reference design is accompanied by a complete software suite, plus a series of mobile application programming interfaces (APIs).

The design uses ON Semiconductor’s AR0330 1/3-inch optical format CMOS image sensor, that operates in low light conditions. Using its 2304 x 1296 active-pixel array, this device has the capacity to capture 3 megapixel (MP) still images. It also incorporates advanced on-chip camera features, such as column/row subsampling, windowing, mirroring and snapshot modes. The video reference design’s processing resource offers H.264 encoding/compression with a low power multi-mode SoC. This can deal with 1080p high definition resolution image content at 60 frames per second (fps), as well as supporting auto white balance, auto exposure and auto focus functions. By detecting movement, the on-board passive infra-red sensor can be utilised for rapid wake up of the system from standby, so that video streaming can begin.

ON Semiconductor adds, “This allows us to fully capitalise upon the possibilities for video-enabled IoT implementations, in home automation, security, smart lighting, building access and infant monitoring systems.”

ON Semiconductor; www.onsemi.com

GEO Semiconductor; www.geosemi.com

GainSpan (a spinoff of Intel); www.gainspan.com