Posted tagged ‘Wireless Sensor Networks’

Ultra Low Power Wi-Fi for Sensors and Embedded

September 28, 2009

GainSpan is a low power Wi-Fi semiconductor company providing Wi-Fi chips for battery-powered or energy-harvesting-based sensor applications. The products claim to be able to run sensor devices for up to 10 years on a single AA battery. I have never used one of these chips so I’m not sure about the performance or actual power consumption but GainSpan definitely has the right idea…..Smart Low Power Sensors.



Energy Harvesting and Wireless Networks

June 12, 2008

On June 10th 2008, Green Peak Technologies launched a new ultra low power communication controller. The Emerald GP500C is an IEEE 802.15.4 standard compliant chip which is designed to be coupled with energy harvesting devices in wireless sensor networks. The GP500C is a standards compliant communications controller that incorporates a transceiver with a fully integrated communications layer and an on-chip energy manager. The device is able to drive and control the data without being driven by a microcontroller cutting down on overall system power consumption. The GP500C consumes a fraction (10-25%) of the energy of traditional microcontroller based designs and has a system sleep mode of below 100nA. This is a great step forward for developing battery free sensor networks.