Posted tagged ‘Wierless’

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.

GainSpan

GainSpan

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Low Power RF transceiver for Zigbee and ISM

April 1, 2009

Atmel has released a new RF transceiver for low power wireless applications. The AT86RF212 800/900MHz IEEE 802.15.4 radio has a receive mode current consumption of 9mA and 17mA in transmit mode with a power output level of 5dBm. The sleep mode current consumption is down to 0.2µA. The AT86RF212 performs extremely well, initial field test showed about a 6km link without the use of any external LNA’s or PA’s. A wide range of data rates are supported. In addition, security is handled by an AES 128bit onboard hardware engine. Atmel has created some common firmware solutions making it easier and faster to develop new applications. Take a look at the datasheets for full specs:

AT86RF212