iPhone RF Energy Powers Wireless Sensor

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This video demonstrates the use of a standard iPhone in 2G/GSM mode to generate RF energy that is used to power a battery-free wireless sensor node. The sensor node is part of Powercast’s Lifetime Power(TM) Energy Harvesting Development Kit for Wireless Senors (P2110-EVAL-01), the receiving board is based on the P2110 Powerharvester Receiver, and the antenna was slightly modified from it’s original tuning for 915MHz. The wireless sensor node was designed by Powercast and Microchip for ultra-low power operation. At a distance of 2 feet from the iPhone packets are transmitted from node every every 1-2 seconds. As this video shows, mobile phones can be a practical, portable source of wireless power for a wide range of applications.

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