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ZigBee PRO Green Power Chip for End Devices in the Smart Home

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The ZigBee Green Power feature gives battery-free, energy-harvesting devices the ability to join any Green Power enabled ZigBee PRO 2012 network. Without requiring batteries, the self-supporting devices typically generate (harvest) just enough power themselves to communicate a brief command. Now GreenPeak Technologies has introduced the GP410 IEEE 802.15.4 ZigBee Green Power chip, offering the new feature for low-cost energy harvesting and ultra-long battery life ZigBee applications for the Smart Home. The Green Power controller is a fully integrated system-on-chip solution for power harvesting end nodes for light switches, smart home devices, or for applications designed to run on a single battery for many years.

For example, a light switch without a battery harvests energy from flipping the switch on or off. This energy is captured to send the “on” or “off” command to the network to switch on or off the appropriate light. Hence, the light switch is a self-powered device that can be located anywhere in the room without a need for running power wires.

The GreenPeak GP410 features a radio transmitter, an integrated real-time Medium Access Control (MAC) processor, a security engine and a harvester interface. Ultra-low power consumption ensures that multiple (redundant) packets can be transmitted with a small harvester or tiny battery. The GP410 is designed to support both bursting and trickling energy harvesters and is therefore well suited to utilize the energy harvested from flipping a light switch as well as solar powered sensors. The integrated features simplify design complexity. Developers can design low-cost light switch products by using simple PCB antennas that require no shielding. No additional components, such as a voltage converter, are required to design a self-powered end node.

GreenPeak Technologies, San Ramon, CA. (925) 230-6844. [www.greenpeak.com].