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Wireless Switches - no batteries needed - piezo powered
Found this when looking for an elegant 8 way switch.
There's a nice picture of a stick-on switch on a tree.....
http://www.enocean.de/indexe.html
Company
EnOcean GmbH develops and commercializes a revolutionary technology=20
that enables radio transmission without batteries or external power=20
supply.
The unique EnOcean Technology was developed in the central research=20
department of Siemens AG in an interdisciplinary environment,=20
consisting of material engineering, ultra low power electronics,=20
sensor and radio technology:
All detectable events cause changes of the energy entropy =96 a button=20
is pressed, temperature changes, or a motor vibrates. This energy is=20
used to supply the EnOcean low power electronics and to generate=20
radio signals.=20
In order to commercialize this innovation globally, Siemens AG=20
together with the inventors in the management-team, has founded=20
EnOcean GmbH in 2001.
EnOcean technology is ecological to a high degree: No batteries are=20
needed, and much less cables are used than normally. Furthermore, the=20
intensity of electromagnetic fields is considerably lower than that=20
of conventional electrical installations, consequence of which is=20
less electromagnetic pollution.
Download: EnOcean - booklet in Adobe Acrobat (PDF) format (250 KB).
Contact
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=20
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