Re:The unbearable fussiness of the smart home
by wlesieutre on Wednesday November 24, 2021 @09:18AM
(#29330169)
They're actually not piezo-powered! That's an EnOcean switch module, it's generating the energy from a coiled wire. Clicking the switch loads up force in a spring mechanism and then releases it to move a magnet through the coil.
ArsTechnica has a look inside a similar module in the Hue Tap.
RunLessWire looks to be selling two variants of them, one with the same 2.4 GHz module as above for use with Hue, and another version for on/off circuit control, which would be 902 MHz EnOcean in the US.
ArsTechnica has a look inside a similar module in the Hue Tap.
https://arstechnica.com/gadgets/2014/08/gallery-dissecting-t...
RunLessWire looks to be selling two variants of them, one with the same 2.4 GHz module as above for use with Hue, and another version for on/off circuit control, which would be 902 MHz EnOcean in the US.