"Roger Hayter" wrote in message
...
Rod Speed wrote:

Fredxx wrote
Rod Speed wrote

It uses kinetic energy to send a wifi signal to the base.

You were doing well until this point.

That's what it does. No battery no wires.
https://www.amazon.co.uk/Philips-Per...Synthetics/dp/
B0748MQWP3/ref=dp_ob_title_light

I'd prefer to call it mechanical rather then
kinetic energy, without further information.

It has to be by the kinetic energy of the finger press.

But perhaps he was suggesting that Wifi was not
really an appropriate radio protocol for the purpose?

Zigbee is in fact by far the best approach because not
only does it get repeated by all the bulbs and battery
powered sensors like the motion sensors, it’s a proper
non proprietary standard that lets you use other than
Hue devices on your Hue system.