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@REPLYADDR David Higton <dave@davehigton.me.uk>
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In message 5@dont-email.me>
          candycanearter07 <no@thanks.net> wrote:

> On 9/29/23 10:42, Frank Slootweg wrote:
> > > But that`s what Bluetooth Low Energy (LE) was developed for, quite a
> > > few years ago now.
> > 
> >    Exactly. For example an Apple AirTag works for (more than?) a year on
> > a CR2032 button cell. Quite a "long period of time", I would say.
> 
> Wait, is AirTag a Low Energy device? How does it get range?

It gets range from its transmitter power, whic, according to the
Wikipedia article I read, is 10 mW, which is the same as the lowest of
the classic BT transmitter powers.

It gets its low energy by reducing the proportion of time in which it
transmits, among other techniques.

David
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