MSGID: <-Kx*lEgtA@news.chiark.greenend.org.uk> 504b6b3a
REPLY: <10grtsv$8csu$2@dont-email.me> d71c6f50
PID: PyGate 1.5.1
TID: PyGate/Linux 1.5.1
CHRS: CP437 2
TZUTC: 0000
REPLYADDR theom+news@chiark.greenend.org.uk
REPLYTO 3:633/10 UUCP
The Natural Philosopher  wrote:
> On 04/12/2025 07:52, David Taylor wrote:
> > On 03/12/2025 20:28, The Natural Philosopher wrote:
> >> Anyone have any anecdotal or other wise informatin on pi PICO W and
> >> other pis with wifi being more, or less able to connect with temperature.
> >> I took mine outside and it connected and reported its indoor
> >> temperature, but hasn't reported since. Wifi is on the bleeding edge
> >> (-94dBm)
> > 
> > I've found that Wi-Fi on the Pico W to be dependent on its supply 
> > voltage.ÿ Two A cells isn't enough.
> > 
> I have *three* AAs !  The ultrasonics need nearer 5V.
> 
> It worked fine on my desk here but the signal strength was around -87dBn  ..
> 
> Now it's outside on the far side of a garage I seem to have lost about 6dB.

Do the AAs suffer when the temperature drops?  I recall stories of arctic
explorers having to keep camera/etc batteries close to their skin so they
don't freeze and stop working.

Maybe it's marginal but usable inside and the temperature drop is enough to
tip it over the edge.  Does it work better on a warm day than a cold night?

Theo

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