[Bradford] Thinking of a project

[John Robert Hudson]

Hi Darren

Given its age, where are getting the batteries from?

Also, at the time the advice was not to leave the power plugged in with
the battery inserted but to alternate between draining and recharging
the battery.

John

On Mon, 2025-05-05 at 16:07 +0100, Darren Menachem Drapkin via Bradford
wrote:
>  
> I have a coreboot X200 that keeps zarking batteries, or is it just
> me? -- Darren
>  
> On 05/05/2025 12:16, John Robert Hudson via Bradford wrote:
>  
> > 
> > Hi Bernie and all
> >  
> > 
> >  
> >  
> > That looks an interesting project - I wonder how easy it will be to
> > implement.
> >  
> > 
> >  
> >  
> > I have a number of things to share at the next meeting and, in view
> > of the mention of SystemRescue at the last meeting, I will bring
> > SystemRescue to the meeting.
> >  
> > 
> >  
> >  
> > So, if you have a laptop you want examining - as long as it has
> > power and a working BIOS, even if everything else is dead,
> > SystemRescue will work - bring it along to BCB on the 11th.
> >  
> > 
> >  
> >  
> > John
> >  
> > 
> >  
> >  
> > On Sat, 2025-05-03 at 12:06 +0100, Bernard Czenkusz via Bradford
> > wrote:
> >  
> > >  
> > >  
> > >  
> > > Hi guys,
> > >  
> > > I've found that Raspberry Pi 5 has a ‘low power’ feature plus an
> > > in-built Real Time Clock, which has a ‘wake up’ capability. A
> > > 'Seconds to wake up' value can be inserted into a file which is
> > > read on going low power (Linux ‘shutdown’ but retaining power to
> > > the board). After the given seconds, the board powers up again.
> > > 
> > > This suggests a time lapse project.  I would like to take a mid-
> > > day photo of an apple tree I have, throughout a year, to stitch
> > > in a film showing snow on bare tree, spring blossom, leafing up,
> > > growing apples, falling leaves. But due to the difficulty of
> > > getting power to the garden, I’m thinking of a Solar panel plus
> > > battery with raspberry pi with camera, all boxed up and mounted.
> > > 
> > > So the Pi would be in low-power mode apart from a brief mid-day
> > > on-time for the photo, plus a possible evening on-time period to
> > > give myself a chance to connect and pull down photo’s or do any
> > > changes - hopefully this would make the solar/battery combo
> > > possible.
> > >  
> > > I'll be having a go at a script to do timed power ups/downs, but
> > > I've not given much thought to anything else such as:
> > >  
> > >  
> > >  
> > >  * Solar panel, battery, power management.
> > >  * I should be able to get wifi to the garden, but may need an external
> > >    antenna if the boxing is a problem.
> > >  * Which camera/lens, and its protection: glass covering or naked lens.
> > >  * The physical box and mount.
> > >  * Should the pi monitor voltage, (if possible), provide warnings, auto
> > >    send any data?
> > >  * The RTC can also have a small battery backup in case external power
> > >    fails, probably needed. 
> > >  
> > >  
> > >  
> > > I'd be interested in any suggestions, or if anyone has any
> > > experience with Pi cameras, solar panels and batteries. Perhaps
> > > something to discuss at the next meet?
> > >  
> > >  
> > >  
> > > Cheers
> > >  
> > >  
> > >  
> > >    Bernie
> > >  
> > >  
> > >  
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> >  
> >  
> > 
>  

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