[Bradford] Thinking of a project

[Darren Menachem Drapkin]

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
>>
>>
>>
>
>
-- 
Yours &c.
Darren Drapkin
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