I was thinking about the Pyra and about when society collapses. We're getting solar panels with accu to store electricity but I need a device which I can use to play rogue on when society collapses. I was thinking that maybe a 2 RAM Pyra would be better due to it having less power consumption while rogue is being played on it. But I'm not sure how much the difference is. Is there any information about Pyra power consumption? Will it also be possible to underclock the Pyra in order to save power?
My first thought would be: Is power consumption by RAM a problem?
It might be a small issue for having the unit run on idle for long periods but when the Pyra is in use the RAM isn't the largest consumer of power.
Having the LCD backlight use a bit less power probably already negates the RAM power usage, then having more RAM is probably better as you can't add some more RAM when you need it while you can still produce some more energy.
Here is an older report for power consumption in a mobile phone:
As you can see the RAM is probably not the largest consumer of power in a mobile device.
If society collapses your first problem will probably be water and food. If you have this arranged already you might be able to stay at home, then large solar panels with a battery would be handy to have electricty in your house.
When you can't stay in your house anymore and you need to always travel to get to water and food a Pyra would be good as you need to be mobile.
Then you probably want to have some foldable solar panel and a good portable battery (while charging the Pyra directly from solar panels would be more efficient, you can by default also load the battery as it can hold more charge). You want a backpack with a compartment that can resits water (for rainy times or accidents with water).
You can buy backpacks with solar panel and battery, like this one: <amazon> /Voltaic-Systems-Converter-Backpack-Battery/dp/B00CIYAFJW/
If there isn't much sun in your area you can always buy one of these cheap usb-hand chargers:
https://www.aliexpress.com/item/4000699586374.html
And if you need to travel at night, you can use a usb flashlight, something like this:
https://www.aliexpress.com/item/4000803651173.html
You might want to add some Lora part to your backpack, so you can communicate over larger distances with travel companions.
Something like these:
https://www.aliexpress.com/item/4000059708434.html
You could connect your Pyra over wifi and have messages send over Lora from backpack->backpack.
In your backpack you could also use a water-filtering bottle like the life-straw one, so you can get drinking water more easily:
https://www.lifestraw.com/products/lifestraw-go
Obviously you might want to pack more stuff like a pocket knife, small poncho maybe to keep you dry.
If you want to take some tech with you it could be the TS80 soldering iron to use with your faster-charging powerbank, to repair electronics on the go:
https://www.aliexpress.com/item/32904641235.html
*I haven't tested any of these products, so I don't recommend any of these from personal use.
Back to the RAM discussion: I would always get the 4GB RAM version. Because you can't add more RAM later, upgrading to a different board is more expensive then buying it directly.
It's also easier to produce. And as most people get the 4GB version it's the version that is most likely to work best. Look to the Pandora: most stuff works on the 1GHz version and first batch has most issues with released applications.
At start the 2GB was proven to be working and the 4GB had issues, but since then those issues are resolved if I'm correct. The only valid reason I see now to get the 2GB version is money, as it's a bit cheaper.
