Hackberry-Pi_Zero – A handheld Linux terminal using Raspberry Pi Zero 2W

Post by samstave » Sat, Aug 03, 2024, 1:30 AM UTC

teraflop wrote: post #62

diggan wrote: post #59

Earlier quoted context omitted.

I understood it as it'll use only one of the batteries, but you can swap between which is used. So initially, you have two charged batteries, while using only one. Once you run out of power in the first one, you'll switch to the second, and now the first one could be swapped to a fully charged one. Blue/green deployments, but for batteries basically.

It would be convenient if it worked that way, but since the batteries are connected across each other in parallel, they will both be discharged simultaneously. And as soon as you hot-swap one of the nearly-discharged batteries for a charged one, it'll be more-or-less short circuited across its discharged counterpart. To do what you describe, you would need additional components to "switch" one battery at a time into…

Post by teraflop » Sat, Aug 03, 2024, 1:51 AM UTC

samstave wrote: post #111

teraflop wrote: post #62

Earlier quoted context omitted.

It would be convenient if it worked that way, but since the batteries are connected across each other in parallel, they will both be discharged simultaneously. And as soon as you hot-swap one of the nearly-discharged batteries for a charged one, it'll be more-or-less short circuited across its discharged counterpart. To do what you describe, you would need additional components to "switch" one battery at a time into…

I asked the following above - does this work? >> A mid-stream capacitor is holding enough charge for 10 seconds to allow indivdual swapping out -- and also this is meant? to mean that you can swap TWO NEW batteries in without having to shutdown/sleep/power interrupt - thus the 10 seconds.... that dope EDIT: I was imagining the capacitor holds up the whole thing for ten seconds to swap out both bats...

Post by numpad0 » Sat, Aug 03, 2024, 2:49 AM UTC

samstave wrote: post #111

teraflop wrote: post #62

Earlier quoted context omitted.

It would be convenient if it worked that way, but since the batteries are connected across each other in parallel, they will both be discharged simultaneously. And as soon as you hot-swap one of the nearly-discharged batteries for a charged one, it'll be more-or-less short circuited across its discharged counterpart. To do what you describe, you would need additional components to "switch" one battery at a time into…

I asked the following above - does this work? >> A mid-stream capacitor is holding enough charge for 10 seconds to allow indivdual swapping out -- and also this is meant? to mean that you can swap TWO NEW batteries in without having to shutdown/sleep/power interrupt - thus the 10 seconds.... that dope EDIT: I was imagining the capacitor holds up the whole thing for ten seconds to swap out both bats...

Post by IgorPartola » Sat, Aug 03, 2024, 3:09 AM UTC

itintheory wrote: post #89

IgorPartola wrote: post #39

Earlier quoted context omitted.

See I do have a use for this kind of thing, but not exactly. I have a few desktop towers and Raspberry Pi devices that sometimes due to upgrades or random acts of Zeus absolutely fail to boot up. I want some ability to connect a keyboard and a screen to these so I can see the actual boot screen. Normally for me this involves lugging the device to my office and connecting it to my office monitor and keyboard which is…

They make USB KVM devices. Run an application on your computer to send input / receive output. Then you can use whatever laptop you want. That said, I've only used them on Windows, so drivers might be an issue.

Post by F7F7F7 » Sat, Aug 03, 2024, 3:29 AM UTC

swayvil wrote: post #88

The keyboard is the weak link. We need a better voice to text. One that tunes into its user's voice perfectly without getting distracted. And that you can subvocalize at. An optimized spoken language for talking to phones too. Something harsh, insectile and dystopian.