At that size, for that speed, I wonder why wifi was discarded. Depends on the components connecting, I guess, but if each component is custom I imagine adding a small wifi chip to each could be smaller overall?
this post was submitted on 18 Jun 2024
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While it works Wifi isn't great for control. You need a stable connection without jitter.
" High School students missing after the release of an open source product..." or something.
The work is almost all done by integrated circuits, so what they did was basically supply the necessary crystal and caps to get the integrated circuits to work, add what looks like a voltage regulator to regulate supply and route the whole thing on what's almost certainly a 4 layer board.
Also at the speeds we're talking about we're not yet in the domain of having to worry about stuff like the impedance of lines and the signals in absolutelly normal circuit board lines bouncing or getting distorted due to things like impedance mistmatch.
What's impressive here is not the size of the thing (you would be surprised at how stupidly small even very complex functionality is nowadays - stuff like the ~~Blackberry~~ Raspberry Pi-Zero is only as big as it is because of making available so many pins to connect to not because of the actual hardware), it's that this is pretty advanced electronics for high-schoolers even with good teachers, as figuring this stuff out generally involves a lot of datasheet reading unless you're starting from somebody else's design.
Yeah I was looking at it and was thinking the article writer is grossly misunderstanding the device. It looks like it'd be a fantastic item for their use case and it's highly impressive that some high schoolers did that. But it's not exactly a design that will take over for home and enterprise switching.
I assume you meant raspberry pi-zero and not blackberry?
Ah dang, I got excited for a sec. There is a Blackberry Pi project but it's just a Raspberry Pi in the form factor of a Blackberry.
Yeah.
"Blackberry" both felt wrong at the time and my brain kept telling me it was familiar hence it must be right.
Showing my years here ;)
Yeah. I'll admit I got a bit excited at the idea that Blackberry might consider entering the mini-computer market and make a pi-type device.
For the Americans reading - that's 5,88×10-9 football fields
Edit 10^-9
so at leat 4 burgers per bald eagle
Ah, 5.88 nanofootball fields.
Testing superscript syntax: 10^-9^
10^-9^
~subscript~ also ^works^
~subscript~ also ^works^This is awesome, and done by some really talented kids who are clearly smart motivated and willing to put in the work to get this project out the door.
Now imagine if the resources to do this kind of work as well as the background education and things like food security and economic stability were given to kids outside of an exclusive private boarding school? We'd empower some of the most imaginative of us to accomplish so many more amazing things.
Then the poors will rise up, can’t have that. /s
I thought having government funded research was the purpose of NASA and that was then open sourced.
That was before the right made up “public/private partnerships” to hide government handouts to Boeing, defense contractors, drug companies, and Monsanto (or whatever their new name is).
based