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Printing a handheld PC

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stingraze Page Icon Posted 2021-12-17 11:55 AM
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mikeschn - 2021-12-17 6:36 AM

How about using some symbols for passwords? I've never tried it, but seems like it should work.

For example, the diameter symbol. alt-0216

https://www.rapidtables.com/code/text/ascii-table.html


nice idea.

some systems remove symbols, like for SQL injection etc.

Null symbol should be good... I don't even need to type it. haha
I remember reading once about using symbols that only certain systems have, for example Cryillic. Not sure if I want to do that since it will be hard to get the IME setup just for that occasion.

Edited by stingraze 2021-12-17 11:58 AM
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mikeschn Page Icon Posted 2021-12-17 5:36 PM
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Wow, it's getting harder and harder to design something around a RPI. Because the 4 runs hot, a fan is essential, and even the smallest fan (and heat sink) increases the height substantially. Anyways, just for grins and giggles... here's where the design is at...





(screenshot000038.png)



(screenshot000037.png)



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Ameowli Page Icon Posted 2021-12-17 7:55 PM
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I wonder if you're better off designing around the Compute Module 4 instead of a full fat 4B. Along with the height difference, you could design a carrier board to suit your project rather than having to shape around the existing board. Cooling would be far easier as well since the SoC is (one of) the highest components in terms of height.
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mikeschn Page Icon Posted 2021-12-17 8:23 PM
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Good thoughts... I'll start looking around.

I only do mechanical design... no circuit board design. So I guess I am at the mercy of the 3rd party suppliers out there.

Geekworm had an interesting CM4 Stick

https://geekworm.com/products/raspberry-pi-cm4-stick

Mike...
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stingraze Page Icon Posted 2021-12-17 10:55 PM
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The Geekworm stick looks nice.

I guess your approach of your CAD is similar to the pi-top, which has a Raspberry Pi 3 onboard.
https://www.tegakari.net/2016/05/pi-top/

There's also CrowPi2 as a kit, maybe you can reference them too. It runs with Raspberry Pi 4B and looks a bit like the old Powerbook G4.
https://www.crowpi.cc/collections/crowpi/products/crowpi2-all-in-one...

Bonus:
This is a bit humorous, but very interesting at the same time:

This Guy Made a Computer Mouse That Is Itself a Computer
https://www.vice.com/en/article/d3bnb7/this-guy-made-a-computer-mous...

-stingraze

Edited by stingraze 2021-12-17 11:07 PM
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mikeschn Page Icon Posted 2021-12-18 8:54 PM
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The computer mouse is hilarious. Ingenious but hilarious!

Since my design looks too much like the Pi-Top Laptop, I guess I'll move on...

Anyone for a GRID computer?

http://oldcomputers.net/grid1101.html

https://en.wikipedia.org/wiki/Grid_Systems_Corporation

Mike...

Edited by mikeschn 2021-12-18 9:01 PM




(Grid_computer.jpg)



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joval Page Icon Posted 2021-12-19 1:41 PM
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Hi All,

Take a look at the new RasPi Zero 2W... quad core 1MHz 512Mb yet costs only $15 in a tiny Zero W form factor, has 2,4 wifi, usb, video and hdmi, bluetooth audio, can be under or overclocked, lower power, add Zram and can render youtube ( see Nova-spirit Rpizram easy install)... pretty amazing... runs many hours off cell phone charger battery, etc.

joval...posted on his J72(8)/Devuan+Bxpatch+Zram/WPA/RasPiZero2W/VNC hybrid HPC
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WallyB110 Page Icon Posted 2021-12-19 8:30 PM
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The CrowPI2 kit looks cool, but with everything its about $550. But I really like the idea behind this.

-Walt B
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CE Geek Page Icon Posted 2021-12-19 8:36 PM
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The GRiD: a super-notebook PC with a Pocket PC display. (It's literally 320x240.)
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mikeschn Page Icon Posted 2021-12-19 9:17 PM
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I guess that makes it a handheld PC, eh? ha!

Mike...
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CE Geek Page Icon Posted 2021-12-19 10:06 PM
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More like everything but: too big a device, too small a display.
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mikeschn Page Icon Posted 2021-12-20 11:51 AM
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I will definitely have to check out the RPI Zero 2. Initially I wasn't interested because it didn't have the speed of the full fat RPI4B, but if I treat it like a terminal instead of a desktop OS, it should be fast enough.

I took a quick look at packaging a full fat RPI4B into the Grid form factor and ended up with this...

I didn't model the keyboard yet, but I wanted you to see the keyboard and display to get a feel for the size...

Mike...

Edited by mikeschn 2021-12-20 11:53 AM




(rpi_grid_a.jpg)



(IMG_2393a.jpg)



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stingraze Page Icon Posted 2022-01-25 12:24 AM
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A Raspberry Pi Zero size Coral Dev Board from Google Research (Coral) has just been announced and is ing "coming soon" mode.
Pretty neat.

https://coral.ai/products/dev-board-micro

https://www.cnx-software.com/2022/01/24/coral-dev-board-micro-nxp-i-...

*Image from Coral Website

Edited by stingraze 2022-01-25 12:24 AM




(coral-micro.jpg)



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stingraze Page Icon Posted 2022-02-07 12:54 AM
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I found a very nice project on Twitter by a person called Penk Chen.
Photo from his twitter account.

https://twitter.com/penk/status/1490348496536231940/photo/2

Edited by stingraze 2022-02-07 12:55 AM




(project-penkesu.jpg)



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stingraze Page Icon Posted 2022-05-15 3:20 PM
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Thought this cyberdeck with detachable keyboard is pretty cool. Includes slide connector accessory rail.


https://www.hackster.io/news/this-cyberdeck-features-a-slide-connect...

Edited by stingraze 2022-05-15 3:27 PM
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