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pi/arduino portable computer

A awesome not really pocket sized but still pretty small portable raspberry pi with arduino project.

brambram
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Portable Raspberry pi computer with 20x4 lcd and a tenkey keyboard.

.

  • 1 × display To make it portable it should be small end use less power. I use a 16x2 character display.
  • 1 × computer It does not matter which computer you take, but in this project I am using a Raspberry pi B.
  • 1 × wood case just wood not to thick

  • added backspace and space

    bram • 12/12/2014 at 13:07 • 0 comments

    Now the keyboard is ready I added the two last buttons that can be accesed by the thumbs. And I am still able to remove the board and buttons.

  • putted together

    bram • 12/08/2014 at 19:28 • 0 comments

    Today I putted the whole thing together.

    1. The main 3.5'' display .
    2. This are the button to control the computer. It is made a bit like the neotype(http://hackaday.io/project/1386-neotype-haptic-computing) project of Paul Beaudet..
    3. This is a arduino pro mini placed to control the buttons.
    4. this is the power part for the rpi it uses 4 aa bateries and a buck converter to convert it to 5v.
    5. The rpi b+ it self it is screwed down with 4 2m screws. The best fiting screws are 2.5m but in the shop were I buy all my screws they told they were pretty rare.

  • prototype 2:

    bram • 07/06/2014 at 07:26 • 0 comments

    EDIT: I ordered the screen now waiting :)

    A few day ago I started rebuilding this projects to make it more portable I made it smaller and I want to use a new screen that is smaller(3.5") and uses less energy(http://www.adafruit.com/products/913). I have almost enough money to buy the screen after that I will make a new update. at the moment I can power it with 4aa batteries maybe I will find an alternative. I am sill thinking about how should mount the screen like a laptop screen or like a gameboy(flat) or maybe somehow else what do you guys think?

    This is how it looks now:

    This is the booster I havet to power the display as soon as I have it:

    some extra pictures:

  • amplifier

    bram • 06/28/2014 at 13:55 • 0 comments

    hmm, I think I burned out the amp. sorry. I think I need to order a new one.

  • programming

    bram • 06/26/2014 at 11:56 • 0 comments

    I am programming a onscreen keyboard so I can type with only a d-pad

    Programmed

    Design 

  • amplifier

    bram • 06/25/2014 at 18:25 • 0 comments

    today I got the amplifier but I can't get it working I will search for what I do wrong.

  • Speakers & amplifier

    bram • 06/23/2014 at 19:19 • 0 comments

    At the moment I'm waiting for the 2 channel amplifier(http://goo.gl/zzhHfm) I bought from opencircuit.nl if I got that I can wire up the 2 speakers in the display case so I got sound from my pi.

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Craig Hissett wrote 10/06/2015 at 15:55 • point

I love this little build - I am building something quite similar!

Are you planning on carrying out  any more work on it?

Please say yes :-)

  Are you sure? yes | no

bram wrote 10/06/2015 at 19:09 • point

No sorry, Or do you want to see a specefic feature?

  Are you sure? yes | no

Craig Hissett wrote 10/06/2015 at 21:17 • point

Ah, thanks for replying! I love how this is out together. Just wondering how far you got with the 3.5" display before swapping to the 20x4?

Also do you have any samples of your code?

  Are you sure? yes | no

bram wrote 10/07/2015 at 15:44 • point

I didn't come far :) I broke the display so I didn't do much with it. What code do you want? I think I deleted it but maybe I do have some code you want.

  Are you sure? yes | no

Craig Hissett wrote 10/08/2015 at 06:29 • point

Ha ha, i never actually managed to get my screen to display anything so you are a better man than me :-)

If you could share how you configured your screen to work with the PI GPIO i would be forever in your debt!

  Are you sure? yes | no

bram wrote 10/08/2015 at 10:42 • point

ha ha. But I didn't use a display with the GPIO but one with composite video output(https://www.adafruit.com/products/913) or do you mean the character lcd?

  Are you sure? yes | no

Craig Hissett wrote 10/08/2015 at 11:16 • point

Ah, so that's how it works! :-)

I have a 3.5" touchscreen (Ebay Chinese purchase) that looks just like this one, but interfaces with GPIO.

I think you have to be a wizard to get it to actually display anything :-)

  Are you sure? yes | no

bram wrote 10/08/2015 at 11:33 • point

Do you have a link?

  Are you sure? yes | no

ben biles wrote 09/17/2015 at 16:07 • point

this will end up being more realiable than half the laptops on the planet :) keep going !

  Are you sure? yes | no

j0z0r pwn4tr0n wrote 12/08/2014 at 08:17 • point
Keep it up, I like what you are doing! I'm currently working on a portable Pi, although I'm just trying to make an emulator box with a screen to take camping. Still, there's a lot of similarities. I want to eventually make a mini Pi laptop, although I haven't finalized any of the design details yet. Anyway, great job! I can't wait to see the end result

  Are you sure? yes | no

YourHero wrote 08/01/2014 at 16:02 • point
Great project hope to see more. I'm in the works of building a pi/ arduino/breadboard laptop myself. I want the main components to be accessible for prototyping on the go.

  Are you sure? yes | no

bram wrote 08/01/2014 at 16:19 • point
thanks, same here want to prototype on the go .

  Are you sure? yes | no

Adam Fabio wrote 07/06/2014 at 04:51 • point
Hi bram! I hope you enjoyed seeing your project on The Hacklet! Thanks for entering The Hackaday Prize! Now that you're a prize entrant, we need a few more updates - don't forget to the video requirements! Good luck!

  Are you sure? yes | no

bram wrote 07/06/2014 at 07:45 • point
Thanks, I am gona make a new video today.

  Are you sure? yes | no

Ryan Aguilar wrote 06/27/2014 at 17:59 • point
Love the build. How are you interfacing the Pi with the screen?

  Are you sure? yes | no

bram wrote 06/27/2014 at 18:13 • point
thanks. I interface it in a very simple way, on there was a av in port so I checked the pin-out and soldered the rca jack of the rpi directly to it :) . the only down side is that every time I boot it up I need to change the video input with the remote :(

  Are you sure? yes | no

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