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pi/arduino portable computer

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

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This project was created on 06/22/2014 and last updated 2 months ago.

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

Project logs
  • added backspace and space

    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

    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( 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:

    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( 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:

View all 7 project logs

Enjoy this project?

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?

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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?

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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.

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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!

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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( or do you mean the character lcd?

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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 :-)

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

Do you have a link?

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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 !

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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

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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.

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

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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!

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

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Ohm's Claw wrote 06/27/2014 at 17:59 point
Love the build. How are you interfacing the Pi with the screen?

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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 :(

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