How to build a 23″ Android tablet

If you’re looking to build a really big Android tablet the trick is not to start from scratch. [Peter] pulled off a 23″ Android Tablet hack using a collection of easily acquired parts, leaving the hard work up to hardware that was designed to do it.

He didn’t really build a tablet, as much as he built a big touch-screen add-on for one. He already had a couple of inexpensive tablets on hand to play around with. One of them has an HDMI out port, which let him easily push the display onto a 23″ monitor. He knew the tablet was a 4-wire resistive touchscreen, but he didn’t know if other touchscreens with the same number of connectors and be directly swapped and still work. To test this, he cracked open a second tablet device and connected its touchscreen to the first one’s hardware. When he was met with success it was time to source a couple of 23″ touchscreen overlays to test with the external monitor. As you can see in the clip after the break, it works like a charm!

[Peter] was inspired to write about his experiences after seeing the 23″ Android tablet video in our recent links post.

Comments

  1. brad says:

    i’ve always felt that bigfoot was left out of the demographic for tablet sales. i can sleep easy now.

    • N0LKK says:

      Yea; but the Jolly Green Giant might find this to be a bit too small. Me I just want a more affordable 10″ tablet. Preferably with A Linux OS with associated GUI. My reasoning being that there are plenty of Linux apps that I could put to use now.

  2. jconsole says:

    where did you source the 23″ touchscreen overlays?

  3. chaos says:

    I wonder if I could build a coffee table with this?

  4. Rob says:

    Cool stuff. Would be nice if the resolution could be changed.. 1280×600 or whatever the native is on the tablet is nothing compared to what the monitor is capable of.

  5. Liard Nelson says:

    buy a 23″ Touchscreen, buy a tiny Atom Board, install androidX86, done.

  6. mike bradley says:

    this is great for those with sausage fingers. no disrespect to those that do.

  7. Hal H says:

    So, uh, why is the screen inverted on the big screen but the touch is not?

  8. modhappy says:

    Great Now i can type with my stubby Nubbs!!

  9. Matt says:

    If it’s not a tablet, can we please not say “tablet” in the article title?
    I mean, I get it… it drives link clicks, etc., but seriously, if you say in the article text that it’s not a tablet, why is it called a tablet in the headline?

    Otherwise, nice project, for an android touchscreen computer.

  10. ubru bey says:

    nice!:)sharing the knowledge to everyone..thanks!

  11. kevin mcguigan says:

    Yes, where did you source the 23″ touch screen? Where, for that matter, do you source any touch screens?

  12. > Yes, where did you source the 23″ touch screen?

    eBay.

    In the article/blog post referred here I have a section “Ingredients (and where to get or buy)”.

    I list two possible sources you can buy Touch screens on eBay: NjyTouch and VisualTouch. Follow the links and you will get into their online eBay shops

  13. > Buy a 23″ Touchscreen, buy a RaspberyPI when
    > its ready and install Android

    Agreed. Very hyped about the RaspberyPI

  14. Ned says:

    Is there an actual source for the parts? I would love for 23″ Touch Screen Kits to exist, but I think there is no such thing–I wrote to both NjyTouch and VisualTouch and was flat-out told “at present this biggest size is 22 inch.” Are there any particulars that can be shared: part number? brand? SKU? actual source…?

    • It might be my mistake in the screen size (22 instead of the assumed 23 inch). Go with the flow I would say and go for 22 inch 4 wire Resistive Touch screen and 22 inch (21.5) LCD screen.

      I just bought a Samsung 21,5 inch screen for another project/experiment (Sonic Wave Touch screen) for about 130 euro. The screen is more than decent (and better than the one from the video)

      If you have not bought the LCD screen yet, buying a 22 inch would be the simplest line of action.

      Peter

      • Ned says:

        thank you for the reply! it’s a very cool project, and I’m terribly jealous–the tragedy is I already have a 23″ monitor–and I’ve actually been looking for an overlay! So when you noted a 23″ touchscreen kit I was all, “omfg, the holy grail!” (That’s why I wrote the vendors! I had the credit card out and ready! :) Alas, it is not to be. nonetheless, your work is an inspiration. *drop a line if you find a 23″ kit!

  15. Richard says:

    I can see the fun potential for building something like this into a coffee-table and running a retro game on it with conventional game controls.

    What your dupe doesn’t know is that the machine ‘knows’ where somebody put their pint so the game could hide sprites under it to mess with their head…

  16. kurtis kwak says:

    i wonder if this would be possible to do with my broken htc evo 4g. ive examined the digitizer and its much more complicated then the 4 wire, but id like to use a larger screen and the wifi link from my new phone to have a cheap touchscreen car infotainment from my old phone… any ideas?

    I love the build btw, its inspired an obsessive venture into my own project!!

  17. david says:

    i would love this i would have it im my bathroom at the toilet lol surf and crap lol can you make this wireless so the tab was say in the living room and the clone was mounted underneath the kitchen cab? or it was under a cleer worktop

  18. Chris says:

    Brilliant. I was hoping to do something like this with my htc one x+. Any ideas if this is possible.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

Join 96,478 other followers