please choosego to mobile | Continue to access the PC version
Author: gaara

17' tablet (OPi normal)

[Copy link]

17

threads

212

posts

1420

credits

Gold member

Rank: 6Rank: 6

credits
1420
 Author| Published in 2015-6-16 16:29:45 | Show all floors
Ok, some photos !
The IPS screen works with my Raspberry Pi, not tried with Orange.
For the case, the photos can speak themselves. The first work is to hack the interface card to add sound volume, switch on /off etc


This thread contains more resources

You need to Log in to download or view,No account?    Register

x

3

threads

84

posts

274

credits

Intermediate member

Rank: 3Rank: 3

credits
274
Published in 2015-6-17 01:31:07 | Show all floors
Very nice so far, im glad it is working out for you!

17

threads

212

posts

1420

credits

Gold member

Rank: 6Rank: 6

credits
1420
 Author| Published in 2015-6-17 14:41:43 | Show all floors
Yes, I hope it will work. If I have space I will add a little fan but I think all will be full...

17

threads

212

posts

1420

credits

Gold member

Rank: 6Rank: 6

credits
1420
 Author| Published in 2015-6-18 18:24:28 | Show all floors
First try with the IPS screen: no problem
Now I'm waiting for a DVI / HDMI adapter (the screen interface has not HDMI) and a 30 pin extention cable (eDP).

This thread contains more resources

You need to Log in to download or view,No account?    Register

x

1

threads

4

posts

100

credits

Registered member

Rank: 2

credits
100
Published in 2015-6-18 18:59:03 | Show all floors
Edited by vbnz at 2015-6-18 19:02

Amazing project!

What type of batteries do you use in your project?

17

threads

212

posts

1420

credits

Gold member

Rank: 6Rank: 6

credits
1420
 Author| Published in 2015-6-18 21:05:23 | Show all floors
Edited by gaara at 2015-6-18 15:07

Thanks !

It's a power bank which can delivery USB@5V for the OPi and 12V/19V for the screen. In fact, 19V when the charger is plugged and 12V if it not plugged.
There are 6 cells, 3x2 pairs. I don't know the real capacity of the battery, saled as 42000 mAh but I've doubts it's true.
I'm using a stepdown 19V->12V to reduce the voltage when the charger is plugged.
I can keep the desktop about 4h30 working, but I've not tested with games or with internet browser. Maybe less.

I have just removed the power bank's case and set the PCB in my case, with longer wires.

17

threads

212

posts

1420

credits

Gold member

Rank: 6Rank: 6

credits
1420
 Author| Published in 2015-7-11 00:40:03 | Show all floors
Edited by gaara at 2015-7-10 19:13

Some news

A lot of work, not finished yet...
I have many problems to solve, so many modifications are made compare to the beginning. I must to create place for the screen, I don't want it brings out from the case.The touchscreen is a little thick... (I'm looking to buy a multitouch, I should be verrrry better than a simple touch...)

I have added one tiny fan, 2 pieces was ordered but no  place to put the second one.
This (or maybe theses) fans will be driven by an Arduino mini, according to the temperature of the case. (helped with this tutorial). I'm waiting for the electronics parts.
For the sound, 4 speakers: 2 for the bass and 2 for the voices. The sound system is not a wall of sound but it's pretty cool, better than my laptop
Just one thing: I must add a sound filter before the ampli because there's some noise when I move the mouse.

I was forced to change the usb hub, because the original (from the fan case) wasn't alimented. So now I can plug one mouse and one keyboard without problems. I havn't try other device, I hope gps will work.
Still waiting for a longer EDP cable, so I can't put the screen. A short VGA cable is also in the plane...

Here a photo. It looks like complicated but it's very simple, just many wires...

By the way, the CR032 is NOT a CR032. It's a rechargeable battery, ML2032

This thread contains more resources

You need to Log in to download or view,No account?    Register

x

17

threads

212

posts

1420

credits

Gold member

Rank: 6Rank: 6

credits
1420
 Author| Published in 2015-7-11 00:47:51 | Show all floors
Edited by gaara at 2015-7-10 19:15

the fan ----------- the screen board (transistor) is very hot, more than the SoC. That's why I have placed it here.

This thread contains more resources

You need to Log in to download or view,No account?    Register

x

17

threads

212

posts

1420

credits

Gold member

Rank: 6Rank: 6

credits
1420
 Author| Published in 2015-7-11 00:57:59 | Show all floors
SD card slot and general ON/OFF

This thread contains more resources

You need to Log in to download or view,No account?    Register

x

17

threads

212

posts

1420

credits

Gold member

Rank: 6Rank: 6

credits
1420
 Author| Published in 2015-8-3 00:02:14 | Show all floors
Hi all,

I have decided to go ahead with this project. As I know, no similar project exist, and now it works fine with my OPi. I have some improvements to do for the sound, but the prototype works fine.
So, if you're interested, you can like this page: https://www.facebook.com/diskiopi?ref=aymt_homepage_panel

I will give some news in this page now: photos, videos, compatibility...

Thanks Steven and for your work, even if OPi 2 is not fully operational, and good luck to the others members of this forum.
You need to log in before you can reply login | Register

Points Rule

Quick reply Top Return list