Wandboard notebook

Show or tell us what you are doing with your wandboard!

Wandboard notebook

Postby jury093 » Tue Feb 10, 2015 8:28 pm

Hi all!
This half success project (wandbook) is my home hobby.
I got old notebook (LG P1 with broken Nvidia) and use only box, lcd screen (lvds + dc/dc backlight), fan (and heat tube), keyboard, speakers. Of course, original leds, buttons, external and internal connectors from old motherboard for design new pcb..

Image

Hardware:
Heart of the system - wandboard imx6q som (4 cores, 2GB, wifi/bt, uSD)

On new pcb (4 layers) I place:
power manager and charger circuit (SBS compliant) for charge NiMh (or LiON) and powering all board system and external peripheral devices
connector for accumulator battery - I try use old construction, but new gas gauge chip, because old bq20z80 sealed
4 ports usb HS hub - 3 port for external connectors and 1 for stm32f105 on board
rtc with battery
thermocontrol chip with fan control
I can't buy sgtl5000 and replace to tlv320aic23
stm32f105 for ps/2 touchpad service (original device at upper cover of oldbook)
atmega128 for keyboard service (original of oldbook)
miniPCIE connector
SATA connector
usb, ethernet, lvds connectors
nand
rgb24 connector
usb console FTDI chip based
connector for expander PCB

expander PCB (homemade, 2 layers) is:
hdmi connector
SD connector (SD1 port wandboard)
miniusb connector for console ttymxc0
one usb port (from usb hub)
reset button
db9 (to stm32f105 uart)

for future use is reserved:
one usb port from wandboard som
connector with outputs gpio expander, ttymxc2(?, maybe gps receiver) and i2c

Software:
Debian/Ubuntu
wandboard som working perfectly - "works - do not touch!" :)
screens:
- lvds (1280x800) - working
(backlight working with pwm fine)
- rgb24 (800x480) - work
- hdmi(1920x1080) and dvi(1280x1024) - working on native carrier board
sound:
- aic23 - working
termocontrol:
- measure temperature and fan speed - working
usb hub:
- working
stm32:
- custom NUTOS device (ttyACM) - working
- reflash by dfu-util in system - working
atmega128:
- custom firmware - scan keyboard matrix and i2c slave to IMX6. I write maket - scan 4x4 matrix and linux driver - working
Need rewrite to 13x8 matrix keys..
- reflash by my modification avrdude (spi over gpio) in system - working
miniPCIE:
- intel-4965agn wifi - working
SATA:
- SSD Kingston (60GB) - working
ethernet:
- strange result - no 1000mbit handshake, only 100fd. I use part of old pcb with transformators (no have documentation) and low profile rg45 - halfworking
But, for carrier board work fine 1000mbit!

Android (no mainstream for me):
4.3:
wandboard som - working
lvds with backlight - working
usb, rtc
GUI working , GAPP installed and get apps from GoogleApps over WiFi
4.4:
very unstable GUI, freeze screen or dark.

Good luck!

I replace pixs to google storage..

Image

Image
Last edited by jury093 on Fri Aug 07, 2015 9:21 pm, edited 1 time in total.
jury093
 
Posts: 59
Joined: Fri Feb 06, 2015 10:41 am
Location: Sankt-Peterburg, Russia

Re: Wandboard notebook

Postby fLo431 » Fri Aug 07, 2015 6:24 am

Hi Jury

Sounds interesting, unfortunately I can't see the pictures.
Whats the size of your designed board?

You are still working on it or is it finished?

BR
fLo431
fLo431
 
Posts: 20
Joined: Thu Jun 18, 2015 5:22 am

Re: Wandboard notebook

Postby jury093 » Fri Aug 07, 2015 9:47 pm

fLo431 wrote:Hi Jury
Sounds interesting, unfortunately I can't see the pictures.
Whats the size of your designed board?

Hi fLo!
I replace pictures to google photo service. You can see now?
main pcb have size 12x12cm (4.8" x 4.8")

You are still working on it or is it finished?

this project not finished, because is hobby for my soul :)
It was the launch of the keyboard (original keyboard matrix->atmega128->imx6q->driver->kernel)

From old battery I get only original box. Old accumulators is bad and bq20z80 is sealed and can't clear "Permanent Fails" for replace to new accumulators.
Then I design new pcb and use bq40z50..
On the picture (up - old acc pcb, down - my design for replace):
Image
and pack to old box:
Image

PS My English is very bad.. sorry :)
jury093
 
Posts: 59
Joined: Fri Feb 06, 2015 10:41 am
Location: Sankt-Peterburg, Russia

Re: Wandboard notebook

Postby fLo431 » Wed Aug 12, 2015 11:03 am

Wow!
Great Jury! I can see your pictures now and it looks very interesting.

So you started to learn about Keyboard Matrix -> uCOntroller -> driver. Nice!

Thanks for sharing! I hope you post from time to time some updates on your status.
Looks great! Thanks for sharing!
fLo431
 
Posts: 20
Joined: Thu Jun 18, 2015 5:22 am

Re: Wandboard notebook

Postby jury093 » Fri Sep 04, 2015 2:38 pm

other side of main pcb:
Attachments
wand04-IMGP0029.jpg
wand04-IMGP0029.jpg (91.93 KiB) Viewed 2320 times
Last edited by jury093 on Tue Sep 15, 2015 10:01 am, edited 2 times in total.
jury093
 
Posts: 59
Joined: Fri Feb 06, 2015 10:41 am
Location: Sankt-Peterburg, Russia

Re: Wandboard notebook

Postby fLo431 » Tue Sep 08, 2015 5:58 am

Nice work. Looks like very experienced routing ;)

Any special reason for the form of the PCB? I mean it has a lot of corners and shapes. i would make it like square.
But very nice!

Thanks for sharing your progress!
That keeps me encouraged to find some more time and keep working on my Wandboard too :)
fLo431
 
Posts: 20
Joined: Thu Jun 18, 2015 5:22 am

Re: Wandboard notebook

Postby Tapani » Thu Sep 10, 2015 7:58 am

Nice job, this is a cool project indeed :-)
Tapani
Site Admin
 
Posts: 686
Joined: Tue Aug 27, 2013 8:32 am

Re: Wandboard notebook

Postby jury093 » Sat Sep 12, 2015 1:25 pm

fLo431 wrote:Nice work. Looks like very experienced routing ;)
Any special reason for the form of the PCB? I mean it has a lot of corners and shapes. i would make it like square.
But very nice!

thanx :)
this photo original pcb:

oldnote-IMGP0001-corr.jpg
oldnote-IMGP0001-corr.jpg (153.93 KiB) Viewed 2320 times


red lines to ponts of mount holes. I need fix my pcb in box
blue contour - minimal place in my project
yellow - interfaces sockets in fixed place

no chance to make the square pcb - physical conflict with fan, accumulator and other metal parts..
Last edited by jury093 on Tue Sep 15, 2015 10:03 am, edited 1 time in total.
jury093
 
Posts: 59
Joined: Fri Feb 06, 2015 10:41 am
Location: Sankt-Peterburg, Russia

Re: Wandboard notebook

Postby jury093 » Sat Sep 12, 2015 1:35 pm

Tapani wrote:Nice job, this is a cool project indeed :-)

thanx :)
slowly doing an interesting project..
preliminary:
wand-plan.jpg
wand-plan.jpg (164.32 KiB) Viewed 2320 times


connect upper cover (right side have phones sterejack, front have 4 leds (2 - charge/ext power, 2 - gpio controlled)):
wand-up-IMGP0044.jpg
wand-up-IMGP0044.jpg (45.77 KiB) Viewed 2320 times
Last edited by jury093 on Tue Sep 15, 2015 10:10 am, edited 2 times in total.
jury093
 
Posts: 59
Joined: Fri Feb 06, 2015 10:41 am
Location: Sankt-Peterburg, Russia

Re: Wandboard notebook

Postby jury093 » Sat Sep 12, 2015 1:50 pm

preliminary with main pcb hw 1.0:
wand-1st-IMGP0022.jpg
wand-1st-IMGP0022.jpg (95.06 KiB) Viewed 2320 times


replace heatsink to main pcb hw 1.1:
wand-2sd-IMGP0026.jpg
wand-2sd-IMGP0026.jpg (89.56 KiB) Viewed 2320 times


wandboard inside:
wand-pre-IMGP0034.jpg
wand-pre-IMGP0034.jpg (68.31 KiB) Viewed 2320 times
Last edited by jury093 on Tue Sep 15, 2015 10:09 am, edited 1 time in total.
jury093
 
Posts: 59
Joined: Fri Feb 06, 2015 10:41 am
Location: Sankt-Peterburg, Russia

Next

Return to Showcase and success stories

Who is online

Users browsing this forum: Google [Bot] and 3 guests

cron