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1  Screen Tablet malarky / Heyaaaalpppp / Re: Cintiq 21UX with a Severed Cable - Can We Restore It to Working Order? on: May 16, 2017, 05:28:27 PM

take some high-res photos of the right board and one of the 18 input groups

Gladly, but the lighting in my shop is atrocious. I'll haul it upstairs to take some proper pictures before I button it back up, one way or another; I'm also curious what the heck is going on with some of this circuitry.

Can you please clarify what you mean by the "18 input groups"?  Huh

There are 18 identical groups of (most likely) line drivers, preamps and probably either ADCs or multiplexers. the newer wacom boards got this all integrated into one ASIC
2  Screen Tablet malarky / Heyaaaalpppp / Re: Cintiq 21UX with a Severed Cable - Can We Restore It to Working Order? on: May 13, 2017, 02:18:43 PM
Ertew already told you everything that could be said about the connectors but if you still got it open I'd ask you if you could take some high-res photos of the right board and one of the 18 input groups (so you can read the markings on the chips if there are any). I'm interested how they built this as it doesn't seem to use their usual "all in one" asic you can find in the intuos and penabled lines Smiley
3  Screen Tablet malarky / Design issues / Re: wacom emr board from fujitsu tablet how to connect on: April 23, 2017, 11:16:59 PM
Seeing that the Wacom AES tech works similar to the N-trig stylus found in the MS Surface tablets, it is very likely that the electronics aren't behind the screen like with EMR digitizers but in the glass therefore making it impossible to just "swap" it because the screen very likely doesn't have a lot of space behind it and probably is covered in metal like with most modern laptop LCDs.
4  Screen Tablet malarky / Heyaaaalpppp / Re: Wacom alternatives on: April 18, 2017, 12:57:51 PM
Older Wacom digitizers (especially the Intuos 3 series) seem to be available pretty cheaply used (I got an A4 version for 25€ and a A5 version for 20€ some time ago).
As for alternatives there are quite a few but most of which I tried didn't come close to Wacom (I heard some good things about XP-Pen and Huion but I never tried those two).
5  General Category / Forum news / Re: And we're back in the room on: October 01, 2016, 10:27:27 PM
I hope you do regular backups of the server? Tongue
Thanks for fixing the forum Smiley
6  General Category / Who are you? a.k.a WHY CAN'T I POST? / Re: REPLY REQUIRED BEFORE ALLOWED TO CREATE A THREAD on: September 11, 2016, 11:11:32 AM
Hello and I hope this forum hasn't died. The last post in the help section was early this year.

nah. not dead Tongue just a bit slow but here are quite a few people (myself included) who will help you with any problems ^^
7  Screen Tablet malarky / Heyaaaalpppp / Re: Tablet PC digitizer pinout serial on: September 11, 2016, 11:05:40 AM
1.) http://wiki.bongofish.co.uk/doku.php?id=bongofish:penenabled scroll down to the 14-pin pinout.
2.) the wacom tablet has 3.3V logic level serial (also it needs a 3.3V supply! anything else will destroy it) so you will need a max232 or similar chip. using a usb <-> ttl converter is also possible (FT232RL for example)
3.) I have absolutely no idea. I exclusively used mine on Linux where you just have to run a command similar to "sudo inputattach --w8001 /dev/ttyUSB0 --baud 19200" (38400 is also a common baudrate) or setup the right udev rules.

As for the teensy: I worked on porting waxbee from C++ to C with cheap atmel chips (atmega8 and atmega328 to be exact) as target processor using vUSB but I haven't done any of the USB communication yet but I finished porting the wacom serial part. Maybe someone with knowledge of the wacom USB protocol wants to finish it?
8  Screen Tablet malarky / The Trading post / Re: SU-13W02E-03A Any going spare? on: August 28, 2016, 01:54:46 PM
I never tried to connect it using serial but USB definitely worked Tongue
9  Screen Tablet malarky / The Trading post / Re: SU-13W02E-03A Any going spare? on: August 27, 2016, 11:50:54 PM
I just removed the old connector and soldered power and usb lines to it.
After that it was plug'n'play on linux (never tried it on anything else).
[attachment=1]
10  Screen Tablet malarky / The Trading post / Re: SU-13W02E-03A Any going spare? on: August 13, 2016, 09:32:26 AM
raziel (the thread you already found about the 50 digitizers) probably still has some left.
I got 2 from him for basically nothing (iirc 3€ per board plus shipping) a year ago and he said that he still has quite a lot of them left.
If not I could send you one as I don't need them at the moment (if you don't mind that I already connected a few wires instead of the connector and a 3.3V regulator that is ^^)
11  Screen Tablet malarky / Build Logs / Re: DIY 15.6 Cintiq Companion [Design Phase] on: May 29, 2016, 08:39:11 PM
Also the motherboard has a com port on it does that help with the serial interface in anyway?
Not really for the battery controller or the tablet as serial wacom drivers for Windows >7 are virtually nonexistent.
Regarding the battery controller & battery you have the SMBUS lanes (SDA & SCL) somewhere on the motherboard (the 2 pins should also be on each PCIe connector iirc).
It is a bus system so you can connect many different peripherals to the same 2 lines
(each IC has it's own address. Therefore connecting different ICs is no problem but same ICs could be problematic as they have the same address).
In theory this should autodetect your battery controller and show it to the OS via ACPI as laptop battery and it's corresponding controller.
12  Screen Tablet malarky / Tablet Conversion to USB / Re: Announcement : ADB Intuos converter v0.1-beta on: May 29, 2016, 10:18:55 AM
I wouldn't want to slow down a user's USB bus with a 1.1-only device on the bus. (USB: it won't slow down the USB devices transmission speed, but I fear it might affect the USB polling timings -- but I am not 100% sure of that).
Some USB 3.0 are not backward compatible with 1.1 and 1.0 devices so 2.0 only. There are also some embedded devices that have 2.0 port only. For example I cannot use USB-PS2 converters and some old USB devices right on ports.

How to solve that? Use any 2.0 USB HUB. Good hubs can switch any port to 2.0, 1.1 or 1.0 speed. Bad hubs can switch upstream (PC) port to any speed and ALL downstream (devices) ports to another speed. Now I can use V-USB devices and old keyboard via simple and cheap USB hub. Only downside is that whole hub working in low speed. Mass storage devices working, but  Roll Eyes

Last word, some motherboards have onboard hub with same bad design. One slow device (without hub) and rest USB ports are almost useless.
Funfact: USB2 and USB1 devices work perfectly fine on an USB3 hub. I have only one device that doesn't and this is my (pretty old) Canon flatbed scanner but this one doesn't even work with a USB2 hub. It is the only reason I put a USB2 controller card inside my PC Tongue
13  Screen Tablet malarky / Build Logs / Re: DIY 15.6 Cintiq Companion [Design Phase] on: May 29, 2016, 10:12:07 AM
I don't want to ruin your dreams of USB but the bq24725 only has I2C (the bus system used by SMBUS. SCL being serial clock and SDA being serial data).
Your computer should have this bus somewhere on the motherboard and connecting this controller to it should make it visible to the os via ACPI (if you are lucky. if not then there is some configuration of the chipset required).
Also I have to confirm Ertew's statement: Laptop batteries don't just have + and - connectors. at least two of the pins are data (probably I2C too. charging cycles and capacity are stored on an eeprom inside the battery) and most of them require a pin to be pulled to ground to activate the battery.
For example the battery charging and controlling is described on page 43 & 44 of this document: http://ftp://helpedia.com/pub/temp/uploads/ala_borbe/ACER/Compal%20LA-8241P%20QCL00-QCL20.pdf
(The diodes and resistors directly at the connector are for ESD protection)
14  Screen Tablet malarky / Build Logs / Re: DIY 15.6 Cintiq Companion [Design Phase] on: May 26, 2016, 09:15:24 PM
For battery charging you could take a look at the novena open hardware laptop. they have some pretty cool circuitry there and use standard LiPo batteries used for RC vehicles (high capacity, low weight and very cheap to get).
15  Screen Tablet malarky / Build Logs / Re: DIY 15.6 Cintiq Companion [Design Phase] on: May 26, 2016, 06:12:42 PM
What CPU and CPU cooler do you intend to use? This motherboard takes CPUs up to 95W TDP which is a lot for the planned dimensions...
Maybe you could try to use the cooling solution of an older "Gaming" laptop?
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