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1  Screen Tablet malarky / Heyaaaalpppp / Re: Pen for my UD-1212-R seems broken... on: June 19, 2018, 05:50:31 PM
Teky, You have working pad and compatible working pen. Next You have UD-1212-R that can't see pen.
There are two possible problems. Your UD-1212-R may be broken but I think that the pen You use isn't compatible with UD-1212-R. There are many different pens and they are compatible with specific tablets, not with all tablets available. You need to search for specific pen or try out few old pens. Hope Your tablet is working and You can find working pen.
2  Screen Tablet malarky / Heyaaaalpppp / Re: Need a schematic and pin out for a Wacom SU5E-12W32AS-01X on: April 18, 2018, 11:46:17 PM
Open Arduino IDE, grab any example sketch (blinking one) and upload it to Your board.
If You cannot do that, You're doing it wrong or have broken board. Both problems cannot be resolved by me remotely.
If You have no problems with writing any example sketch, turn on "verbose mode" and upload it again. You'll able to copy whole command from ardiuno IDE console and run it from terminal window.

If that way works, then use hex file generated by WaxBee rather than one generated by Arduino compiler.
3  Screen Tablet malarky / Heyaaaalpppp / Re: Need a schematic and pin out for a Wacom SU5E-12W32AS-01X on: April 18, 2018, 01:29:02 AM
As I wrote. ProMicro comes with (ugly) bootloder. You can use that bootloader. You should:
- connect Pro Micro to USB port
- wait 10s
- grab spare wire and short two pads on the board: GND and RST. But it's not as simple. You should simulate button and do a double click within less than a second. That forces boart into bootloader mode.
- wait for drivers installation.
- find what COM port are assigned to Your board.
- on Windows open terminal and send command as acediac wrote on forum:
avrdude -v -patmega32u4 -cavr109 -P\\.\COM4 -b57600 -D -Uflash:w:gd-0405-r.hex:i
where "gd-0405-r.hex" is the name of the hex file and COM4 is Your COM port.
That should program Your board with generated firmware file.

btw, I need to place avrdude.exe, avrdude.conf and firmware.hex in same directory and enter that dir by the terminal.


Yes, You can use serial->USB converter and use old serial drivers. That works on Win XP or on Linux. I can help You with XP. For linux, please search on Your own (google doesn't hurt) or ask any Linux guy for help.
4  Screen Tablet malarky / Heyaaaalpppp / Re: ThinkPad's EMR pen and Wacom's UD tablet on: April 18, 2018, 01:06:30 AM
There are tree types of EMR pens on the market. Plus Wacom changes main resonance frequency for EMC issues, radio frequency usage and maybe to cut backward compatibility.

Analog Wacom pens have LC circuit. Coil somehow detects pressure - IMHO compressing cell's core changes inductance and shifts resonance frequency. Capacitor are divided into standard SMD part and trimer part. This allows to fine-tune resonance frequency. I think that tablet detects resonance frequency while hovering pen and that freq. is temporary stored as "zero pressure" freq. Hence pens can be coarse tuned and tablet doesn't care much about that.
I think that resonance frequency also indicates button status and/or eraser. Buttons adds extra capacitors (and trimmers) to the LC circuit hence shifts oscillation freq.

Different analog pens (i purchased few "galaxy note" pens from china just for fun) uses two parts coil. One part have winding and stationary core (as in Wacom pens). Second part is just a extra piece of coil core (no winding) that can be pushed towards main coil. This changes inductance and detects pressure.
My pens can be used as nice point&click devices for ISDv4 TabletPC digitizer. Pressure sensitivity seems work but curve is really strange, making this really useless. The pen is OK only for navigating through GUI, much better than my finger Smiley
Important notice. In that pens, tip moves about 1mm by pressing pen to tablet surface. In Wacom pens, tip doesn't move at all, just react to pressure, like pencil.

Last type I know, but never played with them should be called "digitalized" pens. As far as I read available information, that pens have same LC circuit for pressure sensitivity but also have digital chips that sends own ID number through coil to tablet. This allows tablet to detect different types of pen and assign different settings for each pen. I'm not sure how the buttons works in that type of pens. They can be handled by chip (digital way) or by switched capacitors (analog way).


Quote
tilt is also good.
X41T pens have tilt? Wow i had no idea, the X61T ones dont have it. It also appears the X41T pen has two buttons instead of 1 - do they work?
Tilt is not detected by the pen, I think, but rather by the tablet so, if the tablet sees the pen at all and it has Tilt detection (the UD have it) it seems reasonable.
Yep, tilt must be a digitizer (tablet) thing. Maybe construction of a pen plays role in that but pen is not the key.
BTW, i heard that some tablets detects and reports distance of hovering above the surface. It's true or just a speculation?
5  Screen Tablet malarky / Heyaaaalpppp / Re: Need a schematic and pin out for a Wacom SU5E-12W32AS-01X on: April 18, 2018, 12:20:41 AM
Hello.
You shouldn't run Aurduino IDE, it can't help You. However drivers for Pro Micro and AVRdude software (can be found inside Arduino directories) will help You a lot.
With new WaxBee releases You can generate Your own .hex file that should fit into Pro Micro flash along with stock bootloader. As I mentioned in different topic, You can use external programmer to upload hex file into Pro Micro or use stock bootloader that should work out of the box.
Check this: http://forum.bongofish.co.uk/index.php?topic=2556.msg22225#msg22225
First post (first page) shows how to create firmware file. Last 3 posts shows command to program Pro Micro using AVRdude. You need command-line-console (CMD) and location of AVRdude.exe to do this.
6  Screen Tablet malarky / Build Logs / Re: Fujitsu T5010 - utilize screen from Tablet-PC on: April 18, 2018, 12:09:48 AM
Hello.
Thanks to write anything in my topic. This sends me email notification that You need a help.
However this topic is all about my build and I don't want to mess here. For help about burning firmware into AtMega32u4 please read this topic and ask here if You have any questions: http://forum.bongofish.co.uk/index.php?topic=2556.msg21860
7  Screen Tablet malarky / Heyaaaalpppp / Re: Having trouble with a Wacom digitzer pulled from an old tablet PC on: December 10, 2017, 04:47:58 PM
If possible, purchase Teensy in 3v3 or 3.3v version. If not, purchase separate 3.3V LDO (low dropout voltage regulator). Here are instruction how to install that regulator: https://www.pjrc.com/teensy/3volt.html

Teensy can run either from 5V (USB), 3.3V (external supply) or 3.3V (USB + soldered LDO) but digitizer can run only on 3.3V. Connecting them to anything higher than 3.6V may destroy them permanently (not tested yet Wink ). On board 3.3V voltage regulator is much simpler than external one.

I chose external one because Pro Micro doesn't have place for internal one.
Here are my build log (missing pics): http://forum.bongofish.co.uk/index.php?topic=2562.0
And here are translated version with pics: https://www.elektroda.pl/rtvforum/topic3338654.html
8  Screen Tablet malarky / Heyaaaalpppp / Re: Having trouble with a Wacom digitzer pulled from an old tablet PC on: December 09, 2017, 01:51:06 PM
Clamp meter can measure current only. You need classic meter with two probes.
The best way I found is to attach negative meter input to metal shield of any connector (USB, VGA, etc.) then touch each pin (separately) with positive meter probe and read voltage.

For negative meter input I prefer to put meter probe in VGA screw or unscrew it and use that screw to mount copper wire. Here example photo with removed screws: https://www.canford.co.uk/Images/ItemImages/large/44-103_01.jpg just use force and twist that screw. It's designed to be unscrewed if need.
9  Screen Tablet malarky / Heyaaaalpppp / Re: Having trouble with a Wacom digitzer pulled from an old tablet PC on: December 08, 2017, 05:57:47 PM
Hello.
Does the M400 working? I mean boot to OS and pen working?
If M400 still working, please check voltages on each pin (each wire). I'm worried about pin 1 (left blue wire). Manufacturer need to add that wire so there are risk that digitizer may not work without it.

If we forget about pin 1, connector looks like standard "14-pin" as described here: http://wiki.bongofish.co.uk/doku.php?id=bongofish:penenabled
You need pins 9 (RXD), 10 (TXD), 13 (3v3), 14 (GND). Pins 7, 8 and 12 are mostly useless. Pin 11 can be use just for fun (connect LED that shines when digitizer detects pen).

If You wish to use this digitizer with Linux, You can use USB->serial converter. If You want to use this digitizer across many platforms, WaxBee converter is the only working solution.
More info about WaxBee can be found on this forum.
10  Screen Tablet malarky / Tablet Conversion to USB / Re: WaxBee Feature Requests on: November 11, 2017, 09:35:38 PM
I just found a problem in intuos5 template. There may be bug in template, WaxBee firmware or drivers itself. Full story below.

I migrated my WaxBee tablet from intuos2 to intuos5. To do this I chose right template, set "serial input" same as on my working intuos2 template, upload firmware and have great surprise.
Only upper-left quater of tablet working. Right half and bottom half sends cursor to the edge of screen. Very strange.
Next I chose diagnostic option build in Wacom drivers. This shows me that screen respond perfectly in mm but drivers scaling data, actually doubling input value. More funny I can actually fix this by option "chose area of tablet". But clicking on edges gives me one marker at edge of active area of the tablet and next 3 markers far beyond tablet. Pretty funny.
Solution: set exactly half values in "USB tablet max coordinates" in WaxBee configuration editor. But why these values doesn't match?
Wacom driver version 6.1.7-3

Working template attached.
11  Screen Tablet malarky / Heyaaaalpppp / Re: dropped 21UX 2nd gen not responding to stylus. on: August 25, 2017, 03:45:40 PM
As I wrote on Drewid's topic:
One more thing. This digitizer contains two boards and flat flex to connect them.
You show active board (lot of chips) but not passive board (antennas). Flat cables shouldn't cause problems, but connectors at both ends may.
12  Screen Tablet malarky / Heyaaaalpppp / Re: Guess who :) on: August 25, 2017, 03:40:09 PM
One more thing. This digitizer contains two boards and flat flex to connect them.
You show active board (lot of chips) but not passive board (antennas). Flat cables shouldn't cause problems, but connectors at both ends may.
13  Screen Tablet malarky / Heyaaaalpppp / Re: dropped 21UX 2nd gen not responding to stylus. on: August 16, 2017, 10:39:51 PM
As I see, digitizer board have two main chips and strange connector to LCD board.
First chip, lets say USB chip, working fully or partially. USB and buttons working. Communication with second chip may be broken.
Second chip, let say Digitizer chip, may be broken or waiting for signal from display controller.

IMHO both boards may need repair.
14  Screen Tablet malarky / Heyaaaalpppp / Re: Guess who :) on: August 16, 2017, 09:57:45 PM
Hi.

As You can (cannot) see, single broken solder joints cannot be fixed because You cannot see the problem.
If there are soldering problem I will try to locate what section are responsible for 2cm gap, then use hot air for resolder many components, including two biggest chips. You can easily found guys with hot air at laptop/consoles service point, maybe at phone service point too.

Alternative way - try freezing spray (or compressed air can applied upside down) and hair drier. Maybe hot or cold temperatures temporary fix problem so You can narrow area then use hand solder.

If both methods fail, repair may required multichannel oscilloscope to locate broken component or track.
15  Screen Tablet malarky / Build Logs / Re: Serenitiq 2 - Wacom Intuos 4 L + Rozsnyo DP2MBPR controller + LTN154YL01 on: August 08, 2017, 04:59:03 PM
Nice trick with oled polarizer.
I must warn You. UV filter (often integrated with polarizer) is must have for outdoor OLEDs. Without that filter, OLED will be degraded by the UV light.
Hope You not have too much UV light near tablet.

Back to topic. ATA cable is OK for LVDS (USB 1.1 should be fine too), but flat SCSI cable are better because it have twisted pairs. Just look at attachment. 68pin connectors identical to ATA connectors are available too.
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