[Done] CommonSense controller - better capsense!

User avatar
wcass

12 Oct 2018, 01:21

Yes, that will do. Again, make sure that this is made 0.8 mm thick. The zip file attached can be send directly to any PCB manufacturer. Shipping will likely be more expensive than the boards themselves.
Shim.png
Shim.png (6.48 KiB) Viewed 566 times
Attachments
Shim.zip
(2.75 KiB) Downloaded 18 times

njm

12 Oct 2018, 01:30

Ok great, thanks wcass.

njm

07 Nov 2018, 00:04

My 30 pin connector from ebay arrived this week, so I had a go at wiring up my DisplayWriter last night. Happy to report that CommonSense is working well with it.
IMG_4028.jpeg
IMG_4028.jpeg (832.2 KiB) Viewed 477 times
Thanks for your help with this wcass. I ordered some of your shims from oshpark, but haven't had to use them yet (the 1.6mm connector actually seems to be a fairly snug fit).

User avatar
tentator

21 Dec 2018, 02:01

Hi DMA!
after years I'm finally ready to bring my FEXT to live and do it with the CapSense!!
First of all, happy to see the great success here! This will soon even be Bluetooth... omg.. :)
Anyway I wanted to ask and propose to make a couple of explicit pictures/drawings of the wiring between controller and board(s) and then finally put it in the first post of this thread and in the documentation/github: what do you think?
If nothing fancy is ok I can offer myself to do a picture based on this one:
photo5828007575856197620.jpg
photo5828007575856197620.jpg (125.22 KiB) Viewed 386 times
For instance I know from i$ this one:
DSCF6527_01.jpg
DSCF6527_01.jpg (76.86 KiB) Viewed 386 times
So to avoid errors, the idea in this case would be to wire Pin 3, the first row, to P2.0 then Pin 4, the second row, to P2.3, etc (even if not clear where a 7th or 8th row would be mapped to, if at all possible), correct?
Similar for the columns, I expect Pin 13, the first column, to go to P1.1, Pin 14, second column, goes to P1.2, etc.., also correct?

And I guess it will be easy to find similar for model F XT/ Beamsprings / etc but I think what is important for the guide is to offer one or two examples, the rest is then more intuitive.
Maybe I could do even an ASCII art for the documentation! =)

Kr,
tent:wq

DMA

21 Dec 2018, 02:47

Congratulations! :)
tentator wrote: after years I'm finally ready to bring my FEXT to live and do it with the CapSense!!
First of all, happy to see the great success here! This will soon even be Bluetooth... omg.. :)
I dunnot about BLE, haven't touched keyboards in like 3 months. Work, y'know :(
tentator wrote: So to avoid errors, the idea in this case would be to wire Pin 3, the first row, to P2.0 then Pin 4, the second row, to P2.3, etc (even if not clear where a 7th or 8th row would be mapped to, if at all possible), correct?
Yes. There are 8 rows - 2.0, 2.3, 2.4, 2.5..
Similar for the columns - there are 24 of those, but if you want more than 16 you have some desoldering to do.

As long as you solder cols to columns and rows to rows - you're fine (you can solder cols to rows and rows to columns - that would also work). if you wire col0 to column 2 and col2 to column 1 - your layout will look funny, but things will work.

I'm not an artist - but I take patches :) You can make a pull request or just PM the file to me - works either way.

User avatar
tentator

05 Jan 2019, 18:37

Hi Again DMA,
quick double-check: so the 8 columns would be: 2.0, 2.3, 2.4, 2.5, 2.6, 2.7, 12.7 and 12.6, correct?
also: can you drive a solenoid with this board?

Kr,
tent:wq

DMA

05 Jan 2019, 19:13

tentator wrote: Hi Again DMA,
quick double-check: so the 8 columns would be: 2.0, 2.3, 2.4, 2.5, 2.6, 2.7, 12.7 and 12.6, correct?
Those are rows. Can only be 8 of those.
Columns are 1.0, 1.1, 1.2... - up to 24 of those.
tentator wrote: also: can you drive a solenoid with this board?
You'll need xwhatsit solenoid daughterboard for actual driving, but this board can control it.

User avatar
tentator

05 Jan 2019, 20:35

yes sorry, wanted to write rows :) so the 8 listed ones are the correct ones?
the solenoid daughterboard from xwhatsit is something complex or could I just handwire a couple of resistors and caps myself?

User avatar
tentator

05 Jan 2019, 21:03

What I wanted to do is just produce a complete pinout picture for others to reference to as well like the following:
Spoiler:
capsense-dma-cygnus-IBM-connector-pinout.png
capsense-dma-cygnus-IBM-connector-pinout.png (1.09 MiB) Viewed 276 times

DMA

05 Jan 2019, 23:31

tentator wrote: yes sorry, wanted to write rows :) so the 8 listed ones are the correct ones?
the solenoid daughterboard from xwhatsit is something complex or could I just handwire a couple of resistors and caps myself?
No, it's a small boost converter + triggering circuit. So I doubt you can handwire that :)
https://www.ebay.com/itm/Xwhatsit-SOLEN ... 2860110367

Post Reply

Return to “Workshop”