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maemo.org - Talk (https://talk.maemo.org/index.php)
-   The Other Half (https://talk.maemo.org/forumdisplay.php?f=59)
-   -   [] Jolla OtherHalf UART/232 Interface (https://talk.maemo.org/showthread.php?t=92382)

jesper 2014-01-26 09:30
Re: [WIP] Jolla OtherHalf UART/232 Interface
 
1 Attachment(s)
Does it have to be a DB9?
Better to use a smaller connector type, like micro-D or something.

kimmoli 2014-01-26 11:19
Re: [WIP] Jolla OtherHalf UART/232 Interface
 
Quote:
Originally Posted by jesper (Post 1409014)
Does it have to be a DB9?
actually it is DE9 ... but that is another story.

I have given lots of thoughts for another connectors.. then the toh needs to include this adapter cable, but mjaa it shouldn't be a problem.
Micro D is one option, but it is not so Micro afterall..

Maybe then go even more miniature... something like JST SHL or whatever... >10⁷ different connectors out there...
This would keep the TOH slim, no overhangs. IR (and IRDA) usable, fits in pocket, not blocking phones own connectors, and with the adapter cable get access to RS232 pins in standard D9.

You pushed, i iterate.

stb 2014-02-13 23:09
Re: [WIP] Jolla OtherHalf UART/232 Interface
 
Would be nice to have a connector to TTL, so I could use my video terminal (https://code.google.com/p/tinyvt/) on it. :)

kimmoli 2015-02-07 15:19
Re: [] Jolla OtherHalf UART/232 Interface
 
Long time no update. Actually the design has been frozen for a year now.

Today i managed to progress it to level - order PCB's for first version

https://lh6.googleusercontent.com/-k...art-leiska.jpg

This is what i ended up with:
  • RS-232 available in DE-9 connector
  • Logic level signals in pinheader, external supply 2.5V to 5V, or internal 3.3V
  • When voltage in VIN pin present, RS-232 disabled
  • IrDA port (assembly alternative with pinheader)

Then some 3D design...

nieldk 2015-02-07 15:33
Re: [] Jolla OtherHalf UART/232 Interface
 
Quote:
Originally Posted by kimmoli (Post 1459955)
Long time no update. Actually the design has been frozen for a year now.

Today i managed to progress it to level - order PCB's for first version

https://lh6.googleusercontent.com/-k...art-leiska.jpg

This is what i ended up with:
  • RS-232 available in DE-9 connector
  • Logic level signals in pinheader, external supply 2.5V to 5V, or internal 3.3V
  • When voltage in VIN pin present, RS-232 disabled
  • IrDA port (assembly alternative with pinheader)

Then some 3D design...
Preorders?
Iam in! :)

kimmoli 2015-02-07 21:21
Re: [] Jolla OtherHalf UART/232 Interface
 
built picocom for jolla, made a test driver that creates a pseudo-terminal like /dev/pts/1
works.
hope that the China newyear/spring festival doesnt delay pcb delivery too much.

robthebold 2015-02-08 00:20
Re: [] Jolla OtherHalf UART/232 Interface
 
Quote:
Originally Posted by kimmoli (Post 1459955)

[*]RS-232 available in DE-9 connector
Thank you for not writing DB-9!

robthebold 2015-02-08 00:23
Re: [] Jolla OtherHalf UART/232 Interface
 
Quote:
Originally Posted by kimmoli (Post 1459985)
built picocom for jolla, made a test driver that creates a pseudo-terminal like /dev/pts/1
works.
hope that the China newyear/spring festival doesnt delay pcb delivery too much.
Although the holiday is technically something like 2 weeks long, the production delay never seems to be anywhere that that bad in my experience.

nieldk 2015-03-09 14:29
Re: [] Jolla OtherHalf UART/232 Interface
 
Hey kimmoli

Just waiting to purchase this one ;)

kimmoli 2015-03-09 14:32
Re: [] Jolla OtherHalf UART/232 Interface
 
Still waiting for PCBs to arrive, shipped during MWC (but not shown on tracking yet :( )


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