[sudo-discuss] null modem adaptor needed

[Jake]

not unless it says nulll-modem on it
thanks

On Mon, 8 Sep 2014, johanna faust wrote:

> cable male to male 9-pin; useful?
> 
> On Sat, Sep 6, 2014 at 2:12 PM, Jake <jake at spaz.org> wrote:
>       also if you want to see the robot shake its maraca, start reading the manuals so you can program
>       it!  i am told that it's "easy" to program things like "waypoint one, waypoint two, repeat" and
>       then set the speed...
>
>       and shaking the maraca (after it's wedged firmly into the "hand") would be a perfect Hello World!
>
>       getting the serial stuff to work is for uploading programs written elsewhere, or hopefully
>       controlling the robot directly over the serial port.
>
>       -jake
>
>       On Sat, 6 Sep 2014, hol at gaskill.com wrote:
> 
>
>             i've got a DB-9 gender changer sitting around - would that work?  coming by
>             sunday and would love to see the robot shake its maraca! 
>
>              
>
>              
>
>             On 2014-09-06 13:04, Jake wrote:
>
>             i feel ridiculous asking for a null-modem adaptor...
>
>             and certainly one can be made with a bit of soldering on a regular cable (wh
>             ich we have extras of)
>
>             but if anyone has a null-modem adaptor laying around, i think we need it for
>              the robot.  A DE-9 to DE-9 (male to female) would be ideal, although a DB-2
>             5 one would work too.  Even if it goes from 25 to 9 pins that would be fine.
>               We have lots of regular serial cables.
>
>             This is to hook the 3d-printing desktop computer up to the robot, so we can make it do
>             more stuff.  I am not sure a null-modem adaptor is needed, but it
>              doesn't seem to say anything at all without one so i'm guessing that's the problem. 
>             Normally a disk drive (which we have) plugs into this port on the robot, so to connect
>             the robot to a computer would suggest DTE-DTE which wou
>             ld require a null-modem adaptor.
>
>             -jake
>
>             * there is no such thing as a DB-9 connector:
>             http://en.wikipedia.org/wiki/D-subminiature#mediaviewer/File:DSubminiatures.
>             svg
>
>             DCE/DTE and null-modem adaptors:
>             http://en.wikipedia.org/wiki/Data_terminal_equipment
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> 
>