[sudo-discuss] null modem adaptor needed

[johanna faust]

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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>>
>>
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