[PD] Forwarding serial data through an Arduino (with firmata) to a serial display

[Ingo]

Thanks! I'll have a look at the SoftwareSerial library.

> You also need a TTL-to-RS232C voltage converter between the Arduino and
> display.

The serial converter of the display takes already care of that.

> It is probably much simpler to use a separate USB to serial adapter.
> Those work out of the box with Ubuntu and you only have to change the
> serial port name in your patch.

Yes, that works fine but it mixes up the port number of the arduino and the
serial adapter. I can't get the two to be assigned to the same port number
each time Pd starts. They both show up as /dev/ttyUSB0 or /dev/ttyUSB1 on
the [comport].

It also would be cleaner with less cables to have the arduino taking care of
the serial data transfer. If I can't get that to work I'll have to use a
serial adapter and find a good way to distinguish the two automatically.

Ingo


> -----Ursprüngliche Nachricht-----
> Von: pd-list-bounces at iem.at [mailto:pd-list-bounces at iem.at] Im Auftrag von
> Fred Jan Kraan
> Gesendet: Mittwoch, 5. Juni 2013 19:18
> An: pd-list at iem.at
> Betreff: Re: [PD] Forwarding serial data through an Arduino (with firmata)
> to a serial display
> 
> On 2013-06-05 14:24, Ingo wrote:
> > Hi everybody!
> >
> > I am dealing with the problem that I have changed to a new mainboard
> which
> > doesn't have a serial port anymore. I'm on Ubuntu Natty.
> >
> > I used to send LCD display data to my remote on the normal serial port
> using
> > [comport]. The display itself has a serial interface. The remote uses a
> > separate cable and [comport] for USB going to the arduino.
> >
> > Is it possible to transfer the serial data for the display through the
> > arduino using the arduinos serial out to feed the display (with a baud
> rate
> > of 19200) ?
> >
> > I still need to use firmata for all other arduino stuff.
> > So it should be like an addon to firmata. Or is this already possible
> with
> > the current firmata?
> >
> > If anybody has done this before I'd appreciate any help!
> 
> I did some Arduino programming but not much with Firmata.
> 
> It is possible, but it probably means you have to create your own
> firmata sketch which includes the SoftwareSerial library. With an
> Arduino with more serial ports, like the Mega2560 or Leonardo, you won't
> need SoftwareSerial but still a custom Firmata. You also need a
> TTL-to-RS232C voltage converter between the Arduino and display.
> 
> It is probably much simpler to use a separate USB to serial adapter.
> Those work out of the box with Ubuntu and you only have to change the
> serial port name in your patch.
> >
> > Ingo
> 
> Greetings,
> 
> Fred Jan
> >
> >
> > _______________________________________________
> > Pd-list at iem.at mailing list
> > UNSUBSCRIBE and account-management ->
> http://lists.puredata.info/listinfo/pd-list
> >
> 
> 
> _______________________________________________
> Pd-list at iem.at mailing list
> UNSUBSCRIBE and account-management ->
> http://lists.puredata.info/listinfo/pd-list