Oh, I see. I would be talking to the moteduino directly through my FTDI/USB
on my PC. I have my USB ports busy on other things, and would use the Rx/Tx
for the local moteduino. No need for two ports for me.
On Tue, Feb 11, 2014 at 12:31 PM, Eloy Paris <pe...@chapus.net> wrote:
> You connect the Moteino/Arduino to the RPi using USB. Your code running
> on the RPi opens /dev/ttyUSB0 (or whatever it shows up as) and talks to
> the uC on the Moteino/Arduino like if it were using a true serial port
> (/dev/ttyUSB0 behaves like a true serial port for all intents and
> purposes). You don't have to use /dev/ttyAMA0 (the Broadcom UART) to
> talk to the Moteino/Arduino. In fact, you cannot because the Rx and Tx
> pins of the uC are connected to the FTDI chip, so USB is the only option
> to talk to an Arduino via serial (unless the Arduino is one of the
> recent generations that supports more than one serial port), in which
> you don't have to use USB and can use the RPi serial port directly.
>
> On 02/11/2014 03:19 PM, Colin Reese wrote:
>
> > Yes, but we'd connect directly to the serial connection on the Pi after
> > disabling the console, not go through USB.
> >
> >
> > On Tue, Feb 11, 2014 at 12:11 PM, Eloy Paris <pe...@chapus.net
> > <mailto:pe...@chapus.net>> wrote:
> >
> > On 02/11/2014 02:58 PM, Colin Reese wrote:
> >
> > > I have very little Arduino experience, but I was under the
> > impression
> > > that the serial console over the FTDI was typically just used
> > for debug.
> >
> > What's the difference between sending a debug message to the PC or
> RPi
> > through the serial port/USB connection and sending a temperature
> value
> > received from a remote wireless sensor? It's all about how the data
> is
> > interpreted on the PC side, right? ;-)
> >
> > The Arduino/Moteino/uC will also be able to read data sent to it by
> the
> > RPi through the USB connection.
> >
> > Cheers,
> >
> > Eloy Paris.-
>
>
>
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