[PD] Comport can't read serial devices when soundcard is plugged in

[Martin Peach]

If you are plugging and unplugging the arduino it's possible the OS 
doesn't detect it properly. I know there were issues with the FTDI 
driver not reporting when the device had been removed, that caused Pd to 
hang.
As long as your resistors are more than about 1 kOhm it should be OK.
If you write ones to the input pins they will have internal pullup 
resistors enabled, so a switch that connects the pin to ground when it's 
on will work.
And the pots should be wired like this:

5V
\
/
\<----Pin
/
\
GND

Anyway you say it works once it connects, so it's probably not the 
hardware, except possibly the cable/connectors.

Martin

On 2011-07-09 12:00, Pierre Massat wrote:
> It's a laptop.
> I don't get random dropouts once it's connected (I used it for 2 ours in
> Pd and it worked fine all the time), but it just doesn't appear (either
> in the Serial port menu of the IDE, or in the device list that comport
> outputs) randomly. Do you think that this could still be caused by
> something sucking up too much current? There's nothing special connected
> to the board : 2 pots, and 8 buttons (wired so that their rest position
> is High).
>
> Pierre
>