[PD] comport + usb hub issue

[Martin Peach]

On Mon, Aug 29, 2016 at 10:55 PM, Rick Snow <ricksnow at gmail.com> wrote:

> Howdy list,
>
> I am using comport to send messages to three arduinos via osx for an
> installation.  Almost invariably one of the connections drops after an
> extended period of time.  It seems that only unplugging and replugging in
> the usb hub's usb cable will refresh the connection (after sending the
> connect message again from the patch).  I am running the project on an
> older macbook pro with osx 10.8.5.  Is this a usb hub problem (radioshack
> brand) or should I be looking at something else?
>
>
Most laptops don't have a lot of juice in the USB connector so you should
power the hub separately (although some (e..g. thinkpads) have one USB
socket that has more power capability). Also if the arduinos are running
servos or anything that takes a lot of power they should be on their own
power supply (not USB).

Martin
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