Connecting microcontroller and pda with USB

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Subject Author Date
Connecting microcontroller and pda with USB gidesa 10-17-2007
Posted by gidesa on October 17, 2007, 4:03 pm
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Hello, is it possible to connect a pda, as a Palm, with a
microcontroller using the usb port on the pda and a usb-to-serial
conversion circuit on the micro?


Posted by Wayne C. Gramlich on October 17, 2007, 4:45 pm
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gidesa wrote:
> Hello, is it possible to connect a pda, as a Palm, with a
> microcontroller using the usb port on the pda and a usb-to-serial
> conversion circuit on the micro?

My understanding is that most pda's are USB slave devices
and can not host another USB slave device such as a
usb-to-serial adaptor. There are some USB device called
"USB to go" that have a limited ability to host another
USB device, but that is not the norm.

-Wayne

Posted by Jens Peter Lindemann on October 18, 2007, 3:50 am
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> > Hello, is it possible to connect a pda, as a Palm, with a
> > microcontroller using the usb port on the pda and a usb-to-serial
> > conversion circuit on the micro?
>
> My understanding is that most pda's are USB slave devices
> and can not host another USB slave device such as a
> usb-to-serial adaptor. There are some USB device called
> "USB to go" that have a limited ability to host another
> USB device, but that is not the norm.

But this can be the answer: If you use a microcontroller with "USB to
go" functionality (AFAIR there is a AVR with such a USB interface
on-chip) and make the microcontroller the host for the Palm, you're
close to what the OP wants...

--
"Die Chance zu ertrinken, ist 5mal so hoch, wie bei einem Fahrradunfall
abzuleben. Wenn sie also Fahrrad fahren, vergessen sie den Sturzhelm.
Nehmen sie lieber Schwimmflügelchen."
(Dieter Nuhr, WDR2-Kabarett)

Posted by Joe McKibben on October 18, 2007, 8:34 am
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On Oct 18, 3:50 am, Jens Peter Lindemann <j...@bioneuro18.uni-
bielefeld.de> wrote:
>
> > > Hello, is it possible to connect a pda, as a Palm, with a
> > > microcontroller using the usb port on the pda and a usb-to-serial
> > > conversion circuit on the micro?
>
> > My understanding is that most pda's are USB slave devices
> > and can not host another USB slave device such as a
> > usb-to-serial adaptor. There are some USB device called
> > "USB to go" that have a limited ability to host another
> > USB device, but that is not the norm.
>
> But this can be the answer: If you use a microcontroller with "USB to
> go" functionality (AFAIR there is a AVR with such a USB interface
> on-chip) and make the microcontroller the host for the Palm, you're
> close to what the OP wants...
>
> --
> "Die Chance zu ertrinken, ist 5mal so hoch, wie bei einem Fahrradunfall
> abzuleben. Wenn sie also Fahrrad fahren, vergessen sie den Sturzhelm.
> Nehmen sie lieber Schwimmfl=FCgelchen."
> (Dieter Nuhr, WDR2-Kabarett)

There are a couple books that have been written about using PDAs in
robots. I have two of them and I think one is called PDA robotics. I
can't remember how exactly they did it, if they used the usb port or
not. I will have to look it up later.

You may also want to check out www.acroname.com, they have some PDA
robot kits that are pretty cool.

Joe McKibben


Posted by Joe McKibben on October 18, 2007, 8:49 am
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> On Oct 18, 3:50 am, Jens Peter Lindemann <j...@bioneuro18.uni-
>
>
>
>
>
> bielefeld.de> wrote:
>
> > > > Hello, is it possible to connect a pda, as a Palm, with a
> > > > microcontroller using the usb port on the pda and a usb-to-serial
> > > > conversion circuit on the micro?
>
> > > My understanding is that most pda's are USB slave devices
> > > and can not host another USB slave device such as a
> > > usb-to-serial adaptor. There are some USB device called
> > > "USB to go" that have a limited ability to host another
> > > USB device, but that is not the norm.
>
> > But this can be the answer: If you use a microcontroller with "USB to
> > go" functionality (AFAIR there is a AVR with such a USB interface
> > on-chip) and make the microcontroller the host for the Palm, you're
> > close to what the OP wants...
>
> > --
> > "Die Chance zu ertrinken, ist 5mal so hoch, wie bei einem Fahrradunfall
> > abzuleben. Wenn sie also Fahrrad fahren, vergessen sie den Sturzhelm.
> > Nehmen sie lieber Schwimmfl=FCgelchen."
> > (Dieter Nuhr, WDR2-Kabarett)
>
> There are a couple books that have been written about using PDAs in
> robots. I have two of them and I think one is called PDA robotics. I
> can't remember how exactly they did it, if they used the usb port or
> not. I will have to look it up later.
>
> You may also want to check outwww.acroname.com, they have some PDA
> robot kits that are pretty cool.
>
> Joe McKibben- Hide quoted text -
>
> - Show quoted text -

At least acroname used to sell a PDA kit, it seems they don't have it
any more. They used to have an omnidirectional robot that came with
the PDA and everything.

Joe McKibben


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