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PICList Thread
'[OT]: Palm <-> PIC'
2000\09\08@005403 by Dan Michaels

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I don't recall this having been discussed recently on the
list -

I am interested in the possibility of controlling a PIC via
the RS-232 port of a Palm [Pilot]. This would involve routines
for transferring data via RS-232, displaying it graphically,
storing, and eventually transferring to a PC. Certainly this
has been done before.

1. Anyone know of links that might describe these basic ops?

2. It looks like 9600 and 19200 bps RS-232 are doable on the
  Palm - can they go 38400 and faster?

3. What would be a good development s.w. platform for the Palm?
  Preferably using C.

best regards,
- Dan Michaels
Oricom Technologies
http://www.sni.net/~oricom
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2000\09\08@085130 by Stephen B Webb

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> 2. It looks like 9600 and 19200 bps RS-232 are doable on the
>    Palm - can they go 38400 and faster?

I believe the palm supports 115.2k on the serial line

> 3. What would be a good development s.w. platform for the Palm?
>    Preferably using C.

I guess codewarrior for palm is your best bet.


Believe it or not, http://www.palm.com has a pretty good amount of documentation
that is worth reading.

-Steve

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2000\09\08@114158 by Dan Michaels

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Stephen B Webb wrote:
>> 2. It looks like 9600 and 19200 bps RS-232 are doable on the
>>    Palm - can they go 38400 and faster?
>
>I believe the palm supports 115.2k on the serial line
>
>> 3. What would be a good development s.w. platform for the Palm?
>>    Preferably using C.
>
>I guess codewarrior for palm is your best bet.
>
>
>Believe it or not, http://www.palm.com has a pretty good amount of documentation
>that is worth reading.
>


Thanks Steve, I hunted around on there, and on http://www.palm.net, and
found tons of stuff on wireless comm, but nothing yet on doing datacq,
comm, and data display when interfacing to something like a PIC.
Still looking.

best regards,
- Dan Michaels
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2000\09\08@122542 by Ricardo Seixas

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Dan,

This link www.ibr.cs.tu-bs.de/~harbaum/pilot/adxl202.html
interfaces an adxl202 to a Palm maybe can give you some 'light'.

Ricardo Seixas




>Thanks Steve, I hunted around on there, and on http://www.palm.net, and
>found tons of stuff on wireless comm, but nothing yet on doing datacq,
>comm, and data display when interfacing to something like a PIC.
>Still looking.
>
>best regards,
>- Dan Michaels
>==============

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2000\09\08@125835 by Dan Michaels

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Ricardo Seixas wrote:
>
>This link www.ibr.cs.tu-bs.de/~harbaum/pilot/adxl202.html
>interfaces an adxl202 to a Palm maybe can give you some 'light'.
>

Thank you very much, Ricardo. This is exactly the nuts-and-bolts
type of thing I was looking for. Greatly appreciated.

Going up one level on the site, there are a number of apps with
Palm source included - one for an IrDA analyzer, which various
people have wanted to do [with a PIC] in the past.

best regards,
- Dan Michaels
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2000\09\08@131258 by Mark Willis

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Hi, Dan - IIRC, Electronics Now (now PopTronics) or Nuts & Volts had
articles on this in the past;  I think they were using a Palm (Pro?) as
a bike computer or some such application.  Haven't read that in a while,
can try to look it up Monday - as I'm now where I need to do the same
exact sort if thing for one project.

(Upgrading these to 2Mb RAM isn't hard - looking for a Palm III OS, IR
capable card, myself.)

Serial stuff?  My Palm Pro sez 56k on the Preferences | Modem screen.  I
think it'll do 56k <G>

Used to be the case that you wanted a Mac for Palm SW development,
apparently you can go with 80x86'en (Linux too) now - don't scream at me
if I'm wrong there <G>

http://www.palmos.com/dev/tech/palmhardware/ has the serial cable wiring
diagrams etc.
http://www.palmos.com/dev/tech/new/ should help on getting started doing
Palm Software - Have to go hit that myself <G>
http://www.pstec.de/ppp/ has a lot of misc. Palm information and
goodies.
http://www.cs.tu-bs.de/~harbaum/pilot/ has C and other programming
language resources at the bottom.
http://www.geocities.com/daveinfopage/palmpilot_freeISP.html (that's
about hooking to free ISP's off the palm <G>)

 Mark

Dan Michaels wrote:
{Quote hidden}

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2000\09\08@132126 by Severson, Rob

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Huh, I probably will be in the same boat soon. So M. Willis, D. Michaels,
and R. Severson. Who gets to be first mate?

I may or may not use the PIC, but will likely do about the same thing. I own
CodeWarrior for the PC, but have only played around with it. Lets keep in
touch as we find things.

Anyone else? It's a big boat...

-Rob



> {Original Message removed}

2000\09\08@141922 by Dan Michaels

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Mark Willis wrote:
>Hi, Dan - IIRC, Electronics Now (now PopTronics) or Nuts & Volts had
>articles on this in the past;  I think they were using a Palm (Pro?) as
>a bike computer or some such application.  Haven't read that in a while,
>can try to look it up Monday - as I'm now where I need to do the same
>exact sort if thing for one project.
>
>(Upgrading these to 2Mb RAM isn't hard - looking for a Palm III OS, IR
>capable card, myself.)
>

Thanks, Mark, will check thru back issues. If Palm Pro, issue is
probably several years old.

Duh - what is IIRC ???  has a website ???

I am looking downstream a couple of months and don't even have a
Palm at present. Not too interested in jumping into a wireless unit
- factors are $$$ and signing up for another service, plus don't
really care to surf the web with 16 character screen width [ha - I
prefer doing it on my cell phone with 6 character res - NOT!!].

Am thinking of a Palm IIIxe as a nice compromise - 8MB, OS upgradeable,
run for 2 months [whatever] off AAA. Looks like a perfect platform
for what I have in mind - talking to PICs via RS-232. Comments ???????

Will check out the sites you listed.

Also, I would imagine someone has a simple little terminal emulator
available for Palm ???

best regards,
- Dan Michaels
Oricom Technologies
http://www.sni.net/~oricom
==========================

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2000\09\08@142747 by Dan Michaels

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Rob Severson wrote:
>Huh, I probably will be in the same boat soon. So M. Willis, D. Michaels,
>and R. Severson. Who gets to be first mate?
>
>I may or may not use the PIC, but will likely do about the same thing. I own
>CodeWarrior for the PC, but have only played around with it. Lets keep in
>touch as we find things.
>
>Anyone else? It's a big boat...
>


Hi Rob, I am definitely 3rd mate of the scuppers - don't even have
a Palm at present. Mark is the guy what walks around with an HPLX
taped to his wrist, and a battery-powered PIC programmer hanging on
his belt - much more experienced with this kinda thing.

All I know at present is what I can look up in a book called "Palm
Pilot the Ultimate Guide". Has a CD with codewarrior lite on it.

At present, I want a little unit to talk to my various PIC devices,
and graphically display the data. Basically a notebook replacement.
Looking at Palm, rather than other handhelds, mainly because of
$$$, and wide popularity.

best regards,
- Dan Michaels
Oricom Technologies
http://www.sni.net/~oricom
==========================

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2000\09\08@143201 by Severson, Rob

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> Duh - what is IIRC ???  has a website ???

Uh, "If I Recall Correctly"


> Am thinking of a Palm IIIxe as a nice compromise - 8MB, OS
> upgradeable,
> run for 2 months [whatever] off AAA. Looks like a perfect platform
> for what I have in mind - talking to PICs via RS-232. Comments ???????

Take a look at the Handspring Visor ($149)


> Also, I would imagine someone has a simple little terminal emulator
> available for Palm ???

I *think* so.


{Quote hidden}

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2000\09\08@143545 by Severson, Rob

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> Hi Rob, I am definitely 3rd mate of the scuppers - don't even have
> a Palm at present. Mark is the guy what walks around with an HPLX
> taped to his wrist, and a battery-powered PIC programmer hanging on
> his belt - much more experienced with this kinda thing.

Just try walking through the airport metal detector...


> All I know at present is what I can look up in a book called "Palm
> Pilot the Ultimate Guide". Has a CD with codewarrior lite on it.
>
> At present, I want a little unit to talk to my various PIC devices,
> and graphically display the data. Basically a notebook replacement.
> Looking at Palm, rather than other handhelds, mainly because of
> $$$, and wide popularity.

My use will be to send serial control signals to the PIC. Like a
configurable keypad.

Wouldn't you think that someone would have done this?

-Rob

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2000\09\08@144215 by Dan Michaels

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Rob Severson wrote:
>> Duh - what is IIRC ???  has a website ???
>
>Uh, "If I Recall Correctly"
>

What a dunce. I thought Mark was referring to a magazine.
IIRC - Insights Into Radio Control/Communications - whatever.
Oy vay - shoot me.
==============

>
>> Am thinking of a Palm IIIxe as a nice compromise - 8MB, OS
>> upgradeable,
>> run for 2 months [whatever] off AAA. Looks like a perfect platform
>> for what I have in mind - talking to PICs via RS-232. Comments ???????
>
>Take a look at the Handspring Visor ($149)
>

Visor is a possiblity too - but I imagine the h.w. interface on the
Palm is much simpler to use - RS-232 vs fancy-pantsie multi-pin.

Do you have experience with Visor h.w. interface?

best regards,
- Dan Michaels
Oricom Technologies
http://www.sni.net/~oricom
==========================

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2000\09\08@144224 by Scott Newell

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>All I know at present is what I can look up in a book called "Palm
>Pilot the Ultimate Guide". Has a CD with codewarrior lite on it.

Excellent book (although it doesn't cover the latest OS features) at:


http://www.palmos.com/dev/tech/docs/devguide/TableOfContents.htm


For tools, I prefer the PRC-tools (based on GCC) over Codewarrior.  You can
get them at:


http://www.palmos.com/dev/tech/tools/gcc/


No palm?  Grab the emulator,


http://www.palmos.com/dev/tech/tools/emulator/

sign up for the developer's program, and then you can download release and
debug (_very_ handy) ROM images of the different models to run on the
emulator.  If you've got a Palm, you can legally upload the image from ROM
to your PC and run that OS in the emulator.

Under Windows (probably Mac too, not sure about Unix), the emulator will
even redirect TCP/IP and serial port calls to the appropriate PC devices.


newell

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2000\09\08@144636 by Dan Michaels

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Rob Severson wrote:
>> Hi Rob, I am definitely 3rd mate of the scuppers - don't even have
>> a Palm at present. Mark is the guy what walks around with an HPLX
>> taped to his wrist, and a battery-powered PIC programmer hanging on
>> his belt - much more experienced with this kinda thing.
>
>Just try walking through the airport metal detector...
>

Mark claims to take his units on backpacking trips. Shoot, when I
go to the mtns, I don't even take a flashlite.
===============

>
>My use will be to send serial control signals to the PIC. Like a
>configurable keypad.
>
>Wouldn't you think that someone would have done this?
>

Well, that *was* my very first question.

The site Ricardo mentioned has some good hacker stuff:
http://www.ibr.cs.tu-bs.de/~harbaum/pilot/

- danM

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2000\09\08@145012 by Severson, Rob

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>
> Visor is a possiblity too - but I imagine the h.w. interface on the
> Palm is much simpler to use - RS-232 vs fancy-pantsie multi-pin.
>
> Do you have experience with Visor h.w. interface?

Nope. Have a PalmIII not visor. Just wanted to mention this alternative.

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2000\09\08@153320 by Dan Michaels

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Scott Newell wrote:
>>All I know at present is what I can look up in a book called "Palm
>>Pilot the Ultimate Guide". Has a CD with codewarrior lite on it.
>
>Excellent book (although it doesn't cover the latest OS features) at:
>
>
>www.palmos.com/dev/tech/docs/devguide/TableOfContents.htm
............


Hi Scott, thanks for the additional information. Getting enough links
now to keep me busy mining for a couple of days.

The PPTUG book is a little light on technical details, but at least
a place to start.

From your experience, do you think the IIIxe would be a good
development platform, or possibly a more expensive palm? No
need for wireless modem [or color] at this time.

cheers,
- danM

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2000\09\08@154334 by Severson, Rob

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> The PPTUG book is a little light on technical details, but at least
> a place to start.

PPTUG is a good intro but you might want to read PPTDG.









Oh, OK. PPTDG is "Palm Programming The Developer's Guide" by Rhodes and
McKeehan. This is also an O'Reilly book. It has a rock dove on the cover.

There is serial programming info in chapter 9 that looks an awful lot like
the info on the web site...

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2000\09\08@155131 by Scott Newell

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>>From your experience, do you think the IIIxe would be a good
>development platform, or possibly a more expensive palm? No
>need for wireless modem [or color] at this time.

I started developing before I even had a palm--using POSE.  I had to have
IR, and the cheapest solution was the IIIe.  I've since acquired a III,
IIIxe, and Visor.  IIIxe has OS 3.5, flash, and 8 MB ram, so it's a great
dev machine.  TRG has a device with a compact flash slot--that looks real
interesting...

To me, the IIIc isn't all that impressive considering the price.  How much
more for that hot new Compaq iPaq?

The VII isn't a player in my area, due to wireless coverage restrictions.

The V and Vx have an internal rechargeable battery pack, which may/may not
be a problem, depending on application.

Visor doesn't have the same cradle connector as the Palm III series, so
it's a little harder to find serial cables.  I'm not sure if the serial
port handshake signals are present on the Visor or not.  (I've got the
stock USB cradle, not the optional serial cradle, so I can't easily check.)


newell

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2000\09\08@160802 by Dan Michaels

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Scott Newell wrote:
>>>From your experience, do you think the IIIxe would be a good
>>development platform, or possibly a more expensive palm? No
>>need for wireless modem [or color] at this time.
>
>I started developing before I even had a palm--using POSE.  I had to have
>IR, and the cheapest solution was the IIIe.  I've since acquired a III,
>IIIxe, and Visor.  IIIxe has OS 3.5, flash, and 8 MB ram, so it's a great
>dev machine.  TRG has a device with a compact flash slot--that looks real
>interesting...
>

Sounds like my initial choice was pretty close --> IIIxe.

TRG is another Palm knockoff, I suppose??  With proprietary slot - so
it wouldn't be all that compatible, I imagine.
-------------

Checked out a few sites - most are catalogs and/or shareware listings.
www.palmos.com/dev/tech/docs/devguide/TableOfContents.htm
is the horse's mouth.

Also, found the following site - good links for programming issues:

http://www.wademan.com/Pilot/Program/FAQ.htm

- danM
======

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2000\09\08@193555 by xandinho

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       Talking about palm, I'm looking for one cheap and old. If someone wants to sell, drop me a mail


--------------8<-------Corte aqui-------8<--------------

       All the best!!!
       Alexandre Souza
       spamBeGonexandinhoSTOPspamspamEraseMEinterlink.com.br

--------------8<-------Corte aqui-------8<--------------

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2000\09\09@090701 by Pietro F. Maggi

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Hi,
 As a development system for the PalmOS, my personal pick is the PRC-tools
v2.0, based on the gcc compiler.
You can use this to develop your software and then debug it using POSE. You
can find both on the palm site (http://www.palm.com or http://www.palmos.com).
I usually use then under linux with emacs, for windows peoples I've seen
good reviews of the falch IDE (falch.net) it has even some good introductory
docs.

For the hardware interface part you can consider to sign for the hardware
development kit that comes with 2D drawings, 3D cad models, specification
and vendor contacts (even this available on the developer section of the
palm site).

An example of interfacing the Palm (pro) with a PIC was publishied on the
now dead Handheld System publication (July/Aug 1998, Pilot hardware add-ons
by Gary T. Desrosier). This was available as a PDF months ago, now you have
to buy the CD-ROM with all the back issue, you can check at their site (it
was published by Creative Digital Publishing).
The articles used a PIC16C84 and show two example: "Pilot as volmeter" and
"Controlling external devices". The first use and ADC804, the second drives
a seven segment LED.
All the example are in ASM on both sides (on the PalmOS it uses the PILA
assembler that you can find on the massena site http://www.massena.com).

As a development platform I still prefer the classic Flash devices (III,
IIIx, IIIxe), avoid the color (the 68328 is a bit overhelmed by the 256
color handling) and the ROM device as the Visor. If you have the money, go
for a TRG pro, basically it is a IIIxe with a CF slot. You can connect all
standard devices to the Compact Flash slot included in it, even card with
optoisolated serial interface...

As a last point, you can consider the irda interface for connection with
your circuit.


Best regards

P.S. Speaking of speed of the Palm RS232, the maximum sync speed of the
device is 57600 baud. The MC68EZ328 data sheet, in the section 11, about
UART, states that it support "standard baud rates 300bps to 115.2Kbps". I
don't have currently at hand the data sheet of the MC68328 that is found in
the original Pilot up to the PalmIII.

Pietro F. Maggi
http://www.studiomaggi.com/     p.maggi AT studiomaggi DOT com

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2000\09\09@123729 by Dan Michaels

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Found the following really good sites for Palm hacking:

"Pilot Hack Tutorial"
"Writing Pilot Applications Under Windows"

       http://www.massena.com/darrin/pilot/tanda.htm
       http://www.massena.com/darrin/pilot/

Pilot hardware info [how to open, memory/comm info, etc]:

       http://www.massena.com/darrin/pilot/luiz/hardware.htm

cheers,
- dan michaels
==============

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2000\09\09@124524 by Dan Michaels

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Pietro F. Maggi wrote:
.......
>An example of interfacing the Palm (pro) with a PIC was publishied on the
>now dead Handheld System publication (July/Aug 1998, Pilot hardware add-ons
>by Gary T. Desrosier). This was available as a PDF months ago, now you have
>to buy the CD-ROM with all the back issue, you can check at their site (it
>was published by Creative Digital Publishing).
>The articles used a PIC16C84 and show two example: "Pilot as volmeter" and
>"Controlling external devices". The first use and ADC804, the second drives
>a seven segment LED.
.........


Hello, Pietro, thank you very much for the info. I found a short list of
interesting Handheld Sys articles [hacking, serial comm, TCP/IP, ...] at:

       http://www.massena.com/darrin/pilot/resources.htm

As you said, it is now necessary to buy the CDROM at $14.95 to get the
articles:

       http://www.cdpubs.com/hhsys/

best regards,
- dan michaels
==============

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2000\09\11@024828 by Mark Willis

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Dan Michaels wrote:
> Mark Willis wrote:
> >Hi, Dan - IIRC, Electronics Now (now PopTronics) or Nuts & Volts had
> >articles on this in the past;  I think they were using a Palm (Pro?) as
> >a bike computer or some such application.  Haven't read that in a while,
> >can try to look it up Monday - as I'm now where I need to do the same
> >exact sort if thing for one project.
> >
> >(Upgrading these to 2Mb RAM isn't hard - looking for a Palm III OS, IR
> >capable card, myself.)
> >
>
> Thanks, Mark, will check thru back issues. If Palm Pro, issue is
> probably several years old.

Probably.  http://www.nutsvolts.com/ gave no hits,
http://www.gernsback.com/ gave no joy either.

> Duh - what is IIRC ???  has a website ???

"If I Recall Correctly"  <G>  I think most sites on the web qualify for
this one?  <G>

> I am looking downstream a couple of months and don't even have a
> Palm at present. Not too interested in jumping into a wireless unit
> - factors are $$$ and signing up for another service, plus don't
> really care to surf the web with 16 character screen width [ha - I
> prefer doing it on my cell phone with 6 character res - NOT!!].
>
> Am thinking of a Palm IIIxe as a nice compromise - 8MB, OS upgradeable,
> run for 2 months [whatever] off AAA. Looks like a perfect platform
> for what I have in mind - talking to PICs via RS-232. Comments ???????

No experience with anything newer than the Palm Pro, have yet to upgrade
mine from OS 2.0 to 2.05!  I suspect it'd do;  If you use rechargables
on a pre-cradle-recharging model, I know where to point you for an EASY
hack to make the cradle charge the batteries (If the IIIxe doesn't
already do this.)  I know I'll be building that for mine, pin 9 on the
cradle connector's unused so feed +2.92V or so (charger output, current
limited etc <G>) through that.  Tough soldering job, but do-able.

> Will check out the sites you listed.
>
> Also, I would imagine someone has a simple little terminal emulator
> available for Palm ???

Probably;  I just use the HP200LX for that as I have connectors, Telix
3.2.2, etc. already set for it.  I suspect looking on those sites should
get you about 10,000 links to software download ftp sites <G>

> best regards,
> - Dan Michaels
> Oricom Technologies
> http://www.sni.net/~oricom
> ==========================

Severson, Rob wrote:
> > Hi Rob, I am definitely 3rd mate of the scuppers - don't even have
> > a Palm at present. Mark is the guy what walks around with an HPLX
> > taped to his wrist, and a battery-powered PIC programmer hanging on
> > his belt - much more experienced with this kinda thing.
>
> Just try walking through the airport metal detector...

No, No, No.  We must always carry the battery-powered PIC programmer in
our teeth, when going through airport security <VBG>

Went through security with the ex-girlfiend and her service dog, Zeuss,
carrying multiple palmtops / laptops in one case, enroute to Comdex,
once;  all they wanted to verify was, did they start to boot.  They had
fun scanning her and Zeusser, too <G>  I'm not sure how much of a
problem the wearable computers community has, but, I hear they sometimes
have fun there.

{Quote hidden}

I'll need those books <G>  It isn't going to be a hard app to write if
no-one has, and I'd be shocked if you cannot find one...

> -Rob

(Rob Severson mentions the HandSpring Visor in a later post - $149?
That's a nicely reduced price!  Though with a different connector that's
unavailable, hmmm mumble.)

 Mark

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2000\09\11@115040 by acampbell

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{Quote hidden}

the bad part of this is that the serial port sucks down the
batteries really fast--they recommend not running it idle for
more than 2 min.  (the palm has a MAX233 type usart)

>
> Will check out the sites you listed.
>
> Also, I would imagine someone has a simple little terminal emulator
> available for Palm ???
>
Dicon by Shigeyuki Seko--even has 9600 baud IR
Free-- available at EuroCool
http://www.eurocool.com/palm/apps/latest/index.html

alice

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2000\09\11@123443 by Alan B. Pearce

face picon face
For those who might have a project for which a Palm might be a bit much, the
October 2000 issue of Elektor magazine has a project using a Gameboy as a 2
channel oscilloscope. A card with EPROM, Maxim A/D converter and Dallas digital
pot chip plugs into the ROM port of the gameboy, and if the pictures of the
screen are to be believed, makes a very presentable scope.

Apparently the gameboy uses a Z80 derivative, so it should not be too hard to
hijack this concept for a PIC->Palm communicator type of deal, using a gameboy
instead of a palm.

For those who do not know Elektor magazine, it is of European origin, translated
into several languages including English. Website at
http://www.elektor-electronics.co.uk/

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2000\09\11@143659 by Mike Morris

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At 08:53 AM 9/11/2000 -0700, Alice Campbell wrote:

> > Am thinking of a Palm IIIxe as a nice compromise - 8MB, OS upgradeable,
> > run for 2 months [whatever] off AAA. Looks like a perfect platform
> > for what I have in mind - talking to PICs via RS-232. Comments ???????
>the bad part of this is that the serial port sucks down the
>batteries really fast--they recommend not running it idle for
>more than 2 min.  (the palm has a MAX233 type usart)

Does anyone have any experience with exactly to what extent this is true?
Just how much does leaving the serial port open drain the batteries?

Thanks...

- Mike

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2000\09\12@154539 by Dan Michaels

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Mark Willis wrote:
........
>> Mark claims to take his units on backpacking trips. Shoot, when I
>> go to the mtns, I don't even take a flashlite.
>
>I actually went a whole 10-11 hours today without a computer;  Did carry
>my "security blanket" cell phone with me, so I managed to make it <G>
>Was expecting to work in the rain when I arrived up in the hills, they
>left early though.  Growf.
>
>The computer withdrawal tremors have stopped now.  Honest.  My hands are
>barely shaking <VBG>
>

I just came back from 2 days in the mtns. I lied above - I did take
my flashlite - but my car radio *is* broke. [my biggest fear, though,
was that the house would burn down while I was gone, and fry my
PIC programmer].

And speaking of hi-tech in the mtns, 2 guys from back east were
using GPS to determine the elevation - I looked on the topo map,
and got the same value - he, he. And in here CO, they get 911 calls
all the time via cell phones from mtn tops, from [you guessed it]
lawyers.  [hey, Jim, is it OK to diss lawyers on piclist?].

- Dan Michaels

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2000\09\12@154544 by Dan Michaels

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Mark Willis wrote:
..........
>Went through security with the ex-girlfiend and her service dog, Zeuss,
>carrying multiple palmtops / laptops in one case, enroute to Comdex,
>once;  all they wanted to verify was, did they start to boot.

It is my understanding that they just want to verify that those
things that look like sticks of dynamite on the x-rays are really
working batteries --> thus, the simple "boot" test.

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2000\09\12@154600 by Dan Michaels

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Alice Campbell wrote:
.........
>> Am thinking of a Palm IIIxe as a nice compromise - 8MB, OS upgradeable,
>> run for 2 months [whatever] off AAA. Looks like a perfect platform
>> for what I have in mind - talking to PICs via RS-232. Comments ???????
>the bad part of this is that the serial port sucks down the
>batteries really fast--they recommend not running it idle for
>more than 2 min.  (the palm has a MAX233 type usart)
>

Good to know - will check this out. I also saw something about
the docking pod sucking the RS-232 power.
=============

>> Also, I would imagine someone has a simple little terminal emulator
>> available for Palm ???
>>
>Dicon by Shigeyuki Seko--even has 9600 baud IR
>Free-- available at EuroCool
>http://www.eurocool.com/palm/apps/latest/index.html
>

Thank you, again.

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2000\09\12@154608 by Dan Michaels

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The following was sent me by:  billw <.....emailspam_OUTspamdomain.com>
Thanks - and am passing it along:
===================

At 03:28 PM 9/11/00 -0700, you wrote:
{Quote hidden}

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2000\09\12@162438 by acampbell

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> Alice Campbell wrote:
> .........
> >> Am thinking of a Palm IIIxe as a nice compromise - 8MB, OS upgradeable,
> >> run for 2 months [whatever] off AAA. Looks like a perfect platform
> >> for what I have in mind - talking to PICs via RS-232. Comments ???????
> >the bad part of this is that the serial port sucks down the
> >batteries really fast--they recommend not running it idle for
> >more than 2 min.  (the palm has a MAX233 type usart)
> >
>
> Good to know - will check this out. I also saw something about
> the docking pod sucking the RS-232 power.
> =============
i fixed this with a wire cutters--there is a website showing
which wire to disconnect.
mumble mumble...aha--here it is:

http://www.conklinsystems.com/pilot/drainfix.shtml



alice

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