stamp for 3 trolling motors, which motor controller
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Posts: 46,084
Hi,
I'm trying to use al Williams pak5 for pwm to control 3 trolling motors from a
bs2,,, I found a motor controller at diverse electronics, it uses 3 stamp lines
per motor, so nine lines, plus a pwm line for each motor from the pak5a. I'm
using the pak 6 so I can use an AT keyboard to give commands to the first stamp
which talks to the motor control stamp.
Has anyone else address large dc motors,, what controllers did you use?
I tried this once before a few years ago and burnt up a couple of chips with a
bad ground. Now I'm trying again with the help of a friend who also can't
solder worth a darn (we are old). Anyone have any suggestions for a good kit
for making connections on breadboard between stamps and other i.c.'s I don't
want to solder if I can help it, even with a magnifier it's an exercise
in,,,,,,,, the random spewing of solder.
I was able to get the pak 5 and 6 working ok, as I have saved my programs from
before, but wonder if there is a list of items that would make it easy to do
just about any connection required on a large breadboard, between the stamps and
the other i.c.s. Is there a good kit, or list of items that might be helpful?
Bill
[noparse][[/noparse]Non-text portions of this message have been removed]
I'm trying to use al Williams pak5 for pwm to control 3 trolling motors from a
bs2,,, I found a motor controller at diverse electronics, it uses 3 stamp lines
per motor, so nine lines, plus a pwm line for each motor from the pak5a. I'm
using the pak 6 so I can use an AT keyboard to give commands to the first stamp
which talks to the motor control stamp.
Has anyone else address large dc motors,, what controllers did you use?
I tried this once before a few years ago and burnt up a couple of chips with a
bad ground. Now I'm trying again with the help of a friend who also can't
solder worth a darn (we are old). Anyone have any suggestions for a good kit
for making connections on breadboard between stamps and other i.c.'s I don't
want to solder if I can help it, even with a magnifier it's an exercise
in,,,,,,,, the random spewing of solder.
I was able to get the pak 5 and 6 working ok, as I have saved my programs from
before, but wonder if there is a list of items that would make it easy to do
just about any connection required on a large breadboard, between the stamps and
the other i.c.s. Is there a good kit, or list of items that might be helpful?
Bill
[noparse][[/noparse]Non-text portions of this message have been removed]
Comments
worry about solder splatter etc.
-kerry
At 01:04 PM 5/29/03 -0400, you wrote:
>Hi,
>
>I'm trying to use al Williams pak5 for pwm to control 3 trolling motors
from a bs2,,, I found a motor controller at diverse electronics, it uses 3
stamp lines per motor, so nine lines, plus a pwm line for each motor from
the pak5a. I'm using the pak 6 so I can use an AT keyboard to give commands
to the first stamp which talks to the motor control stamp.
>
>Has anyone else address large dc motors,, what controllers did you use?
>
>I tried this once before a few years ago and burnt up a couple of chips
with a bad ground. Now I'm trying again with the help of a friend who
also can't solder worth a darn (we are old). Anyone have any suggestions
for a good kit for making connections on breadboard between stamps and other
i.c.'s I don't want to solder if I can help it, even with a magnifier it's
an exercise in,,,,,,,, the random spewing of solder.
>
>I was able to get the pak 5 and 6 working ok, as I have saved my programs
from before, but wonder if there is a list of items that would make it easy
to do just about any connection required on a large breadboard, between the
stamps and the other i.c.s. Is there a good kit, or list of items that
might be helpful?
>
>Bill
>
>
>
>
>[noparse][[/noparse]Non-text portions of this message have been removed]
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
Very respectfully, your obedient servant.
Kerry
Admin@M...
WWW server hosting [url=Http://mntnweb.com]Http://mntnweb.com[/url]
Kerry Barlow
p.o. box 21
kirkwood ny
13795
607-775-1575
>
> I'm trying to use al Williams pak5 for pwm to control 3 trolling motors from a
bs2,,, I found a motor controller at diverse electronics, it uses 3 stamp lines
per motor, so nine lines, plus a pwm line for each motor from the pak5a. I'm
using the pak
6
> so I can use an AT keyboard to give commands to the first stamp which talks
to the motor control stamp.
>
> Has anyone else address large dc motors,, what controllers did you use?
>
> I tried this once before a few years ago and burnt up a couple of chips with a
bad ground. Now I'm trying again with the help of a friend who also can't
solder worth a darn (we are old). Anyone have any suggestions for a good kit
for making connec
t
> ions on breadboard between stamps and other i.c.'s I don't want to solder if
I can help it, even with a magnifier it's an exercise in,,,,,,,, the random
spewing of solder.
>
> I was able to get the pak 5 and 6 working ok, as I have saved my programs from
before, but wonder if there is a list of items that would make it easy to do
just about any connection required on a large breadboard, between the stamps and
the other i.c.s
.
> Is there a good kit, or list of items that might be helpful?
Breadboards and the like are great for prototypes but when it
comes to using your design in the field, what were advantages in
the lab quiclky become disadvantages: wires come lose, contacts
corrode, vibrations cause problems etc.
Wire-wrap is a possibility but you need good eyesight and excellent
manual dexterity for it yo be anything less than a nightmare.
Personally, I've spent a LOT of time tracing broken wires in
wirewrap designs....
I hate to say it, but solder is a necessary evil when it comes to
electronics. Perhaps you can recruit some help ?
Mark Hillier, VE6HVW
President, HVW Technologies Inc.
Canadian Distributors of Parallax Products and other Neat Stuff
Tel: (403)-730-8603 Fax: (403)-730-8903
http://www.HVWTech.com
** New Breadboard Voltage Regulator (BVR) -A plugable +5 Volt
power supply !
pretty sweet, and would save you a bunch of soldering!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2534636886&category=2
6209
(may word wrap, if it does, cut and paste it)
I have not tried it, but I'm real tempted to, rather than building my
own for a similar project.
-John
Original Message
From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Rebw45erW1xr-GtNxDIlGyhWuHCZNYdT6NHczdWeky-hSB3kHLmQKjD3O2bOmlZIHSGvTK8hLqmGpjuCtM8]bkatakis@a...[/url
Sent: Thursday, May 29, 2003 12:04 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
Hi,
I'm trying to use al Williams pak5 for pwm to control 3 trolling motors
from a bs2,,, I found a motor controller at diverse electronics, it
uses 3 stamp lines per motor, so nine lines, plus a pwm line for each
motor from the pak5a. I'm using the pak 6 so I can use an AT keyboard
to give commands to the first stamp which talks to the motor control
stamp.
Has anyone else address large dc motors,, what controllers did you use?
I tried this once before a few years ago and burnt up a couple of chips
with a bad ground. Now I'm trying again with the help of a friend who
also can't solder worth a darn (we are old). Anyone have any
suggestions for a good kit for making connections on breadboard between
stamps and other i.c.'s I don't want to solder if I can help it, even
with a magnifier it's an exercise in,,,,,,,, the random spewing of
solder.
I was able to get the pak 5 and 6 working ok, as I have saved my
programs from before, but wonder if there is a list of items that would
make it easy to do just about any connection required on a large
breadboard, between the stamps and the other i.c.s. Is there a good
kit, or list of items that might be helpful?
Bill
[noparse][[/noparse]Non-text portions of this message have been removed]
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject
and Body of the message will be ignored.
Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
http://www.dprg.org/gallery/rr2000b/0041.html
I do some breadboarding, but most of the time I just use a protoboard, with
wirewrap wire (soldered) for logic and 20-22 ga stranded wire for the power
stuff. Once you get the hang of it, you can make a very sturdy board. If you
want some photos, let me know.
Original Message
> Breadboards and the like are great for prototypes but when it
> comes to using your design in the field, what were advantages in
> the lab quiclky become disadvantages: wires come lose, contacts
> corrode, vibrations cause problems etc.
>
> Wire-wrap is a possibility but you need good eyesight and excellent
> manual dexterity for it yo be anything less than a nightmare.
> Personally, I've spent a LOT of time tracing broken wires in
> wirewrap designs....
>
> I hate to say it, but solder is a necessary evil when it comes to
> electronics. Perhaps you can recruit some help ?
glass for soldering and perhaps a good soldering person for the field
version. I checked out the motor controller and I couldn't see anything
about reversing the motors which we would need to do. Is there an
inexpensive shareware or freeware program for making circuit boards and what
kit would you use to make the boards. The diverse electronics motor
controller is at http://divelec.tripod.com/mc/mc7_specs.html it includes
sample software for the bs2. It uses fets so you have to be careful with
static. It's fully reversible and worked well on one trolling motor before
I accidentally popped a ground lead off of the keyboard chip and it died.
Price is $80 12-36vdc motor supply and uses ttl level voltage to ,, enable,
forward, reverse, and has a pwm input which I ran Al Williams pak 5 to. If
I could conquer the physical part of this, I know it would be a great little
underwater robot. Anyone up to a collaboration? Thanks for your input by
the way, it's great that people are willing to offer good advice.
Bill
Cure Cancer and Smallpox with your computer.
It runs as a screen-saver Sponsored by Intel:
http://members.ud.com/download/gold/
Original Message
From: "Mark Hillier" <Mark@H...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, May 29, 2003 2:37 PM
Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
>
>
> > Hi,
> >
> > I'm trying to use al Williams pak5 for pwm to control 3 trolling motors
from a bs2,,, I found a motor controller at diverse electronics, it uses 3
stamp lines per motor, so nine lines, plus a pwm line for each motor from
the pak5a. I'm using the pak
> 6
> > so I can use an AT keyboard to give commands to the first stamp which
talks to the motor control stamp.
> >
> > Has anyone else address large dc motors,, what controllers did you use?
> >
> > I tried this once before a few years ago and burnt up a couple of chips
with a bad ground. Now I'm trying again with the help of a friend who
also can't solder worth a darn (we are old). Anyone have any suggestions
for a good kit for making connec
> t
> > ions on breadboard between stamps and other i.c.'s I don't want to
solder if I can help it, even with a magnifier it's an exercise in,,,,,,,,
the random spewing of solder.
> >
> > I was able to get the pak 5 and 6 working ok, as I have saved my
programs from before, but wonder if there is a list of items that would make
it easy to do just about any connection required on a large breadboard,
between the stamps and the other i.c.s
> .
> > Is there a good kit, or list of items that might be helpful?
>
> Breadboards and the like are great for prototypes but when it
> comes to using your design in the field, what were advantages in
> the lab quiclky become disadvantages: wires come lose, contacts
> corrode, vibrations cause problems etc.
>
> Wire-wrap is a possibility but you need good eyesight and excellent
> manual dexterity for it yo be anything less than a nightmare.
> Personally, I've spent a LOT of time tracing broken wires in
> wirewrap designs....
>
> I hate to say it, but solder is a necessary evil when it comes to
> electronics. Perhaps you can recruit some help ?
>
> Mark Hillier, VE6HVW
> President, HVW Technologies Inc.
> Canadian Distributors of Parallax Products and other Neat Stuff
> Tel: (403)-730-8603 Fax: (403)-730-8903
> http://www.HVWTech.com
> ** New Breadboard Voltage Regulator (BVR) -A plugable +5 Volt
> power supply !
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
bkatakis@a... writes:
> Is there an
> inexpensive shareware or freeware program for making circuit boards and what
> kit would you use to make the boards.
<A HREF="www.expresspcb.com">www.expresspcb.com</A>
Free pcb layout software, verify your design and hit send (if you are hooked
up to the internet). In about 3 to 4 days high quality PCB's show up at your
door. I have used the service many times and am happy it.
[noparse][[/noparse]Non-text portions of this message have been removed]
coming my way. Seems as though I'll have to breadboard or protoboard then
goto a custom board. I could do the circuit board now since I know what
chips I'm using. Is there cheap/free software out there that helps design a
circuit board?
Cure Cancer and Smallpox with your computer.
It runs as a screen-saver Sponsored by Intel:
http://members.ud.com/download/gold/
Original Message
From: "Rodent" <daweasel@s...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, May 29, 2003 3:48 PM
Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
> Here is why breadboarding can be a problem:
>
> http://www.dprg.org/gallery/rr2000b/0041.html
>
> I do some breadboarding, but most of the time I just use a protoboard,
with
> wirewrap wire (soldered) for logic and 20-22 ga stranded wire for the
power
> stuff. Once you get the hang of it, you can make a very sturdy board. If
you
> want some photos, let me know.
>
>
Original Message
>
> > Breadboards and the like are great for prototypes but when it
> > comes to using your design in the field, what were advantages in
> > the lab quiclky become disadvantages: wires come lose, contacts
> > corrode, vibrations cause problems etc.
> >
> > Wire-wrap is a possibility but you need good eyesight and excellent
> > manual dexterity for it yo be anything less than a nightmare.
> > Personally, I've spent a LOT of time tracing broken wires in
> > wirewrap designs....
> >
> > I hate to say it, but solder is a necessary evil when it comes to
> > electronics. Perhaps you can recruit some help ?
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
check for conflicts, routing, etc... Some have more features, and others are
easier to use. Be sure you know what you are getting into before you commit
to a particular program. Some more or less lock you into using a particular
board house for manufacturing and make it difficult if you want to etch your
own boards.
I had all the board making and hand layout when I was much younger, so I
decided to let a shop make boards for me. I had good luck with Express PCB.
I had some generic BoEBot sized prototyping boards made a few months back
and the quality and service were great.
By the way, the robot in the photo was not mine. Here are a few of my big
BS2SX-powered robot though:
http://www.dprg.org/gallery/rr2003a/0152.html
http://www.dprg.org/gallery/rr2003a/0091.html
http://www.dprg.org/gallery/rr2003a/0090.html
Original Message
> I see what you mean, that link leads to a nightmare! I see a little of
that
> coming my way. Seems as though I'll have to breadboard or protoboard
then
> goto a custom board. I could do the circuit board now since I know what
> chips I'm using. Is there cheap/free software out there that helps design
a
> circuit board?
>
Original Message
> > Here is why breadboarding can be a problem:
> >
> > http://www.dprg.org/gallery/rr2000b/0041.html
> >
> > I do some breadboarding, but most of the time I just use a protoboard,
> with
> > wirewrap wire (soldered) for logic and 20-22 ga stranded wire for the
> power
> > stuff. Once you get the hang of it, you can make a very sturdy board. If
> you
> > want some photos, let me know.
> >
> >
Original Message
> >
> > > Breadboards and the like are great for prototypes but when it
> > > comes to using your design in the field, what were advantages in
> > > the lab quiclky become disadvantages: wires come lose, contacts
> > > corrode, vibrations cause problems etc.
> > >
> > > Wire-wrap is a possibility but you need good eyesight and excellent
> > > manual dexterity for it yo be anything less than a nightmare.
> > > Personally, I've spent a LOT of time tracing broken wires in
> > > wirewrap designs....
> > >
> > > I hate to say it, but solder is a necessary evil when it comes to
> > > electronics. Perhaps you can recruit some help ?
> >
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject
and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
Your Bot is a work of art. It must have taken a long time. What is the
competition you are in?
I installed the Express PC board software and am looking at it. I suddenly
realized that the pcb for both stamps would need another ic to change ttl
level stamp rs232 or (on pin 16 the -+10vdc )to rs 422 or something like
that , is there a chip you like for the transition that offers a good long
distance over the wire? Perhaps something that is a straight thru deal with
no software configuration.
Original Message
From: "Rodent" <daweasel@s...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, May 29, 2003 4:31 PM
Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
> Most of the free circuit board layout programs are totally manual and
don't
> check for conflicts, routing, etc... Some have more features, and others
are
> easier to use. Be sure you know what you are getting into before you
commit
> to a particular program. Some more or less lock you into using a
particular
> board house for manufacturing and make it difficult if you want to etch
your
> own boards.
>
> I had all the board making and hand layout when I was much younger, so I
> decided to let a shop make boards for me. I had good luck with Express
PCB.
> I had some generic BoEBot sized prototyping boards made a few months back
> and the quality and service were great.
>
> By the way, the robot in the photo was not mine. Here are a few of my big
> BS2SX-powered robot though:
>
> http://www.dprg.org/gallery/rr2003a/0152.html
>
> http://www.dprg.org/gallery/rr2003a/0091.html
>
> http://www.dprg.org/gallery/rr2003a/0090.html
>
>
Original Message
>
> > I see what you mean, that link leads to a nightmare! I see a little of
> that
> > coming my way. Seems as though I'll have to breadboard or protoboard
> then
> > goto a custom board. I could do the circuit board now since I know
what
> > chips I'm using. Is there cheap/free software out there that helps
design
> a
> > circuit board?
>
> >
Original Message
>
> > > Here is why breadboarding can be a problem:
> > >
> > > http://www.dprg.org/gallery/rr2000b/0041.html
> > >
> > > I do some breadboarding, but most of the time I just use a protoboard,
> > with
> > > wirewrap wire (soldered) for logic and 20-22 ga stranded wire for the
> > power
> > > stuff. Once you get the hang of it, you can make a very sturdy board.
If
> > you
> > > want some photos, let me know.
> > >
> > >
Original Message
> > >
> > > > Breadboards and the like are great for prototypes but when it
> > > > comes to using your design in the field, what were advantages in
> > > > the lab quiclky become disadvantages: wires come lose, contacts
> > > > corrode, vibrations cause problems etc.
> > > >
> > > > Wire-wrap is a possibility but you need good eyesight and excellent
> > > > manual dexterity for it yo be anything less than a nightmare.
> > > > Personally, I've spent a LOT of time tracing broken wires in
> > > > wirewrap designs....
> > > >
> > > > I hate to say it, but solder is a necessary evil when it comes to
> > > > electronics. Perhaps you can recruit some help ?
> > >
> > >
> > >
> > >
> > > To UNSUBSCRIBE, just send mail to:
> > > basicstamps-unsubscribe@yahoogroups.com
> > > from the same email address that you subscribed. Text in the Subject
> and
> > Body of the message will be ignored.
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject
and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
(and half of everything else) under a magnifying lamp I picked up at Lowe's
for about 30 bucks. I specifically hunted for one that uses an incandescent
lamp because the flickering of florescent light is starting to bug me.
I just finished a semester long class in soldering (including surface
mounts) at the local community college. Some of the kids laughed when I
brought in my magnifying lamp, but I managed to make better connections than
most of the "kids".
Don't give up!
-- Al Margolis, founder
www.hobbyengineering.com
The WEB's newest source for robotics supplies and information
Original Message
From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Re8VSqiS2Wtpn6FnWy3FdbviLPGkiYkemiVo6c0sPES72o74TpuOruIMxuN5oUdzuAEXTcyy2MZXn9MEcQ]bkatakis@a...[/url
Sent: Thursday, May 29, 2003 12:50 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
Ok so I can get a wire wrap kit for the breadboard and a stronger magnifying
glass for soldering and perhaps a good soldering person for the field
version. I checked out the motor controller and I couldn't see anything
about reversing the motors which we would need to do. Is there an
inexpensive shareware or freeware program for making circuit boards and what
kit would you use to make the boards. The diverse electronics motor
controller is at http://divelec.tripod.com/mc/mc7_specs.html it includes
sample software for the bs2. It uses fets so you have to be careful with
static. It's fully reversible and worked well on one trolling motor before
I accidentally popped a ground lead off of the keyboard chip and it died.
Price is $80 12-36vdc motor supply and uses ttl level voltage to ,, enable,
forward, reverse, and has a pwm input which I ran Al Williams pak 5 to. If
I could conquer the physical part of this, I know it would be a great little
underwater robot. Anyone up to a collaboration? Thanks for your input by
the way, it's great that people are willing to offer good advice.
Bill
Cure Cancer and Smallpox with your computer.
It runs as a screen-saver Sponsored by Intel:
http://members.ud.com/download/gold/
Original Message
From: "Mark Hillier" <Mark@H...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, May 29, 2003 2:37 PM
Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
>
>
> > Hi,
> >
> > I'm trying to use al Williams pak5 for pwm to control 3 trolling motors
from a bs2,,, I found a motor controller at diverse electronics, it uses 3
stamp lines per motor, so nine lines, plus a pwm line for each motor from
the pak5a. I'm using the pak
> 6
> > so I can use an AT keyboard to give commands to the first stamp which
talks to the motor control stamp.
> >
> > Has anyone else address large dc motors,, what controllers did you use?
> >
> > I tried this once before a few years ago and burnt up a couple of chips
with a bad ground. Now I'm trying again with the help of a friend who
also can't solder worth a darn (we are old). Anyone have any suggestions
for a good kit for making connec
> t
> > ions on breadboard between stamps and other i.c.'s I don't want to
solder if I can help it, even with a magnifier it's an exercise in,,,,,,,,
the random spewing of solder.
> >
> > I was able to get the pak 5 and 6 working ok, as I have saved my
programs from before, but wonder if there is a list of items that would make
it easy to do just about any connection required on a large breadboard,
between the stamps and the other i.c.s
> .
> > Is there a good kit, or list of items that might be helpful?
>
> Breadboards and the like are great for prototypes but when it
> comes to using your design in the field, what were advantages in
> the lab quiclky become disadvantages: wires come lose, contacts
> corrode, vibrations cause problems etc.
>
> Wire-wrap is a possibility but you need good eyesight and excellent
> manual dexterity for it yo be anything less than a nightmare.
> Personally, I've spent a LOT of time tracing broken wires in
> wirewrap designs....
>
> I hate to say it, but solder is a necessary evil when it comes to
> electronics. Perhaps you can recruit some help ?
>
> Mark Hillier, VE6HVW
> President, HVW Technologies Inc.
> Canadian Distributors of Parallax Products and other Neat Stuff
> Tel: (403)-730-8603 Fax: (403)-730-8903
> http://www.HVWTech.com
> ** New Breadboard Voltage Regulator (BVR) -A plugable +5 Volt
> power supply !
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
To UNSUBSCRIBE, just send mail to:
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with m.s. which changed things a bit regarding steadiness and vision. I
have a magnifier with a circular light on an extendable arm. It helps but
sometimes the eyes don't quite read it right. I think that for that part I
could get someone with a good eye to help out. The biggest problem for me
is sitting down and imagining the completed black boxes and populating the
board with components and the right attachments that will stand up to rugged
field use on the water. It's great that you showed up some of those
youngsters! That's one for our generation!!
Bill
Original Message
From: "Al Margolis(TX)" <al@b...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, May 29, 2003 5:56 PM
Subject: RE: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
> I know what you mean about the magnifying glass. I now do all my
soldering
> (and half of everything else) under a magnifying lamp I picked up at
Lowe's
> for about 30 bucks. I specifically hunted for one that uses an
incandescent
> lamp because the flickering of florescent light is starting to bug me.
>
> I just finished a semester long class in soldering (including surface
> mounts) at the local community college. Some of the kids laughed when I
> brought in my magnifying lamp, but I managed to make better connections
than
> most of the "kids".
>
> Don't give up!
>
> -- Al Margolis, founder
> www.hobbyengineering.com
> The WEB's newest source for robotics supplies and information
>
>
Original Message
> From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ge56HE6uSb8xSqcrwHxYC6La8IscFhZN7f94N7g_BuVH6GJyw43wsjOg81MIdldXkmiNWGoyPTM1so4]bkatakis@a...[/url
> Sent: Thursday, May 29, 2003 12:50 PM
> To: basicstamps@yahoogroups.com
> Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
> controller
>
>
> Ok so I can get a wire wrap kit for the breadboard and a stronger
magnifying
> glass for soldering and perhaps a good soldering person for the field
> version. I checked out the motor controller and I couldn't see anything
> about reversing the motors which we would need to do. Is there an
> inexpensive shareware or freeware program for making circuit boards and
what
> kit would you use to make the boards. The diverse electronics motor
> controller is at http://divelec.tripod.com/mc/mc7_specs.html it includes
> sample software for the bs2. It uses fets so you have to be careful with
> static. It's fully reversible and worked well on one trolling motor
before
> I accidentally popped a ground lead off of the keyboard chip and it died.
> Price is $80 12-36vdc motor supply and uses ttl level voltage to ,,
enable,
> forward, reverse, and has a pwm input which I ran Al Williams pak 5 to.
If
> I could conquer the physical part of this, I know it would be a great
little
> underwater robot. Anyone up to a collaboration? Thanks for your input
by
> the way, it's great that people are willing to offer good advice.
>
> Bill
>
> Cure Cancer and Smallpox with your computer.
> It runs as a screen-saver Sponsored by Intel:
> http://members.ud.com/download/gold/
>
>
Original Message
> From: "Mark Hillier" <Mark@H...>
> To: <basicstamps@yahoogroups.com>
> Sent: Thursday, May 29, 2003 2:37 PM
> Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
> controller
>
>
> >
> >
> > > Hi,
> > >
> > > I'm trying to use al Williams pak5 for pwm to control 3 trolling
motors
> from a bs2,,, I found a motor controller at diverse electronics, it uses
3
> stamp lines per motor, so nine lines, plus a pwm line for each motor from
> the pak5a. I'm using the pak
> > 6
> > > so I can use an AT keyboard to give commands to the first stamp which
> talks to the motor control stamp.
> > >
> > > Has anyone else address large dc motors,, what controllers did you
use?
> > >
> > > I tried this once before a few years ago and burnt up a couple of
chips
> with a bad ground. Now I'm trying again with the help of a friend who
> also can't solder worth a darn (we are old). Anyone have any suggestions
> for a good kit for making connec
> > t
> > > ions on breadboard between stamps and other i.c.'s I don't want to
> solder if I can help it, even with a magnifier it's an exercise in,,,,,,,,
> the random spewing of solder.
> > >
> > > I was able to get the pak 5 and 6 working ok, as I have saved my
> programs from before, but wonder if there is a list of items that would
make
> it easy to do just about any connection required on a large breadboard,
> between the stamps and the other i.c.s
> > .
> > > Is there a good kit, or list of items that might be helpful?
> >
> > Breadboards and the like are great for prototypes but when it
> > comes to using your design in the field, what were advantages in
> > the lab quiclky become disadvantages: wires come lose, contacts
> > corrode, vibrations cause problems etc.
> >
> > Wire-wrap is a possibility but you need good eyesight and excellent
> > manual dexterity for it yo be anything less than a nightmare.
> > Personally, I've spent a LOT of time tracing broken wires in
> > wirewrap designs....
> >
> > I hate to say it, but solder is a necessary evil when it comes to
> > electronics. Perhaps you can recruit some help ?
> >
> > Mark Hillier, VE6HVW
> > President, HVW Technologies Inc.
> > Canadian Distributors of Parallax Products and other Neat Stuff
> > Tel: (403)-730-8603 Fax: (403)-730-8903
> > http://www.HVWTech.com
> > ** New Breadboard Voltage Regulator (BVR) -A plugable +5 Volt
> > power supply !
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject
and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
> Body of the message will be ignored.
>
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>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
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>
>
>
I'm curious as to what soldering iron (assuming that you use an iron)
you use to solder surface mount stuff?
-Mark
On Thursday, May 29, 2003, at 05:56 PM, Al Margolis((TX)) wrote:
> I know what you mean about the magnifying glass. I now do all my
> soldering
> (and half of everything else) under a magnifying lamp I picked up at
> Lowe's
> for about 30 bucks. I specifically hunted for one that uses an
> incandescent
> lamp because the flickering of florescent light is starting to bug me.
>
> I just finished a semester long class in soldering (including surface
> mounts) at the local community college. Some of the kids laughed when
> I
> brought in my magnifying lamp, but I managed to make better
> connections than
> most of the "kids".
>
> Don't give up!
>
> -- Al Margolis, founder
> www.hobbyengineering.com
> The WEB's newest source for robotics supplies and information
>
>
Original Message
> From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=GA99JyAo9RaTZMLkJpwgAsqef0JxXFyIWXUuXyGIk_lTfTZ0aE250d6EpXAfHIHzsDOKdl_KHxQtVsxBU9l8]bkatakis@a...[/url
> Sent: Thursday, May 29, 2003 12:50 PM
> To: basicstamps@yahoogroups.com
> Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
> controller
>
>
> Ok so I can get a wire wrap kit for the breadboard and a stronger
> magnifying
> glass for soldering and perhaps a good soldering person for the field
> version. I checked out the motor controller and I couldn't see
> anything
> about reversing the motors which we would need to do. Is there an
> inexpensive shareware or freeware program for making circuit boards
> and what
> kit would you use to make the boards. The diverse electronics motor
> controller is at http://divelec.tripod.com/mc/mc7_specs.html it
> includes
> sample software for the bs2. It uses fets so you have to be careful
> with
> static. It's fully reversible and worked well on one trolling motor
> before
> I accidentally popped a ground lead off of the keyboard chip and it
> died.
> Price is $80 12-36vdc motor supply and uses ttl level voltage to ,,
> enable,
> forward, reverse, and has a pwm input which I ran Al Williams pak 5
> to. If
> I could conquer the physical part of this, I know it would be a great
> little
> underwater robot. Anyone up to a collaboration? Thanks for your
> input by
> the way, it's great that people are willing to offer good advice.
>
> Bill
>
> Cure Cancer and Smallpox with your computer.
> It runs as a screen-saver Sponsored by Intel:
> http://members.ud.com/download/gold/
>
>
Original Message
> From: "Mark Hillier" <Mark@H...>
> To: <basicstamps@yahoogroups.com>
> Sent: Thursday, May 29, 2003 2:37 PM
> Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
> controller
>
>
>>
>>
>>> Hi,
>>>
>>> I'm trying to use al Williams pak5 for pwm to control 3 trolling
>>> motors
> from a bs2,,, I found a motor controller at diverse electronics, it
> uses 3
> stamp lines per motor, so nine lines, plus a pwm line for each motor
> from
> the pak5a. I'm using the pak
>> 6
>>> so I can use an AT keyboard to give commands to the first stamp
>>> which
> talks to the motor control stamp.
>>>
>>> Has anyone else address large dc motors,, what controllers did you
>>> use?
>>>
>>> I tried this once before a few years ago and burnt up a couple of
>>> chips
> with a bad ground. Now I'm trying again with the help of a friend
> who
> also can't solder worth a darn (we are old). Anyone have any
> suggestions
> for a good kit for making connec
>> t
>>> ions on breadboard between stamps and other i.c.'s I don't want to
> solder if I can help it, even with a magnifier it's an exercise
> in,,,,,,,,
> the random spewing of solder.
>>>
>>> I was able to get the pak 5 and 6 working ok, as I have saved my
> programs from before, but wonder if there is a list of items that
> would make
> it easy to do just about any connection required on a large breadboard,
> between the stamps and the other i.c.s
>> .
>>> Is there a good kit, or list of items that might be helpful?
>>
>> Breadboards and the like are great for prototypes but when it
>> comes to using your design in the field, what were advantages in
>> the lab quiclky become disadvantages: wires come lose, contacts
>> corrode, vibrations cause problems etc.
>>
>> Wire-wrap is a possibility but you need good eyesight and excellent
>> manual dexterity for it yo be anything less than a nightmare.
>> Personally, I've spent a LOT of time tracing broken wires in
>> wirewrap designs....
>>
>> I hate to say it, but solder is a necessary evil when it comes to
>> electronics. Perhaps you can recruit some help ?
>>
>> Mark Hillier, VE6HVW
>> President, HVW Technologies Inc.
>> Canadian Distributors of Parallax Products and other Neat Stuff
>> Tel: (403)-730-8603 Fax: (403)-730-8903
>> http://www.HVWTech.com
>> ** New Breadboard Voltage Regulator (BVR) -A plugable +5 Volt
>> power supply !
>>
>>
>> To UNSUBSCRIBE, just send mail to:
>> basicstamps-unsubscribe@yahoogroups.com
>> from the same email address that you subscribed. Text in the Subject
>> and
> Body of the message will be ignored.
>>
>>
>> Your use of Yahoo! Groups is subject to
>> http://docs.yahoo.com/info/terms/
>>
>>
>>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject
> and
> Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
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> http://docs.yahoo.com/info/terms/
>
>
>
have evolved over the last couple of years. In that photo it was doing
wall-following. Fairly easy to do depending on the sensors and motor
control.
If you need to do some serious long-distance stuff, RS485 is the way to go.
Max485 chips are fairly easy to come by. You can get several hundred feet
out of a couple of Max232 chips at 300 baud with a good shielded wire
though.
Original Message
> Your Bot is a work of art. It must have taken a long time. What is the
> competition you are in?
>
> I installed the Express PC board software and am looking at it. I
suddenly
> realized that the pcb for both stamps would need another ic to change ttl
> level stamp rs232 or (on pin 16 the -+10vdc )to rs 422 or something like
> that , is there a chip you like for the transition that offers a good long
> distance over the wire? Perhaps something that is a straight thru deal
with
> no software configuration.
schematic design and pcb design and checks electrical complience between the
two. It also checks pcb layout conflicts and even has an auto-router and
extensive libraries. And, it is free for personal use! It can generate
files for the boards which can be processed by any board house.
Jim
http://www.geocities.com/jimforkin2003/
Original Message
From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=rs-CXKeE7qEX6Y3K9tMVn-OHPSzuuErvC55mkcjhIbe3MCIvgk_U9z2JkdSSilollfu4kohzY50OAlvnHALX]bkatakis@a...[/url
Sent: Thursday, May 29, 2003 4:20 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
I see what you mean, that link leads to a nightmare! I see a little of that
coming my way. Seems as though I'll have to breadboard or protoboard then
goto a custom board. I could do the circuit board now since I know what
chips I'm using. Is there cheap/free software out there that helps design a
circuit board?
Cure Cancer and Smallpox with your computer.
It runs as a screen-saver Sponsored by Intel:
http://members.ud.com/download/gold/
Original Message
From: "Rodent" <daweasel@s...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, May 29, 2003 3:48 PM
Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
> Here is why breadboarding can be a problem:
>
> http://www.dprg.org/gallery/rr2000b/0041.html
>
> I do some breadboarding, but most of the time I just use a protoboard,
with
> wirewrap wire (soldered) for logic and 20-22 ga stranded wire for the
power
> stuff. Once you get the hang of it, you can make a very sturdy board. If
you
> want some photos, let me know.
>
>
Original Message
>
> > Breadboards and the like are great for prototypes but when it
> > comes to using your design in the field, what were advantages in
> > the lab quiclky become disadvantages: wires come lose, contacts
> > corrode, vibrations cause problems etc.
> >
> > Wire-wrap is a possibility but you need good eyesight and excellent
> > manual dexterity for it yo be anything less than a nightmare.
> > Personally, I've spent a LOT of time tracing broken wires in
> > wirewrap designs....
> >
> > I hate to say it, but solder is a necessary evil when it comes to
> > electronics. Perhaps you can recruit some help ?
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
the 2 rs232 wires and supply current and ground to the chip? By the way
I've started to make the circuit board with the express pcb software. So
far so good. I still have to make the traces to Al Williams Chips for both
circuit boards and find the at keyboard connector, can't seem to find one in
the component library. I did find the ic sockets and the male 9 pin serial
connection to the pc. Does rs485 use rj45 wire?
Bill
"If you need to do some serious long-distance stuff, RS485 is the way to go.
Max485 chips are fairly easy to come by. You can get several hundred feet
out of a couple of Max232 chips at 300 baud with a good shielded wire
though."
>
> > Your Bot is a work of art. It must have taken a long time. What is the
> > competition you are in?
> >
> > I installed the Express PC board software and am looking at it. I
> suddenly
> > realized that the pcb for both stamps would need another ic to change
ttl
> > level stamp rs232 or (on pin 16 the -+10vdc )to rs 422 or something
like
> > that , is there a chip you like for the transition that offers a good
long
> > distance over the wire? Perhaps something that is a straight thru deal
> with
> > no software configuration.
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
Cure Cancer and Smallpox with your computer.
It runs as a screen-saver Sponsored by Intel:
http://members.ud.com/download/gold/
Original Message
From: "Bill Katakis" <bkatakis@a...>
To: <basicstamps@yahoogroups.com>
Sent: Saturday, May 31, 2003 10:34 AM
Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
> Is this a maxim chip? I'm trying to find a data sheet. Do I just plug in
> the 2 rs232 wires and supply current and ground to the chip? By the way
> I've started to make the circuit board with the express pcb software. So
> far so good. I still have to make the traces to Al Williams Chips for
both
> circuit boards and find the at keyboard connector, can't seem to find one
in
> the component library. I did find the ic sockets and the male 9 pin
serial
> connection to the pc. Does rs485 use rj45 wire?
>
> Bill
>
> "If you need to do some serious long-distance stuff, RS485 is the way to
go.
> Max485 chips are fairly easy to come by. You can get several hundred feet
> out of a couple of Max232 chips at 300 baud with a good shielded wire
> though."
>
>
>
> >
> > > Your Bot is a work of art. It must have taken a long time. What is
the
> > > competition you are in?
> > >
> > > I installed the Express PC board software and am looking at it. I
> > suddenly
> > > realized that the pcb for both stamps would need another ic to change
> ttl
> > > level stamp rs232 or (on pin 16 the -+10vdc )to rs 422 or something
> like
> > > that , is there a chip you like for the transition that offers a good
> long
> > > distance over the wire? Perhaps something that is a straight thru deal
> > with
> > > no software configuration.
> >
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject
and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
Belden 2-conductor shielded wire for our RS485 (8760 I think), with the
shield tied to chassis ground on one end only.
Keep in mind you still need some sort of software error correction to make
sure data are sent cleanly.
Original Message
> Is this a maxim chip? I'm trying to find a data sheet. Do I just plug in
> the 2 rs232 wires and supply current and ground to the chip? By the way
> I've started to make the circuit board with the express pcb software. So
> far so good. I still have to make the traces to Al Williams Chips for
both
> circuit boards and find the at keyboard connector, can't seem to find one
in
> the component library. I did find the ic sockets and the male 9 pin
serial
> connection to the pc. Does rs485 use rj45 wire?
>
> Bill
>
> "If you need to do some serious long-distance stuff, RS485 is the way to
go.
> Max485 chips are fairly easy to come by. You can get several hundred feet
> out of a couple of Max232 chips at 300 baud with a good shielded wire
> though."
Cure Cancer and Smallpox with your computer.
It runs as a screen-saver Sponsored by Intel:
http://members.ud.com/download/gold/
Original Message
From: "Rodent" <daweasel@s...>
To: <basicstamps@yahoogroups.com>
Sent: Saturday, May 31, 2003 11:40 AM
Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
controller
> RS485 chips are a Dallas / Maxim part. May be some generics as well. We
used
> Belden 2-conductor shielded wire for our RS485 (8760 I think), with the
> shield tied to chassis ground on one end only.
>
> Keep in mind you still need some sort of software error correction to make
> sure data are sent cleanly.
>
>
Original Message
>
> > Is this a maxim chip? I'm trying to find a data sheet. Do I just plug
in
> > the 2 rs232 wires and supply current and ground to the chip? By the way
> > I've started to make the circuit board with the express pcb software.
So
> > far so good. I still have to make the traces to Al Williams Chips for
> both
> > circuit boards and find the at keyboard connector, can't seem to find
one
> in
> > the component library. I did find the ic sockets and the male 9 pin
> serial
> > connection to the pc. Does rs485 use rj45 wire?
> >
> > Bill
> >
> > "If you need to do some serious long-distance stuff, RS485 is the way to
> go.
> > Max485 chips are fairly easy to come by. You can get several hundred
feet
> > out of a couple of Max232 chips at 300 baud with a good shielded wire
> > though."
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
modules.
Original Message
> what type of software error correction could the stamp2 handle?
>
Original Message
> > RS485 chips are a Dallas / Maxim part. May be some generics as well. We
> used
> > Belden 2-conductor shielded wire for our RS485 (8760 I think), with the
> > shield tied to chassis ground on one end only.
> >
> > Keep in mind you still need some sort of software error correction to
make
> > sure data are sent cleanly.
> >
> >
Original Message
> >
> > > Is this a maxim chip? I'm trying to find a data sheet. Do I just plug
> in
> > > the 2 rs232 wires and supply current and ground to the chip? By the
way
> > > I've started to make the circuit board with the express pcb software.
> So
> > > far so good. I still have to make the traces to Al Williams Chips for
> > both
> > > circuit boards and find the at keyboard connector, can't seem to find
> one
> > in
> > > the component library. I did find the ic sockets and the male 9 pin
> > serial
> > > connection to the pc. Does rs485 use rj45 wire?
> > >
> > > Bill
> > >
> > > "If you need to do some serious long-distance stuff, RS485 is the way
to
> > go.
> > > Max485 chips are fairly easy to come by. You can get several hundred
> feet
> > > out of a couple of Max232 chips at 300 baud with a good shielded wire
> > > though."
Check out
http://www.parallax.com/downloads/documentation/app/kit/appkit_sn75176
_rs-485_communication.pdf
on the parallax web-site.
'485 will go 4000 feet, but you must have the right
terminating resistors, etc. See the above.
--- In basicstamps@yahoogroups.com, "Bill Katakis" <bkatakis@a...>
wrote:
> Is this a maxim chip? I'm trying to find a data sheet. Do I just
plug in
> the 2 rs232 wires and supply current and ground to the chip? By
the way
> I've started to make the circuit board with the express pcb
software. So
> far so good. I still have to make the traces to Al Williams Chips
for both
> circuit boards and find the at keyboard connector, can't seem to
find one in
> the component library. I did find the ic sockets and the male 9
pin serial
> connection to the pc. Does rs485 use rj45 wire?
>
> Bill
>
> "If you need to do some serious long-distance stuff, RS485 is the
way to go.
> Max485 chips are fairly easy to come by. You can get several
hundred feet
> out of a couple of Max232 chips at 300 baud with a good shielded
wire
> though."
>
>
>
> >
> > > Your Bot is a work of art. It must have taken a long time.
What is the
> > > competition you are in?
> > >
> > > I installed the Express PC board software and am looking at
it. I
> > suddenly
> > > realized that the pcb for both stamps would need another ic to
change
> ttl
> > > level stamp rs232 or (on pin 16 the -+10vdc )to rs 422 or
something
> like
> > > that , is there a chip you like for the transition that offers
a good
> long
> > > distance over the wire? Perhaps something that is a straight
thru deal
> > with
> > > no software configuration.
> >
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the
Subject and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
a message which always starts with a 'sync' byte
(<FF> typical), has a fixed number of data bytes,
then has a simple check-sum byte at the end
(sum all bytes, AND with 255, and send the
result byte).
You can combine this with a simple ACK/NACK
sequence (Sender sends, Receiver recieves and
checks checksum, sends back an 'ACK' if good,
'NACK' if no good.)
This won't detect 'swapped' bytes in your message,
but should detect most typical Stamp errors
(started listening too late, wrong baud rates,
receiver off)
--- In basicstamps@yahoogroups.com, "Bill Katakis" <bkatakis@a...>
wrote:
> what type of software error correction could the stamp2 handle?
>
> Cure Cancer and Smallpox with your computer.
> It runs as a screen-saver Sponsored by Intel:
> http://members.ud.com/download/gold/
>
>
Original Message
> From: "Rodent" <daweasel@s...>
> To: <basicstamps@yahoogroups.com>
> Sent: Saturday, May 31, 2003 11:40 AM
> Subject: Re: [noparse][[/noparse]basicstamps] stamp for 3 trolling motors, which motor
> controller
>
>
> > RS485 chips are a Dallas / Maxim part. May be some generics as
well. We
> used
> > Belden 2-conductor shielded wire for our RS485 (8760 I think),
with the
> > shield tied to chassis ground on one end only.
> >
> > Keep in mind you still need some sort of software error
correction to make
> > sure data are sent cleanly.
> >
> >
Original Message
> >
> > > Is this a maxim chip? I'm trying to find a data sheet. Do I
just plug
> in
> > > the 2 rs232 wires and supply current and ground to the chip?
By the way
> > > I've started to make the circuit board with the express pcb
software.
> So
> > > far so good. I still have to make the traces to Al Williams
Chips for
> > both
> > > circuit boards and find the at keyboard connector, can't seem
to find
> one
> > in
> > > the component library. I did find the ic sockets and the male
9 pin
> > serial
> > > connection to the pc. Does rs485 use rj45 wire?
> > >
> > > Bill
> > >
> > > "If you need to do some serious long-distance stuff, RS485 is
the way to
> > go.
> > > Max485 chips are fairly easy to come by. You can get several
hundred
> feet
> > > out of a couple of Max232 chips at 300 baud with a good
shielded wire
> > > though."
> >
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the
Subject and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >