pwmpal
Archiver
Posts: 46,084
Thanks John
great chip i just ordered it, but i got a couple question about it
in the pdf documentation on simple motor control, in the serout statement
you use
48 + motor control, so why 48
and whoud you have a more complete example of an hbridge control program
thanks great chip and good timing
John
maker of JORO2
[noparse][[/noparse]Non-text portions of this message have been removed]
great chip i just ordered it, but i got a couple question about it
in the pdf documentation on simple motor control, in the serout statement
you use
48 + motor control, so why 48
and whoud you have a more complete example of an hbridge control program
thanks great chip and good timing
John
maker of JORO2
[noparse][[/noparse]Non-text portions of this message have been removed]
Comments
constant and not have to change multiple SEROUT lines. The ASCII
character for "0" is 48, so with MotorNum values of 1 to 4, that
expression will evaluate to "1" to "4". Think of
48 + MotorNum
...as a number-to-ASCII conversion.
Please keep in mind that the purpose of documentation is to explain the
features of a product, but not necessarily to show every possible
iteration of those features. As with most other products we've
developed, there will be specific application notes that follow; most
likely an H-Bridge application will be among them. I was exploring
possible configurations for control just yesterday.
-- Jon Williams
-- Parallax
Original Message
From: John Courtney [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=SHtPm7NyRILRJogTwBcfNGMm-xt01Oxcyuzu7GnF_p4ShzxjK5d9m5_RqZmTpimHGVlv31EdI3O_PPnCwg]johneck790@s...[/url
Sent: Friday, June 27, 2003 8:58 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] pwmpal
Thanks John
great chip i just ordered it, but i got a couple question about it
in the pdf documentation on simple motor control, in the serout
statement you use
48 + motor control, so why 48
and whoud you have a more complete example of an hbridge control program
thanks great chip and good timing
John
maker of JORO2
[noparse][[/noparse]Non-text portions of this message have been removed]
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How about an example of a really big mosfet h-bridge, something that would
do say 20 amps dc at 8-24 volts, and an example software for real time
control with reversing and of course the variable speed.
Bill
Original Message
From: Jon Williams [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=3kB9-My0fzS-a1npSnTIlshfcOM_jn3b4E4XNOer59SKVme63ms_oSu4oyCD_fOawlhI4PSlT1wMZS7BxL98XQ]jwilliams@p...[/url
Sent: Friday, June 27, 2003 10:45 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
The demo code uses 48 + MotorNum so that you can change the MotorNum
constant and not have to change multiple SEROUT lines. The ASCII
character for "0" is 48, so with MotorNum values of 1 to 4, that
expression will evaluate to "1" to "4". Think of
48 + MotorNum
...as a number-to-ASCII conversion.
Please keep in mind that the purpose of documentation is to explain the
features of a product, but not necessarily to show every possible
iteration of those features. As with most other products we've
developed, there will be specific application notes that follow; most
likely an H-Bridge application will be among them. I was exploring
possible configurations for control just yesterday.
-- Jon Williams
-- Parallax
Original Message
From: John Courtney [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=YIGhUbND-aMR8z5Q-5Dz2OmjOighmoCWKCTBlf5eAue7Q00Tov6a8Kivdn-S-H_bT-8XjWvJsqOL57Pmdco7DA]johneck790@s...[/url
Sent: Friday, June 27, 2003 8:58 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] pwmpal
Thanks John
great chip i just ordered it, but i got a couple question about it
in the pdf documentation on simple motor control, in the serout
statement you use
48 + motor control, so why 48
and whoud you have a more complete example of an hbridge control program
thanks great chip and good timing
John
maker of JORO2
[noparse][[/noparse]Non-text portions of this message have been removed]
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robots -- 20 amps would make any of them turn into a small, smoldering
pile of carbon.
But I'll bet there are more than a few Stamp users that do what you're
looking for. For the person who creates the first really good app that
meets Bill's need, I could probably offer up a nice little prize. Any
takers?
-- Jon Williams
-- Applications Engineer
-- Parallax
Original Message
From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=DREzcSDNkBbSXiy8gT0bGRG8CKjx5RtVDd7EpCVFOE_bQwgxnmSoaSF9Oa_-pWVHJgo_4Oq7NxHEQKln12k]bkatakis@a...[/url
Sent: Saturday, June 28, 2003 12:18 PM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
John,
How about an example of a really big mosfet h-bridge, something that
would do say 20 amps dc at 8-24 volts, and an example software for real
time control with reversing and of course the variable speed.
Bill
Original Message
From: Jon Williams [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=PGfcNNkExOPYXRU4A5YvHO0f9auUrOHm6Pi2FCUwq-CqJRnxEotllDU7sxAEjhRa-yNmlMPJvY9hrmyU]jwilliams@p...[/url
Sent: Friday, June 27, 2003 10:45 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
The demo code uses 48 + MotorNum so that you can change the MotorNum
constant and not have to change multiple SEROUT lines. The ASCII
character for "0" is 48, so with MotorNum values of 1 to 4, that
expression will evaluate to "1" to "4". Think of
48 + MotorNum
...as a number-to-ASCII conversion.
Please keep in mind that the purpose of documentation is to explain the
features of a product, but not necessarily to show every possible
iteration of those features. As with most other products we've
developed, there will be specific application notes that follow; most
likely an H-Bridge application will be among them. I was exploring
possible configurations for control just yesterday.
-- Jon Williams
-- Parallax
Original Message
From: John Courtney [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=bTrQ7bukds4Jix82F3_PhhqsaOkuK8bWaAu6e7xF_8cAFYCKrchNnk_PebTNCerWC8VTdXpY23_nCauWz11qnHo]johneck790@s...[/url
Sent: Friday, June 27, 2003 8:58 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] pwmpal
Thanks John
great chip i just ordered it, but i got a couple question about it
in the pdf documentation on simple motor control, in the serout
statement you use
48 + motor control, so why 48
and whoud you have a more complete example of an hbridge control program
thanks great chip and good timing
John
maker of JORO2
[noparse][[/noparse]Non-text portions of this message have been removed]
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wrote:
> It probably won't be any time soon (from us) because we focus on
small
> robots -- 20 amps would make any of them turn into a small,
smoldering
> pile of carbon.
>
> But I'll bet there are more than a few Stamp users that do what
you're
> looking for. For the person who creates the first really good app
that
> meets Bill's need, I could probably offer up a nice little prize.
Any
> takers?
>
> -- Jon Williams
> -- Applications Engineer
> -- Parallax
>
Nice Jon,
but what about the rest of us who dont need a 20 amps hbridge,
it would be nice to have the same contest for an good app for a 6v
to 12v hbridge with the pwmpal for small motors
John
>
>
Original Message
> From: Bill Katakis [noparse][[/noparse]mailto:bkatakis@a...]
> Sent: Saturday, June 28, 2003 12:18 PM
> To: basicstamps@yahoogroups.com
> Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>
>
> John,
>
> How about an example of a really big mosfet h-bridge, something
that
> would do say 20 amps dc at 8-24 volts, and an example software for
real
> time control with reversing and of course the variable speed.
>
>
>
> Bill
>
>
Original Message
> From: Jon Williams [noparse][[/noparse]mailto:jwilliams@p...]
> Sent: Friday, June 27, 2003 10:45 AM
> To: basicstamps@yahoogroups.com
> Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>
>
> The demo code uses 48 + MotorNum so that you can change the
MotorNum
> constant and not have to change multiple SEROUT lines. The ASCII
> character for "0" is 48, so with MotorNum values of 1 to 4, that
> expression will evaluate to "1" to "4". Think of
>
> 48 + MotorNum
>
> ...as a number-to-ASCII conversion.
>
> Please keep in mind that the purpose of documentation is to
explain the
> features of a product, but not necessarily to show every possible
> iteration of those features. As with most other products we've
> developed, there will be specific application notes that follow;
most
> likely an H-Bridge application will be among them. I was exploring
> possible configurations for control just yesterday.
>
> -- Jon Williams
> -- Parallax
>
>
>
>
>
Original Message
> From: John Courtney [noparse][[/noparse]mailto:johneck790@s...]
> Sent: Friday, June 27, 2003 8:58 AM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] pwmpal
>
>
> Thanks John
>
> great chip i just ordered it, but i got a couple question about it
>
> in the pdf documentation on simple motor control, in the serout
> statement you use
>
> 48 + motor control, so why 48
>
> and whoud you have a more complete example of an hbridge control
program
>
> thanks great chip and good timing
>
>
>
> John
>
>
>
> maker of JORO2
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
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>
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>
>
>
>
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Gilliland's Microcontroller Application Cookbooks -- that we publish)
for low-voltage motors that it really wouldn't be contest -- just who
could submit a schematic first. The contest will apply to high-voltage,
high-current motors.
-- Jon Williams
-- Parallax
Original Message
From: johneck26 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=KZG6LSr8pu0WwqOcZ6wOx__fgeP3PDoRnDt1KEDQepU2GBXVvSiWmMmg6uq_tdFpA2JXN_1deLvhvnIRW39dlQ]johneck790@s...[/url
Sent: Tuesday, July 01, 2003 1:38 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Re: pwmpal
--- In basicstamps@yahoogroups.com, "Jon Williams" <jwilliams@p...>
wrote:
> It probably won't be any time soon (from us) because we focus on
small
> robots -- 20 amps would make any of them turn into a small,
smoldering
> pile of carbon.
>
> But I'll bet there are more than a few Stamp users that do what
you're
> looking for. For the person who creates the first really good app
that
> meets Bill's need, I could probably offer up a nice little prize.
Any
> takers?
>
> -- Jon Williams
> -- Applications Engineer
> -- Parallax
>
Nice Jon,
but what about the rest of us who dont need a 20 amps hbridge, it would
be nice to have the same contest for an good app for a 6v
to 12v hbridge with the pwmpal for small motors
John
>
>
Original Message
> From: Bill Katakis [noparse][[/noparse]mailto:bkatakis@a...]
> Sent: Saturday, June 28, 2003 12:18 PM
> To: basicstamps@yahoogroups.com
> Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>
>
> John,
>
> How about an example of a really big mosfet h-bridge, something
that
> would do say 20 amps dc at 8-24 volts, and an example software for
real
> time control with reversing and of course the variable speed.
>
>
>
> Bill
>
>
Original Message
> From: Jon Williams [noparse][[/noparse]mailto:jwilliams@p...]
> Sent: Friday, June 27, 2003 10:45 AM
> To: basicstamps@yahoogroups.com
> Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>
>
> The demo code uses 48 + MotorNum so that you can change the
MotorNum
> constant and not have to change multiple SEROUT lines. The ASCII
> character for "0" is 48, so with MotorNum values of 1 to 4, that
> expression will evaluate to "1" to "4". Think of
>
> 48 + MotorNum
>
> ...as a number-to-ASCII conversion.
>
> Please keep in mind that the purpose of documentation is to
explain the
> features of a product, but not necessarily to show every possible
> iteration of those features. As with most other products we've
> developed, there will be specific application notes that follow;
most
> likely an H-Bridge application will be among them. I was exploring
> possible configurations for control just yesterday.
>
> -- Jon Williams
> -- Parallax
>
>
>
>
>
Original Message
> From: John Courtney [noparse][[/noparse]mailto:johneck790@s...]
> Sent: Friday, June 27, 2003 8:58 AM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] pwmpal
>
>
> Thanks John
>
> great chip i just ordered it, but i got a couple question about it
>
> in the pdf documentation on simple motor control, in the serout
> statement you use
>
> 48 + motor control, so why 48
>
> and whoud you have a more complete example of an hbridge control
program
>
> thanks great chip and good timing
>
>
>
> John
>
>
>
> maker of JORO2
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
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Subject
> and Body of the message will be ignored.
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>
>
>
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i will refrased my request... i also have dozens of hbridges
circuits,
no want i would like, is the listing of a small program that control
the 4 directions of a small robot using any hbridge and your new
pwmpal circuit. I'm over sixty and got no problem with electronics,
but got a hard time with programming and i really want to learn...
thanks in advance.
John
--- In basicstamps@yahoogroups.com, "Jon Williams" <jwilliams@p...>
wrote:
> There are so many circuits available (including several in Matt
> Gilliland's Microcontroller Application Cookbooks -- that we
publish)
> for low-voltage motors that it really wouldn't be contest -- just
who
> could submit a schematic first. The contest will apply to high-
voltage,
> high-current motors.
>
> -- Jon Williams
> -- Parallax
>
>
Original Message
> From: johneck26 [noparse][[/noparse]mailto:johneck790@s...]
> Sent: Tuesday, July 01, 2003 1:38 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Re: pwmpal
>
>
> --- In basicstamps@yahoogroups.com, "Jon Williams"
<jwilliams@p...>
> wrote:
> > It probably won't be any time soon (from us) because we focus on
> small
> > robots -- 20 amps would make any of them turn into a small,
> smoldering
> > pile of carbon.
> >
> > But I'll bet there are more than a few Stamp users that do what
> you're
> > looking for. For the person who creates the first really good
app
> that
> > meets Bill's need, I could probably offer up a nice little prize.
> Any
> > takers?
> >
> > -- Jon Williams
> > -- Applications Engineer
> > -- Parallax
> >
>
> Nice Jon,
>
> but what about the rest of us who dont need a 20 amps hbridge, it
would
> be nice to have the same contest for an good app for a 6v
> to 12v hbridge with the pwmpal for small motors
>
> John
> >
> >
Original Message
> > From: Bill Katakis [noparse][[/noparse]mailto:bkatakis@a...]
> > Sent: Saturday, June 28, 2003 12:18 PM
> > To: basicstamps@yahoogroups.com
> > Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
> >
> >
> > John,
> >
> > How about an example of a really big mosfet h-bridge, something
> that
> > would do say 20 amps dc at 8-24 volts, and an example software
for
> real
> > time control with reversing and of course the variable speed.
> >
> >
> >
> > Bill
> >
> >
Original Message
> > From: Jon Williams [noparse][[/noparse]mailto:jwilliams@p...]
> > Sent: Friday, June 27, 2003 10:45 AM
> > To: basicstamps@yahoogroups.com
> > Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
> >
> >
> > The demo code uses 48 + MotorNum so that you can change the
> MotorNum
> > constant and not have to change multiple SEROUT lines. The
ASCII
> > character for "0" is 48, so with MotorNum values of 1 to 4, that
> > expression will evaluate to "1" to "4". Think of
> >
> > 48 + MotorNum
> >
> > ...as a number-to-ASCII conversion.
> >
> > Please keep in mind that the purpose of documentation is to
> explain the
> > features of a product, but not necessarily to show every
possible
> > iteration of those features. As with most other products we've
> > developed, there will be specific application notes that follow;
> most
> > likely an H-Bridge application will be among them. I was
exploring
> > possible configurations for control just yesterday.
> >
> > -- Jon Williams
> > -- Parallax
> >
> >
> >
> >
> >
Original Message
> > From: John Courtney [noparse][[/noparse]mailto:johneck790@s...]
> > Sent: Friday, June 27, 2003 8:58 AM
> > To: basicstamps@yahoogroups.com
> > Subject: [noparse][[/noparse]basicstamps] pwmpal
> >
> >
> > Thanks John
> >
> > great chip i just ordered it, but i got a couple question about
it
> >
> > in the pdf documentation on simple motor control, in the serout
> > statement you use
> >
> > 48 + motor control, so why 48
> >
> > and whoud you have a more complete example of an hbridge control
> program
> >
> > thanks great chip and good timing
> >
> >
> >
> > John
> >
> >
> >
> > maker of JORO2
> >
> > [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/
> >
> >
> >
> >
> >
> >
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to
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> >
> >
> >
> >
> >
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http://www.robotpower.com/downloads/
Several people have contributed to make a large h-bridge DC motor controller
that can handle 12-24 DC at up to 140 Amps. (like they use on battlebots)
The site has downloadable parts lists, schematics, even the Gerber files to
get boards made.
So what did I win Jon? ;-) (just kidding)
-William
Original Message
From: Jon Williams <jwilliams@p...>
To: basicstamps@yahoogroups.com <basicstamps@yahoogroups.com>
Date: Sunday, June 29, 2003 10:58 AM
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>It probably won't be any time soon (from us) because we focus on small
>robots -- 20 amps would make any of them turn into a small, smoldering
>pile of carbon.
>
>But I'll bet there are more than a few Stamp users that do what you're
>looking for. For the person who creates the first really good app that
>meets Bill's need, I could probably offer up a nice little prize. Any
>takers?
>
>-- Jon Williams
>-- Applications Engineer
>-- Parallax
>
>
>
Original Message
>From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=c5hY86FFEE0Kq2yNAGi3y6FOwtacw0fi0L41hjwLXXtzLHj4lqf7oL67fE8zTzZzjJjSjd7FLFt0icuS6T98rQ]bkatakis@a...[/url
>Sent: Saturday, June 28, 2003 12:18 PM
>To: basicstamps@yahoogroups.com
>Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>
>
>John,
>
>How about an example of a really big mosfet h-bridge, something that
>would do say 20 amps dc at 8-24 volts, and an example software for real
>time control with reversing and of course the variable speed.
>
>
>
>Bill
>
>
Original Message
>From: Jon Williams [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ZsmMoM32VzHPdEnsAGJnye6UazO5BoVQ7HVtpsveJWEae84drP8Ed1_IGl9N-7-gHJgsFcgiH8IXzMcRtw]jwilliams@p...[/url
>Sent: Friday, June 27, 2003 10:45 AM
>To: basicstamps@yahoogroups.com
>Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>
>
>The demo code uses 48 + MotorNum so that you can change the MotorNum
>constant and not have to change multiple SEROUT lines. The ASCII
>character for "0" is 48, so with MotorNum values of 1 to 4, that
>expression will evaluate to "1" to "4". Think of
>
> 48 + MotorNum
>
>...as a number-to-ASCII conversion.
>
>Please keep in mind that the purpose of documentation is to explain the
>features of a product, but not necessarily to show every possible
>iteration of those features. As with most other products we've
>developed, there will be specific application notes that follow; most
>likely an H-Bridge application will be among them. I was exploring
>possible configurations for control just yesterday.
>
>-- Jon Williams
>-- Parallax
>
>
>
>
>
Original Message
>From: John Courtney [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=wiNzcdxuMDnAK4pY8UVmEwQWLEpPQ_33io8_6ED8oJXmAvhiCR0EYtwOAQAHxkwW69MlR56AxjwrohtNni-DSbbU]johneck790@s...[/url
>Sent: Friday, June 27, 2003 8:58 AM
>To: basicstamps@yahoogroups.com
>Subject: [noparse][[/noparse]basicstamps] pwmpal
>
>
>Thanks John
>
>great chip i just ordered it, but i got a couple question about it
>
>in the pdf documentation on simple motor control, in the serout
>statement you use
>
>48 + motor control, so why 48
>
>and whoud you have a more complete example of an hbridge control program
>
>thanks great chip and good timing
>
>
>
>John
>
>
>
>maker of JORO2
>
>[noparse][[/noparse]Non-text portions of this message have been removed]
>
>
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>
>
the controller for different d.c. voltages. It has a pwm input lug, 2 for
direction, one for on/off, so 3 stamp lines per motor if you are using
another chip for pwm like the pwmpal.
http://divelec.tripod.com/mc/mc7_specs.html
Bill
Original Message
From: Jon Williams [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=-Lh_FLYSGoEIwl0QH4T-fbQDfap1ZKLfmq6Okl6eo2pTs9O08B5BI292nX5TVntKybptwSY6-6ZJenignw]jwilliams@p...[/url
Sent: Sunday, June 29, 2003 11:58 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
It probably won't be any time soon (from us) because we focus on small
robots -- 20 amps would make any of them turn into a small, smoldering
pile of carbon.
But I'll bet there are more than a few Stamp users that do what you're
looking for. For the person who creates the first really good app that
meets Bill's need, I could probably offer up a nice little prize. Any
takers?
-- Jon Williams
-- Applications Engineer
-- Parallax
Original Message
From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=HGX72u5-vFDRZMuhRQghjrPlz2wcVWXiCIS_291Gwv5psQRCGVEZfj1aTmvgozxRdkabx-ZIQQ-XbQDY]bkatakis@a...[/url
Sent: Saturday, June 28, 2003 12:18 PM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
John,
How about an example of a really big mosfet h-bridge, something that
would do say 20 amps dc at 8-24 volts, and an example software for real
time control with reversing and of course the variable speed.
Bill
Original Message
From: Jon Williams [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=-Lh_FLYSGoEIwl0QH4T-fbQDfap1ZKLfmq6Okl6eo2pTs9O08B5BI292nX5TVntKybptwSY6-6ZJenignw]jwilliams@p...[/url
Sent: Friday, June 27, 2003 10:45 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
The demo code uses 48 + MotorNum so that you can change the MotorNum
constant and not have to change multiple SEROUT lines. The ASCII
character for "0" is 48, so with MotorNum values of 1 to 4, that
expression will evaluate to "1" to "4". Think of
48 + MotorNum
...as a number-to-ASCII conversion.
Please keep in mind that the purpose of documentation is to explain the
features of a product, but not necessarily to show every possible
iteration of those features. As with most other products we've
developed, there will be specific application notes that follow; most
likely an H-Bridge application will be among them. I was exploring
possible configurations for control just yesterday.
-- Jon Williams
-- Parallax
Original Message
From: John Courtney [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=azBwdWu8CwviO1CkF2lcusu5YIHIJ7ddPkQ67hQPDrkQBp9-ZAs9nJ0a2poIVL2skMWyVVOyJ0SJzAoKKYu7]johneck790@s...[/url
Sent: Friday, June 27, 2003 8:58 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] pwmpal
Thanks John
great chip i just ordered it, but i got a couple question about it
in the pdf documentation on simple motor control, in the serout
statement you use
48 + motor control, so why 48
and whoud you have a more complete example of an hbridge control program
thanks great chip and good timing
John
maker of JORO2
[noparse][[/noparse]Non-text portions of this message have been removed]
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I looked the site over, it isn't cheap when you consider I'd need 3
independent motor controllers, but might work, do you have a link to the
logic input specs of the OSMC motor controller? Take a look at the link on
my previous post and tell me what you think.
Here it is again.
http://www.docguide.com/news/content.nsf/news/8525697700573E1885256D4E006622
58?OpenDocument&id=09847527A9E7845A852568F10053D7C8&c=&count=10
Original Message
From: William [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=a24qzp-43rZd9Edz6Hr1qQw18P2Pc0KIm5Wpflb2YzwQKfHKx0HWnaCaVyUU4pCa]wb@i...[/url
Sent: Wednesday, July 02, 2003 5:49 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] pwmpal
Take a look at the OSMC web site... Open Source Motor Control.
http://www.robotpower.com/downloads/
Several people have contributed to make a large h-bridge DC motor controller
that can handle 12-24 DC at up to 140 Amps. (like they use on battlebots)
The site has downloadable parts lists, schematics, even the Gerber files to
get boards made.
So what did I win Jon? ;-) (just kidding)
-William
Original Message
From: Jon Williams <jwilliams@p...>
To: basicstamps@yahoogroups.com <basicstamps@yahoogroups.com>
Date: Sunday, June 29, 2003 10:58 AM
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>It probably won't be any time soon (from us) because we focus on small
>robots -- 20 amps would make any of them turn into a small, smoldering
>pile of carbon.
>
>But I'll bet there are more than a few Stamp users that do what you're
>looking for. For the person who creates the first really good app that
>meets Bill's need, I could probably offer up a nice little prize. Any
>takers?
>
>-- Jon Williams
>-- Applications Engineer
>-- Parallax
>
>
>
Original Message
>From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=dDaQOy6bKf5MtX1YDz4jbEpnX_cz1CrXTWwnFSsI0PgrxNMqyBZioCf_JcvEbKPSyDoPGCi1tHlRj-OfRnJikw]bkatakis@a...[/url
>Sent: Saturday, June 28, 2003 12:18 PM
>To: basicstamps@yahoogroups.com
>Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>
>
>John,
>
>How about an example of a really big mosfet h-bridge, something that
>would do say 20 amps dc at 8-24 volts, and an example software for real
>time control with reversing and of course the variable speed.
>
>
>
>Bill
>
>
Original Message
>From: Jon Williams [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Yxv9hLvXMhGd6U-_jZWTUA-xYj6QtrDRizsaP-Hs9r4v7GCmuUeS6HojR6Uld-ND_11oRLHJlbY5xBwzOWzy]jwilliams@p...[/url
>Sent: Friday, June 27, 2003 10:45 AM
>To: basicstamps@yahoogroups.com
>Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
>
>
>The demo code uses 48 + MotorNum so that you can change the MotorNum
>constant and not have to change multiple SEROUT lines. The ASCII
>character for "0" is 48, so with MotorNum values of 1 to 4, that
>expression will evaluate to "1" to "4". Think of
>
> 48 + MotorNum
>
>...as a number-to-ASCII conversion.
>
>Please keep in mind that the purpose of documentation is to explain the
>features of a product, but not necessarily to show every possible
>iteration of those features. As with most other products we've
>developed, there will be specific application notes that follow; most
>likely an H-Bridge application will be among them. I was exploring
>possible configurations for control just yesterday.
>
>-- Jon Williams
>-- Parallax
>
>
>
>
>
Original Message
>From: John Courtney [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=7ysE5SpNfrpbnivcpUpIAAEmet4iCts2tZ5wM3BKn430975efQr8QATBBvb1ZzuWaoQd5-VVmbzcSQJv27KTGJ7p]johneck790@s...[/url
>Sent: Friday, June 27, 2003 8:58 AM
>To: basicstamps@yahoogroups.com
>Subject: [noparse][[/noparse]basicstamps] pwmpal
>
>
>Thanks John
>
>great chip i just ordered it, but i got a couple question about it
>
>in the pdf documentation on simple motor control, in the serout
>statement you use
>
>48 + motor control, so why 48
>
>and whoud you have a more complete example of an hbridge control program
>
>thanks great chip and good timing
>
>
>
>John
>
>
>
>maker of JORO2
>
>[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/
>
>
>
>
>
>
>This message has been scanned by WebShield. Please report SPAM to
>abuse@p....
>
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
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>and Body of the message will be ignored.
>
>
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>http://docs.yahoo.com/info/terms/
>
>
>
>
>
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> basicstamps-unsubscribe@yahoogroups.com
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Once you get it working you can claim your prize.
-- Jon Williams
-- Parallax
Original Message
From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=z1Twbqj811wEmYYbkt7fYn-1y-0yFy5K38p5hXTGGRh13o8Tw84aQcigppklhSpBCjSX3KcR9ZfFks6cuQzieA]bkatakis@a...[/url
Sent: Friday, July 04, 2003 8:37 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
Here is the best one I could find so far, there are several variations
of the controller for different d.c. voltages. It has a pwm input lug,
2 for direction, one for on/off, so 3 stamp lines per motor if you are
using another chip for pwm like the pwmpal.
http://divelec.tripod.com/mc/mc7_specs.html
Bill
Original Message
From: Jon Williams [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=8dwsKMgN0DCUkqorNxmlczvOlxkRTJIVtbUWg63A2VZjp6hi3Or9VkTyuYE3ZyIvpgYjHZhY11_DDEal0A]jwilliams@p...[/url
Sent: Sunday, June 29, 2003 11:58 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
It probably won't be any time soon (from us) because we focus on small
robots -- 20 amps would make any of them turn into a small, smoldering
pile of carbon.
But I'll bet there are more than a few Stamp users that do what you're
looking for. For the person who creates the first really good app that
meets Bill's need, I could probably offer up a nice little prize. Any
takers?
-- Jon Williams
-- Applications Engineer
-- Parallax
Original Message
From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=z1Twbqj811wEmYYbkt7fYn-1y-0yFy5K38p5hXTGGRh13o8Tw84aQcigppklhSpBCjSX3KcR9ZfFks6cuQzieA]bkatakis@a...[/url
Sent: Saturday, June 28, 2003 12:18 PM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
John,
How about an example of a really big mosfet h-bridge, something that
would do say 20 amps dc at 8-24 volts, and an example software for real
time control with reversing and of course the variable speed.
Bill
Original Message
From: Jon Williams [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=8dwsKMgN0DCUkqorNxmlczvOlxkRTJIVtbUWg63A2VZjp6hi3Or9VkTyuYE3ZyIvpgYjHZhY11_DDEal0A]jwilliams@p...[/url
Sent: Friday, June 27, 2003 10:45 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] pwmpal
The demo code uses 48 + MotorNum so that you can change the MotorNum
constant and not have to change multiple SEROUT lines. The ASCII
character for "0" is 48, so with MotorNum values of 1 to 4, that
expression will evaluate to "1" to "4". Think of
48 + MotorNum
...as a number-to-ASCII conversion.
Please keep in mind that the purpose of documentation is to explain the
features of a product, but not necessarily to show every possible
iteration of those features. As with most other products we've
developed, there will be specific application notes that follow; most
likely an H-Bridge application will be among them. I was exploring
possible configurations for control just yesterday.
-- Jon Williams
-- Parallax
Original Message
From: John Courtney [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=QPxpvpV0N-2z1pyoIO0y3IVUZIQyP5YX0gCtfoaMPZCcOjM4fatnChWNzvhOngyy8XEks0NVrXNrcNwtnoFDYIE]johneck790@s...[/url
Sent: Friday, June 27, 2003 8:58 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] pwmpal
Thanks John
great chip i just ordered it, but i got a couple question about it
in the pdf documentation on simple motor control, in the serout
statement you use
48 + motor control, so why 48
and whoud you have a more complete example of an hbridge control program
thanks great chip and good timing
John
maker of JORO2
[noparse][[/noparse]Non-text portions of this message have been removed]
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