1 or 2 chip stepper controllers...
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Posts: 46,084
I'm trying to find a one or two chip stepper controller that I can use
serout or shiftout commands to talk to. I've seen the 8 pin chip that
FerretTronics sells, but it's too slow (2400bps only).
BTW, the search engine for the stamp list is broken. [noparse]:)[/noparse]
g.
serout or shiftout commands to talk to. I've seen the 8 pin chip that
FerretTronics sells, but it's too slow (2400bps only).
BTW, the search engine for the stamp list is broken. [noparse]:)[/noparse]
g.
Comments
I recommend using a Stamp along with a ULN2003 darlington driver chip, as
described in Note 6: A Serial Stepper Controller, BASIC Stamp Manual 1.2, by
Parallax. It uses only 2 stamp pins, and relies on the 2003 to provide the
4-bit stepping sequence. My addition to this design was to add a relay,
controlled by one of the unused 2003 channels, to switch the motor on just
befor rotation, and off just after rotation. Otherwise, it's always
activated.
Dennis
Original Message
From: Gene Buckle [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=8DCy16OgqPlQGsnZs_APrebVF4p5Hox8O0d6WrbjQkvTgy4qLH_ZhmjMm3NrPVbYU8i4-RZ6mwh05nGL]geneb@d...[/url
Sent: Thursday, January 11, 2001 9:29 PM
To: basicstamps@egroups.com
Subject: [noparse][[/noparse]basicstamps] 1 or 2 chip stepper controllers...
I'm trying to find a one or two chip stepper controller that I can use
serout or shiftout commands to talk to. I've seen the 8 pin chip that
FerretTronics sells, but it's too slow (2400bps only).
BTW, the search engine for the stamp list is broken. [noparse]:)[/noparse]
g.
to a stepper motor. [noparse]:)[/noparse] I suppose I could use a BS1 for that though...
Does that controller circuit allow for quarter stepping?
Thanks.
g.
On Fri, 12 Jan 2001, Dennis P. O'Leary wrote:
> Gene,
> I recommend using a Stamp along with a ULN2003 darlington driver chip, as
> described in Note 6: A Serial Stepper Controller, BASIC Stamp Manual 1.2, by
> Parallax. It uses only 2 stamp pins, and relies on the 2003 to provide the
> 4-bit stepping sequence. My addition to this design was to add a relay,
> controlled by one of the unused 2003 channels, to switch the motor on just
> befor rotation, and off just after rotation. Otherwise, it's always
> activated.
> Dennis
>
>
Original Message
> From: Gene Buckle [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=SC9tEMthjSAlZNdVrPL7hFMtZllYTORkyzANXNpvIHUP9M4VJQSGVGSxpypmqNXizwxmm8x_OawzvXXFVx8]geneb@d...[/url
> Sent: Thursday, January 11, 2001 9:29 PM
> To: basicstamps@egroups.com
> Subject: [noparse][[/noparse]basicstamps] 1 or 2 chip stepper controllers...
>
>
> I'm trying to find a one or two chip stepper controller that I can use
> serout or shiftout commands to talk to. I've seen the 8 pin chip that
> FerretTronics sells, but it's too slow (2400bps only).
>
> BTW, the search engine for the stamp list is broken. [noparse]:)[/noparse]
>
> g.
>
>
>
>
>
>
>
>
>
I've had good luck with the Allegro UCN5804B.
http://www.allegromicro.com/sf/5804/index.htm
I drive size 11 and 17 motors directly in half step and full step mode.There is an output enable if you want to dedicate an extra pin to powerthe motor down when not in use. I have gotten these from Newark (theirpart # 09F1557) for $3.74 each, butthe minimum order of $25 may be a problem for you.
They are in some of the kits sold by H&R and they sell a $10.95 ICthat may be the Allegro part.
http://www.herbach.com/images/stepmkit.pdf.
Hope that helps.
Mike
At 09:29 PM 1/11/2001 -0800, you wrote:
serout or shiftout commands to talk to.· I've seen the 8 pin chipthat
FerretTronics sells, but it's too slow (2400bps only).
BTW, the search engine for the stamp list is broken. [noparse]:)[/noparse]
g.
this?
g.
On Fri, 12 Jan 2001, MIKE WALSH wrote:
> Gene,
> I've had good luck with the Allegro UCN5804B.
> http://www.allegromicro.com/sf/5804/index.htm
> I drive size 11 and 17 motors directly in half step and full step mode.
> There is an output enable if you want to dedicate an extra pin to power the
> motor down when not in use. I have gotten these from Newark (their part #
> 09F1557) for $3.74 each, but the minimum order of $25 may be a problem for
you.
> They are in some of the kits sold by H&R and they sell a $10.95 IC that may
> be the Allegro part.
> http://www.herbach.com/images/stepmkit.pdf.
> Hope that helps.
> Mike
>
>
>
> At 09:29 PM 1/11/2001 -0800, you wrote:
> >I'm trying to find a one or two chip stepper controller that I can use
> >serout or shiftout commands to talk to. I've seen the 8 pin chip that
> >FerretTronics sells, but it's too slow (2400bps only).
> >
> >BTW, the search engine for the stamp list is broken. [noparse]:)[/noparse]
> >
> >g.
>
None that I've found. I have the same speed issues (can't live with 2400
baud control) in most of my applications.
Good luck!
Mike
At 02:27 PM 1/12/2001 -0800, you wrote:
>Thanks Mike, I'll give this a peek. Are there any SPI chips that can do
>this?
>
>g.
for bipolar motors). These are excellent controllers as they free up the
stamp to do other tasks after you issue the control commands.
I use them in a production instrument which we still manufacture although we
do not use the BS2 ( we use straight PICS instead).
You can find the ELab inc. site at http://www.elabinc.com/
Cheers
Fritz
Original Message
From: "MIKE WALSH" <walsh@c...>
To: <basicstamps@egroups.com>
Sent: Friday, January 12, 2001 6:04 PM
Subject: Re: [noparse][[/noparse]basicstamps] 1 or 2 chip stepper controllers...
> Gene,
> None that I've found. I have the same speed issues (can't live with 2400
> baud control) in most of my applications.
> Good luck!
> Mike
>
> At 02:27 PM 1/12/2001 -0800, you wrote:
> >Thanks Mike, I'll give this a peek. Are there any SPI chips that can do
> >this?
> >
> >g.
>
>
>
>
>
g.
On Fri, 12 Jan 2001, MIKE WALSH wrote:
> Gene,
> None that I've found. I have the same speed issues (can't live with 2400
> baud control) in most of my applications.
> Good luck!
> Mike
>
> At 02:27 PM 1/12/2001 -0800, you wrote:
> >Thanks Mike, I'll give this a peek. Are there any SPI chips that can do
> >this?
> >
> >g.
>
>
>
>
>
Original Message
From: Gene Buckle [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=2RU_Gl3ubgziobaOKv2kBZngN2labC4uwdIf7fhV5bwaRc_EKW9LpV22xHEJIfsLYf8A3LjZ23aUZw]geneb@d...[/url
Sent: Friday, January 12, 2001 12:08 PM
To: basicstamps@egroups.com
Subject: RE: [noparse][[/noparse]basicstamps] 1 or 2 chip stepper controllers...
Dennis, the problem there is I'd have a Stamp talking to a Stamp, talking
to a stepper motor. [noparse]:)[/noparse] I suppose I could use a BS1 for that though...
Does that controller circuit allow for quarter stepping?
Gene,
No it doesn't -- not even half-stepping unless you use 4 stamp pins and
modify the driver circuit connections. I agree with Fritz's suggestion to go
with Elabs.
Dennis
Original Message
>From: Gene Buckle [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=xqxsMBC3H8spw-M4259-kQncmRovkMsjA1pJu_1Td41Ik2oo5mnzsJxYroCbr_KWhNns8lNyR2bfQ_yoZ-I]geneb@d...[/url
>Sent: Friday, January 12, 2001 12:08 PM
>To: basicstamps@egroups.com
>Subject: RE: [noparse][[/noparse]basicstamps] 1 or 2 chip stepper controllers...
>
>
>Dennis, the problem there is I'd have a Stamp talking to a Stamp, talking
>to a stepper motor. [noparse]:)[/noparse]
Gene -- This can actually be useful. I have a PIC(#1) talking to a PIC(#2)
controlling 2 steppers and a laser diode. PIC#2 sends character codes back
to PIC#1 detailing stepper motion and laser on/off states. PIC#1 controls
A/D conversion. It use the info from PIC#2 to sit bit codes in unused bits
in each A/D hi-byte, before uploading a 2-byte word to a VB program on a PC.
Dennis
doleary@h... writes:
<< doleary@h... (Dennis O'Leary) >>
UNSUBSCRIBE......NOW
don't you go back to egroups.com and unsubscribe where you first subscribed?
Original Message
From: shirmel@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=VVCxbqScdFEa973QQ8NaZkp8x5lrTfkaJIzuADjxTeORVxm6LndH003gSdQ4pFZ_AgP5pOFi7j6c]shirmel@a...[/url
Sent: Tuesday, January 16, 2001 3:28 PM
To: basicstamps@egroups.com; Dennis O'Leary
Subject: Re: [noparse][[/noparse]basicstamps] 1 or 2 chip stepper controllers...
In a message dated 1/16/01 2:41:48 PM Eastern Standard Time,
doleary@h... writes:
<< doleary@h... (Dennis O'Leary) >>
UNSUBSCRIBE......NOW
"didn't like my answer." Sheesh.
Original Message
From: Stratton Design Studios [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=G12Gwpxal-iKkN4Z5bJBX4pr7XxcPK9eIr6wMCQ_R4XtP8saqYjAFlY0Tsg6GLZADJbOcBzgDQMbT8R1BXnn6YV0hhmuVI1u]cory@s...[/url
Sent: Tuesday, January 16, 2001 5:12 PM
To: basicstamps@egroups.com
Subject: RE: [noparse][[/noparse]basicstamps] 1 or 2 chip stepper controllers...
Hey buddy, you'll be blue in the face trying to unsubscribe this way. Why
don't you go back to egroups.com and unsubscribe where you first subscribed?
Original Message
From: shirmel@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=wpa-6tEBF3k00PjxpfiGdH7JkEhZkC52rOUaLlYUp3F_Hwm0I02f2ngAXbUDLqq2J7SqMirP]shirmel@a...[/url
Sent: Tuesday, January 16, 2001 3:28 PM
To: basicstamps@egroups.com; Dennis O'Leary
Subject: Re: [noparse][[/noparse]basicstamps] 1 or 2 chip stepper controllers...
In a message dated 1/16/01 2:41:48 PM Eastern Standard Time,
doleary@h... writes:
<< doleary@h... (Dennis O'Leary) >>
UNSUBSCRIBE......NOW
hehe
In a message dated 1/16/01 2:41:48 PM Eastern Standard Time,
doleary@h... writes:
<< doleary@h... (Dennis O'Leary) >>
UNSUBSCRIBE......NOW
Just wanted to clarify that I am NOT the person trying to unsubscribe. The
perpetrator is: shirmel@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=h2RwCzuYpf_cxPu2ATpw7ssnahz75KGHYPsDFUfeK4n8qK4hkOwnB9njNRuWhJqutrOEsR_DqJU]shirmel@a...[/url
Dennis
Original Message
From: Cy Brown [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=vaNzNPaEXQqY0igi1-6bGOiOrzHe67o34fxBf8SW_HHYpSTgfikTk7zWhVd6OvYw8JCQ-bx7bILOwPUhcJw]bushman@t...[/url
Sent: Tuesday, January 16, 2001 9:04 PM
To: basicstamps@egroups.com
Subject: Re: [noparse][[/noparse]basicstamps] 1 or 2 chip stepper controllers...
Thats priceless.....
hehe
In a message dated 1/16/01 2:41:48 PM Eastern Standard Time,
doleary@h... writes:
<< doleary@h... (Dennis O'Leary) >>
UNSUBSCRIBE......NOW