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Control of small DC motor — Parallax Forums

Control of small DC motor

ArchiverArchiver Posts: 46,084
edited 2002-09-26 21:33 in General Discussion
Hello-

I'm working on a project for a retail store. They have a need for a ceiling
mounted motor that rotates a sign or graphic hanging off of it. The tricky part
is that they want the ability to vary the speed and direction of the rotation of
this motor. Changing the speed and direction manually by way of switch and
potentiometer mounted on the motor is completely fine. The motor I'm thinking
of using is a 1.5-3 VDC gearmotor. I know that I can easily change the direction
of the motor by just reversing the polarity of the wires going to the motor
with a switch. The hard part for me is coming up with the best way to vary the
speed of the motor.
I thought about using a Motor Mind B motor controller from Solutions Cubed
connected to a BS1 or BS2 for control. Is this the best way or is there a
simpler solution?
Does anyone out there have any experience with this, advice, or suggestions?

Thank you in advance,

Deneb

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-09-24 17:15
    At 08:55 AM 9/24/2002 -0700, you wrote:
    >Hello-
    >
    >I'm working on a project for a retail store. They have a need for a
    >ceiling mounted motor that rotates a sign or graphic hanging off of it.
    >The tricky part is that they want the ability to vary the speed and
    >direction of the rotation of this motor. Changing the speed and direction
    >manually by way of switch and potentiometer mounted on the motor is
    >completely fine. The motor I'm thinking of using is a 1.5-3 VDC gearmotor.
    >I know that I can easily change the direction of the motor by just
    >reversing the polarity of the wires going to the motor with a switch. The
    >hard part for me is coming up with the best way to vary the speed of the motor.
    >I thought about using a Motor Mind B motor controller from Solutions
    >Cubed connected to a BS1 or BS2 for control. Is this the best way or is
    >there a simpler solution?
    >Does anyone out there have any experience with this, advice, or suggestions?
    >
    >Thank you in advance,
    >
    >Deneb

    Deneb -

    Just a word of caution. Many gearmotors are NOT REVERSIBLE. Make sure that
    the motor you use clearly states that it IS reversible. Otherwise, no
    amount of circuity is going to overcome jammed gears.

    If you find that the Motor Mind B doesn't have the current capacity to meet
    your requirements I believe there is now a Motor Mind C with higher capacity.
    Check the Solutions Cubed web site for more information:
    http://www.solutions-cubed.com/

    Regards,

    Bruce Bates

    >To UNSUBSCRIBE, just send mail to:
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  • ArchiverArchiver Posts: 46,084
    edited 2002-09-24 18:27
    Bruce-

    Thanks for the good advice. I will make sure that the motor I use is designed to
    be reversed.
    As for the current of the motor, I think I'm fine with the motor Mond B. Do you
    have any experinece interfacing it with the BS1 or BS2?

    Thanks, Deneb

    >
    > From: Bruce Bates
    > Reply To: basicstamps@yahoogroups.com
    > Sent: Tuesday, September 24, 2002 9:15 AM
    > To: basicstamps@yahoogroups.com
    > Subject: Re: [noparse][[/noparse]basicstamps] Control of small DC motor
    >
    > At 08:55 AM 9/24/2002 -0700, you wrote:
    > >Hello-
    > >
    > >I'm working on a project for a retail store. They have a need for a
    > >ceiling mounted motor that rotates a sign or graphic hanging off of it.
    > >The tricky part is that they want the ability to vary the speed and
    > >direction of the rotation of this motor. Changing the speed and direction
    > >manually by way of switch and potentiometer mounted on the motor is
    > >completely fine. The motor I'm thinking of using is a 1.5-3 VDC gearmotor.
    > >I know that I can easily change the direction of the motor by just
    > >reversing the polarity of the wires going to the motor with a switch. The
    > >hard part for me is coming up with the best way to vary the speed of the
    motor.
    > >I thought about using a Motor Mind B motor controller from Solutions
    > >Cubed connected to a BS1 or BS2 for control. Is this the best way or is
    > >there a simpler solution?
    > >Does anyone out there have any experience with this, advice, or suggestions?
    > >
    > >Thank you in advance,
    > >
    > >Deneb
    >
    > Deneb -
    >
    > Just a word of caution. Many gearmotors are NOT REVERSIBLE. Make sure that
    > the motor you use clearly states that it IS reversible. Otherwise, no
    > amount of circuity is going to overcome jammed gears.
    >
    > If you find that the Motor Mind B doesn't have the current capacity to meet
    > your requirements I believe there is now a Motor Mind C with higher capacity.
    > Check the Solutions Cubed web site for more information:
    > http://www.solutions-cubed.com/
    >
    > Regards,
    >
    > Bruce Bates
    >
    > >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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    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2002-09-24 18:51
    At 10:27 AM 9/24/2002 -0700, you wrote:
    >Bruce-
    >
    >Thanks for the good advice. I will make sure that the motor I use is
    >designed to be reversed.
    >As for the current of the motor, I think I'm fine with the motor Mond B.
    >Do you have any experinece interfacing it with the BS1 or BS2?
    >
    >Thanks, Deneb
    Deneb -

    There are examples and sample code on the Solutions Cubed web site I believe.

    Bruce

    > >
    > > From: Bruce Bates
    > > Reply To: basicstamps@yahoogroups.com
    > > Sent: Tuesday, September 24, 2002 9:15 AM
    > > To: basicstamps@yahoogroups.com
    > > Subject: Re: [noparse][[/noparse]basicstamps] Control of small DC motor
    > >
    > > At 08:55 AM 9/24/2002 -0700, you wrote:
    > > >Hello-
    > > >
    > > >I'm working on a project for a retail store. They have a need for a
    > > >ceiling mounted motor that rotates a sign or graphic hanging off of it.
    > > >The tricky part is that they want the ability to vary the speed and
    > > >direction of the rotation of this motor. Changing the speed and direction
    > > >manually by way of switch and potentiometer mounted on the motor is
    > > >completely fine. The motor I'm thinking of using is a 1.5-3 VDC
    > gearmotor.
    > > >I know that I can easily change the direction of the motor by just
    > > >reversing the polarity of the wires going to the motor with a switch.
    > The
    > > >hard part for me is coming up with the best way to vary the speed of
    > the motor.
    > > >I thought about using a Motor Mind B motor controller from Solutions
    > > >Cubed connected to a BS1 or BS2 for control. Is this the best way or is
    > > >there a simpler solution?
    > > >Does anyone out there have any experience with this, advice, or
    > suggestions?
    > > >
    > > >Thank you in advance,
    > > >
    > > >Deneb
    > >
    > > Deneb -
    > >
    > > Just a word of caution. Many gearmotors are NOT REVERSIBLE. Make sure that
    > > the motor you use clearly states that it IS reversible. Otherwise, no
    > > amount of circuity is going to overcome jammed gears.
    > >
    > > If you find that the Motor Mind B doesn't have the current capacity to meet
    > > your requirements I believe there is now a Motor Mind C with higher
    > capacity.
    > > Check the Solutions Cubed web site for more information:
    > > http://www.solutions-cubed.com/
    > >
    > > Regards,
    > >
    > > Bruce Bates
    > >
    > > >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:
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  • ArchiverArchiver Posts: 46,084
    edited 2002-09-25 22:25
    interface is a snap, i havent played with it for a
    while so i would have to go back and look at the code
    for specifics, but the jist of it is all you have to
    do is serially throw 2 byte hex codes at it. The MMB
    onboard controller then translates your instructions
    to the motor output(speed, direction, tachometer,
    brake, etc.). couldnt be easier. their site has
    sample code for basically all of the motor functions
    for BS1 & BS2. link found here:
    http://www.solutions-cubed.com/Products/MotorMindB/motormindB_download.htm

    hope that helps you out.
    ross


    --- "Irvin, Deneb" <irvin@d...>
    wrote:
    > Bruce-
    >
    > Thanks for the good advice. I will make sure that
    > the motor I use is designed to be reversed.
    > As for the current of the motor, I think I'm fine
    > with the motor Mond B. Do you have any experinece
    > interfacing it with the BS1 or BS2?
    >
    > Thanks, Deneb
    >
    > >
    > > From: Bruce Bates
    > > Reply To: basicstamps@yahoogroups.com
    > > Sent: Tuesday, September 24, 2002 9:15 AM
    > > To: basicstamps@yahoogroups.com
    > > Subject: Re: [noparse][[/noparse]basicstamps] Control of small DC
    > motor
    > >
    > > At 08:55 AM 9/24/2002 -0700, you wrote:
    > > >Hello-
    > > >
    > > >I'm working on a project for a retail store. They
    > have a need for a
    > > >ceiling mounted motor that rotates a sign or
    > graphic hanging off of it.
    > > >The tricky part is that they want the ability to
    > vary the speed and
    > > >direction of the rotation of this motor. Changing
    > the speed and direction
    > > >manually by way of switch and potentiometer
    > mounted on the motor is
    > > >completely fine. The motor I'm thinking of using
    > is a 1.5-3 VDC gearmotor.
    > > >I know that I can easily change the direction of
    > the motor by just
    > > >reversing the polarity of the wires going to the
    > motor with a switch. The
    > > >hard part for me is coming up with the best way
    > to vary the speed of the motor.
    > > >I thought about using a Motor Mind B motor
    > controller from Solutions
    > > >Cubed connected to a BS1 or BS2 for control. Is
    > this the best way or is
    > > >there a simpler solution?
    > > >Does anyone out there have any experience with
    > this, advice, or suggestions?
    > > >
    > > >Thank you in advance,
    > > >
    > > >Deneb
    > >
    > > Deneb -
    > >
    > > Just a word of caution. Many gearmotors are NOT
    > REVERSIBLE. Make sure that
    > > the motor you use clearly states that it IS
    > reversible. Otherwise, no
    > > amount of circuity is going to overcome jammed
    > gears.
    > >
    > > If you find that the Motor Mind B doesn't have the
    > current capacity to meet
    > > your requirements I believe there is now a Motor
    > Mind C with higher capacity.
    > > Check the Solutions Cubed web site for more
    > information:
    > > http://www.solutions-cubed.com/
    > >
    > > Regards,
    > >
    > > Bruce Bates
    > >
    > > >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.
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    >
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    >
    >


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  • ArchiverArchiver Posts: 46,084
    edited 2002-09-26 13:39
    I'm not sure I fully understand what you want. But a MOSFET connected
    between the stamp and the motor and sent a variable PWM signal could be used
    to control the motor speed.


    >From: "Irvin, Deneb" <irvin@d...>
    >Reply-To: basicstamps@yahoogroups.com
    >To: "Basicstamp group" <basicstamps@yahoogroups.com>
    >Subject: [noparse][[/noparse]basicstamps] Control of small DC motor
    >Date: Tue, 24 Sep 2002 08:55:30 -0700
    >
    >Hello-
    >
    >I'm working on a project for a retail store. They have a need for a ceiling
    >mounted motor that rotates a sign or graphic hanging off of it. The tricky
    >part is that they want the ability to vary the speed and direction of the
    >rotation of this motor. Changing the speed and direction manually by way of
    >switch and potentiometer mounted on the motor is completely fine. The
    >motor I'm thinking of using is a 1.5-3 VDC gearmotor. I know that I can
    >easily change the direction of the motor by just reversing the polarity of
    >the wires going to the motor with a switch. The hard part for me is coming
    >up with the best way to vary the speed of the motor.
    >I thought about using a Motor Mind B motor controller from Solutions Cubed
    >connected to a BS1 or BS2 for control. Is this the best way or is there a
    >simpler solution?
    >Does anyone out there have any experience with this, advice, or
    >suggestions?
    >
    >Thank you in advance,
    >
    >Deneb
    >
    >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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  • ArchiverArchiver Posts: 46,084
    edited 2002-09-26 17:26
    Ross-

    Thanks for the help. I have two questions for you, if you don't mind. First, is
    it necessary for the motor that I want to use to have a tach back to the MMB?
    Secondly, how can I manually (potentiometer or other analog device) tell the
    stamp how fast the motor should be going so that it can then tell the MMB to
    either slow down or speed up the motor?

    PL - I ask this second question of you also. If I run PWM to a mosfet to
    control the speed of the motor, how do I tell the stamp how fast to drive the
    mosfet and motor? Do you have any resources (schematics, code , app notes ) for
    this solution. I have an idea of how it should be wired, but I sure could use
    some help.

    Thanks to both of you for your help on this. I really do appreciate it!

    Regards, Deneb

    >
    > From: Klutch
    > Reply To: basicstamps@yahoogroups.com
    > Sent: Wednesday, September 25, 2002 2:25 PM
    > To: basicstamps@yahoogroups.com
    > Subject: RE: [noparse][[/noparse]basicstamps] Control of small DC motor
    >
    > interface is a snap, i havent played with it for a
    > while so i would have to go back and look at the code
    > for specifics, but the jist of it is all you have to
    > do is serially throw 2 byte hex codes at it. The MMB
    > onboard controller then translates your instructions
    > to the motor output(speed, direction, tachometer,
    > brake, etc.). couldnt be easier. their site has
    > sample code for basically all of the motor functions
    > for BS1 & BS2. link found here:
    > http://www.solutions-cubed.com/Products/MotorMindB/motormindB_download.htm
    >
    > hope that helps you out.
    > ross
    >
    >
    > --- "Irvin, Deneb" <irvin@d...>
    > wrote:
    > > Bruce-
    > >
    > > Thanks for the good advice. I will make sure that
    > > the motor I use is designed to be reversed.
    > > As for the current of the motor, I think I'm fine
    > > with the motor Mond B. Do you have any experinece
    > > interfacing it with the BS1 or BS2?
    > >
    > > Thanks, Deneb
    > >
    > > >
    > > > From: Bruce Bates
    > > > Reply To: basicstamps@yahoogroups.com
    > > > Sent: Tuesday, September 24, 2002 9:15 AM
    > > > To: basicstamps@yahoogroups.com
    > > > Subject: Re: [noparse][[/noparse]basicstamps] Control of small DC
    > > motor
    > > >
    > > > At 08:55 AM 9/24/2002 -0700, you wrote:
    > > > >Hello-
    > > > >
    > > > >I'm working on a project for a retail store. They
    > > have a need for a
    > > > >ceiling mounted motor that rotates a sign or
    > > graphic hanging off of it.
    > > > >The tricky part is that they want the ability to
    > > vary the speed and
    > > > >direction of the rotation of this motor. Changing
    > > the speed and direction
    > > > >manually by way of switch and potentiometer
    > > mounted on the motor is
    > > > >completely fine. The motor I'm thinking of using
    > > is a 1.5-3 VDC gearmotor.
    > > > >I know that I can easily change the direction of
    > > the motor by just
    > > > >reversing the polarity of the wires going to the
    > > motor with a switch. The
    > > > >hard part for me is coming up with the best way
    > > to vary the speed of the motor.
    > > > >I thought about using a Motor Mind B motor
    > > controller from Solutions
    > > > >Cubed connected to a BS1 or BS2 for control. Is
    > > this the best way or is
    > > > >there a simpler solution?
    > > > >Does anyone out there have any experience with
    > > this, advice, or suggestions?
    > > > >
    > > > >Thank you in advance,
    > > > >
    > > > >Deneb
    > > >
    > > > Deneb -
    > > >
    > > > Just a word of caution. Many gearmotors are NOT
    > > REVERSIBLE. Make sure that
    > > > the motor you use clearly states that it IS
    > > reversible. Otherwise, no
    > > > amount of circuity is going to overcome jammed
    > > gears.
    > > >
    > > > If you find that the Motor Mind B doesn't have the
    > > current capacity to meet
    > > > your requirements I believe there is now a Motor
    > > Mind C with higher capacity.
    > > > Check the Solutions Cubed web site for more
    > > information:
    > > > http://www.solutions-cubed.com/
    > > >
    > > > Regards,
    > > >
    > > > Bruce Bates
    > > >
    > > > >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
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    > > >
    > > >
    > > >
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
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    > >
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    >
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  • ArchiverArchiver Posts: 46,084
    edited 2002-09-26 21:33
    no it is not necessary to have a motor with the tach
    back to use the MMB. basically it is just to let you
    know that what the RPM is and to give feedback to the
    BS if the load changed, so that the BS knows to
    command it to speed up. there is a constant speed
    command (SPDCON) which should maintain a desired speed
    automatically without your direct intervention. it is
    all on the datasheet.

    taken from the data sheet:

    "Optional tachometer input reads 0-65,535Hz"

    "Features include the ability to read a motor’s
    tachometer frequency, automated speed control, 254
    discrete steps of speed control, and motor direction
    changes."

    "Also included are gate time selections for the
    tachometer and automated speed control mode, a
    pulse counting function, and the STATUS command.
    The Motor Mind B comes complete with a watchdog
    timer to eliminate the possibility of a system
    firmware
    failure."

    for your second question their are probably many
    different methods that you could use. off the top of
    my head, you could run the pot into an ADC, and then
    into the BS, go to a lookup table, and then feed that
    speed to the MMB. as stated above, the MMB only
    allows 254 discrete speed steps, so regardless of your
    continually variable input, there are still only a
    finte number of motor outputs (way more than enough
    for your task i wager).
    there are all sorts of ADC samples available on the
    web, that coupled with the code provided by solutions
    cubed, and id pretty well say your jobs done!!!!!
    (BTW, i believe that this could easily be done with
    the BS1 if this is the only task it is to perform.)
    hope that helps you out.
    ross


    --- "Irvin, Deneb" <irvin@d...>
    wrote:
    > Ross-
    >
    > Thanks for the help. I have two questions for you,
    > if you don't mind. First, is it necessary for the
    > motor that I want to use to have a tach back to the
    > MMB? Secondly, how can I manually (potentiometer or
    > other analog device) tell the stamp how fast the
    > motor should be going so that it can then tell the
    > MMB to either slow down or speed up the motor?
    >
    > PL - I ask this second question of you also. If I
    > run PWM to a mosfet to control the speed of the
    > motor, how do I tell the stamp how fast to drive the
    > mosfet and motor? Do you have any resources
    > (schematics, code , app notes ) for this solution. I
    > have an idea of how it should be wired, but I sure
    > could use some help.
    >
    > Thanks to both of you for your help on this. I
    > really do appreciate it!
    >
    > Regards, Deneb
    >
    > >
    > > From: Klutch
    > > Reply To: basicstamps@yahoogroups.com
    > > Sent: Wednesday, September 25, 2002 2:25 PM
    > > To: basicstamps@yahoogroups.com
    > > Subject: RE: [noparse][[/noparse]basicstamps] Control of small DC
    > motor
    > >
    > > interface is a snap, i havent played with it for a
    > > while so i would have to go back and look at the
    > code
    > > for specifics, but the jist of it is all you have
    > to
    > > do is serially throw 2 byte hex codes at it. The
    > MMB
    > > onboard controller then translates your
    > instructions
    > > to the motor output(speed, direction, tachometer,
    > > brake, etc.). couldnt be easier. their site has
    > > sample code for basically all of the motor
    > functions
    > > for BS1 & BS2. link found here:
    > >
    >
    http://www.solutions-cubed.com/Products/MotorMindB/motormindB_download.htm
    > >
    > > hope that helps you out.
    > > ross
    > >
    > >
    > > --- "Irvin, Deneb" <irvin@d...>
    > > wrote:
    > > > Bruce-
    > > >
    > > > Thanks for the good advice. I will make sure
    > that
    > > > the motor I use is designed to be reversed.
    > > > As for the current of the motor, I think I'm
    > fine
    > > > with the motor Mond B. Do you have any
    > experinece
    > > > interfacing it with the BS1 or BS2?
    > > >
    > > > Thanks, Deneb
    > > >
    > > > >
    > > > > From: Bruce Bates
    > > > > Reply To: basicstamps@yahoogroups.com
    > > > > Sent: Tuesday, September 24, 2002 9:15 AM
    > > > > To: basicstamps@yahoogroups.com
    > > > > Subject: Re: [noparse][[/noparse]basicstamps] Control of small
    > DC
    > > > motor
    > > > >
    > > > > At 08:55 AM 9/24/2002 -0700, you wrote:
    > > > > >Hello-
    > > > > >
    > > > > >I'm working on a project for a retail store.
    > They
    > > > have a need for a
    > > > > >ceiling mounted motor that rotates a sign or
    > > > graphic hanging off of it.
    > > > > >The tricky part is that they want the ability
    > to
    > > > vary the speed and
    > > > > >direction of the rotation of this motor.
    > Changing
    > > > the speed and direction
    > > > > >manually by way of switch and potentiometer
    > > > mounted on the motor is
    > > > > >completely fine. The motor I'm thinking of
    > using
    > > > is a 1.5-3 VDC gearmotor.
    > > > > >I know that I can easily change the direction
    > of
    > > > the motor by just
    > > > > >reversing the polarity of the wires going to
    > the
    > > > motor with a switch. The
    > > > > >hard part for me is coming up with the best
    > way
    > > > to vary the speed of the motor.
    > > > > >I thought about using a Motor Mind B motor
    > > > controller from Solutions
    > > > > >Cubed connected to a BS1 or BS2 for control.
    > Is
    > > > this the best way or is
    > > > > >there a simpler solution?
    > > > > >Does anyone out there have any experience
    > with
    > > > this, advice, or suggestions?
    > > > > >
    > > > > >Thank you in advance,
    > > > > >
    > > > > >Deneb
    > > > >
    > > > > Deneb -
    > > > >
    > > > > Just a word of caution. Many gearmotors are
    > NOT
    > > > REVERSIBLE. Make sure that
    > > > > the motor you use clearly states that it IS
    > > > reversible. Otherwise, no
    > > > > amount of circuity is going to overcome jammed
    > > > gears.
    > > > >
    > > > > If you find that the Motor Mind B doesn't have
    > the
    > > > current capacity to meet
    > > > > your requirements I believe there is now a
    > Motor
    > > > Mind C with higher capacity.
    > > > > Check the Solutions Cubed web site for more
    > > > information:
    > > > >
    > http://www.solutions-cubed.com/
    > > > >
    > > > > Regards,
    > > > >
    > > > > Bruce Bates
    > > > >
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