BSIISX - Connecting Servo''s Correctly
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I'm new to Stamps and just trying to learn how to connect up two hobby
servos to a BSIISX and program them with a simple code that I could
understand even though I have never used PBasic language before.
Does anyone have a short code that I could use to do this?
If the red wire goes to +5 volts.
The Black goes to gnd.
And the White goes to your Stamp pin, can somebody tell me from my diagram
below, which is the Stamp pin.
TX PWR
RX GND
ATN RES
GND +5v
P0 P15
P1 P14
P2 P13
P3 P12
P4 P11
P5 P10
P6 P9
P7 P8
Original Message
From: Jason 1 <plugger2@s...>
To: <basicstamps@egroups.com>
Sent: Friday, October 20, 2000 5:38 AM
Subject: Re: [noparse][[/noparse]basicstamps] BSIISX - Connecting Servo's Correctly
> Original message from: "Ray McArthur" <rjmca@u...>
> >
> >Nick:
> >The red wire goes to +5 volts.
> >Black goes to gnd.
> >White goes to your Stamp pin.
> >
> >I advise a 1K resistor in series to the stamp pin, it doesn't effect
> the
> >servo and provides protection to the Stamp.
> >
> >Here is BS1 code that I have used to cycle servos back and forth. I
> am not
> >familiar with the SX, so you will have to convert the code. Pay
> special
> >attention to the PULSOUT...the SX probably uses different units of
> time.
> >This program generates 1 to 2 millisecs with a BS1, (Pulsout
> 100=10us*100=1
> >millisec). Also, check on the Pause statement, I don't know if it's
> the
> >same for the SX. For the BS1, Pause 15 is a 15 millisec delay. Also
> make
> >sure your power supply can support the current drain of a servo.
> Many
> >problems show up on this list because the power supply bogs down when
> the
> >servo moves, resulting in a Stamp reset.
> >
> >Hope this helps,
> >Ray McArthur
> >
> >'PROGRAM "SRVOTST1.BAS" 10/4/00
> >'TO TEST RC SERVOS
> >DIRS=%11111111
> >LOW 0
> >AGAIN:
> >FOR B2=100 TO 200 STEP 2
> > PULSOUT 0,B2
> > PAUSE 15
> >NEXT B2
> >FOR B2=200 TO 100 STEP -2
> > PULSOUT 0,B2
> > PAUSE 15
> > NEXT B2
> >'DEBUG "AGAIN"
> >PAUSE 1000
> >GOTO AGAIN
>
> Just a note of caution, I was told that driving a servo one way and
> then another at high speed will wear out the servo quite fast. I drive
> my servo's using an acceleration variable instead of just a simple
> position statement. By controlling acceleration you can softly
> accelerate and decelerate the servo from start to stop thus prolonging
> the servo life. Although it makes the coding more compicated.
>
> The acceleration rate thus looks like this: 0,1,2,3,4,5,6,7,8,9,
> instead of 0 to top speed.
>
> Here is the program for 'organic' servo motion, it is by no means
> elegant at this stage:
>
>
>
> 'THIS CODE MOVES A SERVO LEFT TO RIGHT
> 'WITH AN ORGANIC MOTION
>
> a var word
> mo var word ' servo position
> x var byte ' accelleration rate
>
> servo:
>
> x=0
> mo= 600
> for a = 1 to 10 '******HOLD INITIAL POSITION FOR A WHILE
> pulsout 0, mo
> pause 15
> next
>
>
> '************begin
>
> 'rev up
> for a = 1 to 20
> pulsout 0, mo
> pause 15
> mo=mo+x '
> x=x+1 '0,1,2,3,4,5,6,7,8,9
> next
>
>
> 'slow down
> for a = 1 to 20
> pulsout 0, mo
> pause 15
> mo=mo+x '
> x=x-1 '9,8,7,6,5,4,3,2,1,0
> next
>
>
>
>
> for a = 1 to 10 '******HOLD FINAL POSITION FOR A WHILE
> pulsout 0, mo
> pause 15
> next
>
>
>
> 'rev up in opposite direction
>
> for a = 1 to 20
> pulsout 0, mo
> pause 15
> mo=mo-x ' negative value of below
> x=x+1 '0,1,2,3,4,5,6,7,8,9
> next
>
>
> 'slow down in opposite direction
>
> for a = 1 to 20
> pulsout 0, mo
> pause 15
> mo=mo-x ' negative value of below
> x=x-1 '9,8,7,6,5,4,3,2,1,0
> next
>
>
> '*************
>
> goto servo 'repeat
>
>
>
>
>
> Jason
>
>
>
>
>
> __________________________________________________________________
> Get your free Australian email account at http://www.start.com.au
>
>
>
>
servos to a BSIISX and program them with a simple code that I could
understand even though I have never used PBasic language before.
Does anyone have a short code that I could use to do this?
If the red wire goes to +5 volts.
The Black goes to gnd.
And the White goes to your Stamp pin, can somebody tell me from my diagram
below, which is the Stamp pin.
TX PWR
RX GND
ATN RES
GND +5v
P0 P15
P1 P14
P2 P13
P3 P12
P4 P11
P5 P10
P6 P9
P7 P8
Original Message
From: Jason 1 <plugger2@s...>
To: <basicstamps@egroups.com>
Sent: Friday, October 20, 2000 5:38 AM
Subject: Re: [noparse][[/noparse]basicstamps] BSIISX - Connecting Servo's Correctly
> Original message from: "Ray McArthur" <rjmca@u...>
> >
> >Nick:
> >The red wire goes to +5 volts.
> >Black goes to gnd.
> >White goes to your Stamp pin.
> >
> >I advise a 1K resistor in series to the stamp pin, it doesn't effect
> the
> >servo and provides protection to the Stamp.
> >
> >Here is BS1 code that I have used to cycle servos back and forth. I
> am not
> >familiar with the SX, so you will have to convert the code. Pay
> special
> >attention to the PULSOUT...the SX probably uses different units of
> time.
> >This program generates 1 to 2 millisecs with a BS1, (Pulsout
> 100=10us*100=1
> >millisec). Also, check on the Pause statement, I don't know if it's
> the
> >same for the SX. For the BS1, Pause 15 is a 15 millisec delay. Also
> make
> >sure your power supply can support the current drain of a servo.
> Many
> >problems show up on this list because the power supply bogs down when
> the
> >servo moves, resulting in a Stamp reset.
> >
> >Hope this helps,
> >Ray McArthur
> >
> >'PROGRAM "SRVOTST1.BAS" 10/4/00
> >'TO TEST RC SERVOS
> >DIRS=%11111111
> >LOW 0
> >AGAIN:
> >FOR B2=100 TO 200 STEP 2
> > PULSOUT 0,B2
> > PAUSE 15
> >NEXT B2
> >FOR B2=200 TO 100 STEP -2
> > PULSOUT 0,B2
> > PAUSE 15
> > NEXT B2
> >'DEBUG "AGAIN"
> >PAUSE 1000
> >GOTO AGAIN
>
> Just a note of caution, I was told that driving a servo one way and
> then another at high speed will wear out the servo quite fast. I drive
> my servo's using an acceleration variable instead of just a simple
> position statement. By controlling acceleration you can softly
> accelerate and decelerate the servo from start to stop thus prolonging
> the servo life. Although it makes the coding more compicated.
>
> The acceleration rate thus looks like this: 0,1,2,3,4,5,6,7,8,9,
> instead of 0 to top speed.
>
> Here is the program for 'organic' servo motion, it is by no means
> elegant at this stage:
>
>
>
> 'THIS CODE MOVES A SERVO LEFT TO RIGHT
> 'WITH AN ORGANIC MOTION
>
> a var word
> mo var word ' servo position
> x var byte ' accelleration rate
>
> servo:
>
> x=0
> mo= 600
> for a = 1 to 10 '******HOLD INITIAL POSITION FOR A WHILE
> pulsout 0, mo
> pause 15
> next
>
>
> '************begin
>
> 'rev up
> for a = 1 to 20
> pulsout 0, mo
> pause 15
> mo=mo+x '
> x=x+1 '0,1,2,3,4,5,6,7,8,9
> next
>
>
> 'slow down
> for a = 1 to 20
> pulsout 0, mo
> pause 15
> mo=mo+x '
> x=x-1 '9,8,7,6,5,4,3,2,1,0
> next
>
>
>
>
> for a = 1 to 10 '******HOLD FINAL POSITION FOR A WHILE
> pulsout 0, mo
> pause 15
> next
>
>
>
> 'rev up in opposite direction
>
> for a = 1 to 20
> pulsout 0, mo
> pause 15
> mo=mo-x ' negative value of below
> x=x+1 '0,1,2,3,4,5,6,7,8,9
> next
>
>
> 'slow down in opposite direction
>
> for a = 1 to 20
> pulsout 0, mo
> pause 15
> mo=mo-x ' negative value of below
> x=x-1 '9,8,7,6,5,4,3,2,1,0
> next
>
>
> '*************
>
> goto servo 'repeat
>
>
>
>
>
> Jason
>
>
>
>
>
> __________________________________________________________________
> Get your free Australian email account at http://www.start.com.au
>
>
>
>