Marine Rudder Indicator
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Posts: 46,084
This was part of the Automotive/Marine thread before it somehow got off
on battery sulfating. We were discussing using a BS2 and an LCD to
graphically indicate the rudder position. Anyway, I thought I would try
and revive it.
The rudders don't even move a full 180 degrees and I do have access to
the rudder post and rudder arms so I could fasten something to them. If
I used a pot, does that mean that for example:
-if the rudder was full left, the pot would be at minimum resistance
-if no rudder (straight), the pot would be one half resistance
-if the rudder was full right, the pot would be at maximum
resistance
Then the stamp would compare the resistance(voltage drop) of the pot to
a range of programmed in values for the various rudder positions and
determine how much rudder to display on the LCD?
Sorry to ask such basic questions but I am new at this.
Does anyone have an example of something like this?
"Dave Mucha " wrote:
> IF you are talking a single flap (rudder) that moves, maybe 180
> degrees, why not just a pot ?
>
> There are multiple places to put it. on the actual shaft of the
> rudder, or on the arm that drives it. should be easy to waterproof.
>
> and is MUCH easier to code for than an encoder.
>
> Dave
>
> --- In basicstamps@yahoogroups.com, Rodent <daweasel@s...> wrote:
> > One solution is an absolute position encoder. Its an encoder wheel
> with a
> > pattern on it that indicates exactly how far in its rotation it is -
> - you
> > have multiple devices to read this pattern. You can buy or make
> your own.
> >
> > Do a search on Yahoo! for "absolute position encoder" and do some
> research.
> >
> >
Original Message
> >
> > > I was thinking of a rudder position indicator. It would take
> some type of
> > sensor mounted on the rudder post that
> > > would determine the amount of left and right rudder rotation from
> dead
> > center and send it to a BS2 for
> > > processing. An LCD mounted on the helm would then be used to
> graphically
> > indicate the amount of left or right
> > > rudder rotation.
> > >
> > > Now if I just knew how to do.
on battery sulfating. We were discussing using a BS2 and an LCD to
graphically indicate the rudder position. Anyway, I thought I would try
and revive it.
The rudders don't even move a full 180 degrees and I do have access to
the rudder post and rudder arms so I could fasten something to them. If
I used a pot, does that mean that for example:
-if the rudder was full left, the pot would be at minimum resistance
-if no rudder (straight), the pot would be one half resistance
-if the rudder was full right, the pot would be at maximum
resistance
Then the stamp would compare the resistance(voltage drop) of the pot to
a range of programmed in values for the various rudder positions and
determine how much rudder to display on the LCD?
Sorry to ask such basic questions but I am new at this.
Does anyone have an example of something like this?
"Dave Mucha " wrote:
> IF you are talking a single flap (rudder) that moves, maybe 180
> degrees, why not just a pot ?
>
> There are multiple places to put it. on the actual shaft of the
> rudder, or on the arm that drives it. should be easy to waterproof.
>
> and is MUCH easier to code for than an encoder.
>
> Dave
>
> --- In basicstamps@yahoogroups.com, Rodent <daweasel@s...> wrote:
> > One solution is an absolute position encoder. Its an encoder wheel
> with a
> > pattern on it that indicates exactly how far in its rotation it is -
> - you
> > have multiple devices to read this pattern. You can buy or make
> your own.
> >
> > Do a search on Yahoo! for "absolute position encoder" and do some
> research.
> >
> >
Original Message
> >
> > > I was thinking of a rudder position indicator. It would take
> some type of
> > sensor mounted on the rudder post that
> > > would determine the amount of left and right rudder rotation from
> dead
> > center and send it to a BS2 for
> > > processing. An LCD mounted on the helm would then be used to
> graphically
> > indicate the amount of left or right
> > > rudder rotation.
> > >
> > > Now if I just knew how to do.
Comments
if you want high resolution, put the pot as a voltage divider and
feed an ADC 0 to 5 volts.
if you want cheap and dirty, make the pot part of and RC circuit, to
create what is called a poor mans ADC.
A note here is that if you have less than 180 degrees movement, and
are pretty good mechanically, use a linear slide pot and a crank
arm. The arm would convert your rotational movement to linear and
your slide could be set for full stroke.
A little trig is all you need. figure out the maximum rotation in
degrees. and the lenght of the slide on the pot. triangulate the
hypotenuse as the pot slide distance and the two sides as how far
from the axis your linkeage needs to be. Center your pot and your
linkage should be set at a right angle from the rudder shaft. let me
know if you would like a cad drawing.
Dave
--- In basicstamps@yahoogroups.com, pslive <pslive@m...> wrote:
> This was part of the Automotive/Marine thread before it somehow got
off
> on battery sulfating. We were discussing using a BS2 and an LCD to
> graphically indicate the rudder position. Anyway, I thought I
would try
> and revive it.
>
>
> The rudders don't even move a full 180 degrees and I do have access
to
> the rudder post and rudder arms so I could fasten something to
them. If
> I used a pot, does that mean that for example:
> -if the rudder was full left, the pot would be at minimum
resistance
>
> -if no rudder (straight), the pot would be one half resistance
> -if the rudder was full right, the pot would be at maximum
> resistance
>
> Then the stamp would compare the resistance(voltage drop) of the
pot to
> a range of programmed in values for the various rudder positions and
> determine how much rudder to display on the LCD?
>
> Sorry to ask such basic questions but I am new at this.
>
> Does anyone have an example of something like this?
>
>
> "Dave Mucha " wrote:
>
> > IF you are talking a single flap (rudder) that moves, maybe 180
> > degrees, why not just a pot ?
> >
> > There are multiple places to put it. on the actual shaft of the
> > rudder, or on the arm that drives it. should be easy to
waterproof.
> >
> > and is MUCH easier to code for than an encoder.
> >
> > Dave
> >
> > --- In basicstamps@yahoogroups.com, Rodent <daweasel@s...> wrote:
> > > One solution is an absolute position encoder. Its an encoder
wheel
> > with a
> > > pattern on it that indicates exactly how far in its rotation it
is -
>
> > - you
> > > have multiple devices to read this pattern. You can buy or make
> > your own.
> > >
> > > Do a search on Yahoo! for "absolute position encoder" and do
some
> > research.
> > >
> > >
Original Message
> > >
> > > > I was thinking of a rudder position indicator. It would take
> > some type of
> > > sensor mounted on the rudder post that
> > > > would determine the amount of left and right rudder rotation
from
> > dead
> > > center and send it to a BS2 for
> > > > processing. An LCD mounted on the helm would then be used to
> > graphically
> > > indicate the amount of left or right
> > > > rudder rotation.
> > > >
> > > > Now if I just knew how to do.
audio taper. Audio taper pots change resistance on a log scale because of
the way sound works.
You also could buy a slide pot (linear taper again), you can then drill a
tiny hole in the arm of the slide wiper and hook that directly to a servo,
or your rudder. I did this for an RC car. I created a cheap speed control by
tying my servo to the slide pot. The slide pot then controlled a transistor
for the voltage to the motor.
You could then take the resistance values, and use a lookup table to decide
what to send to the LCD display.
-Kerry
At 05:36 PM 12/9/02 -0600, you wrote:
>This was part of the Automotive/Marine thread before it somehow got off
>on battery sulfating. We were discussing using a BS2 and an LCD to
>graphically indicate the rudder position. Anyway, I thought I would try
>and revive it.
>
>
>The rudders don't even move a full 180 degrees and I do have access to
>the rudder post and rudder arms so I could fasten something to them. If
>I used a pot, does that mean that for example:
> -if the rudder was full left, the pot would be at minimum resistance
>
> -if no rudder (straight), the pot would be one half resistance
> -if the rudder was full right, the pot would be at maximum
>resistance
>
>Then the stamp would compare the resistance(voltage drop) of the pot to
>a range of programmed in values for the various rudder positions and
>determine how much rudder to display on the LCD?
>
>Sorry to ask such basic questions but I am new at this.
>
>Does anyone have an example of something like this?
>
>
>"Dave Mucha " wrote:
>
>> IF you are talking a single flap (rudder) that moves, maybe 180
>> degrees, why not just a pot ?
>>
>> There are multiple places to put it. on the actual shaft of the
>> rudder, or on the arm that drives it. should be easy to waterproof.
>>
>> and is MUCH easier to code for than an encoder.
>>
>> Dave
>>
>> --- In basicstamps@yahoogroups.com, Rodent <daweasel@s...> wrote:
>> > One solution is an absolute position encoder. Its an encoder wheel
>> with a
>> > pattern on it that indicates exactly how far in its rotation it is -
>
>> - you
>> > have multiple devices to read this pattern. You can buy or make
>> your own.
>> >
>> > Do a search on Yahoo! for "absolute position encoder" and do some
>> research.
>> >
>> >
Original Message
>> >
>> > > I was thinking of a rudder position indicator. It would take
>> some type of
>> > sensor mounted on the rudder post that
>> > > would determine the amount of left and right rudder rotation from
>> dead
>> > center and send it to a BS2 for
>> > > processing. An LCD mounted on the helm would then be used to
>> graphically
>> > indicate the amount of left or right
>> > > rudder rotation.
>> > >
>> > > Now if I just knew how to do.
>
>
>To UNSUBSCRIBE, just send mail to:
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>
>
Happy Holidays: Visit my Christmas webpage at
http://mntnweb.com/xmas.htm
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
to pot (Pun Intended). They no longer make the little bugger either.
Making a new setup was on my list of things to do but I had not
gotten around to it yet...
The mechanics of hooking up some sort of pot to the stern controls is
not going to be fun but not too difficult. You dont even need to
worry about getting it exactly centered or even figuring resistance.
Just get the full port starboard swing of the rudder to give you 0 to
10K of resistance on a pot. I am sure you can find a waterproof pot
of some kind either new at a marine store or used at a military
surplus store.
Sounds like a fun and useful project.
I was going to the surplus store today so I will look around for one
as I scround through the racks.
LCD's are easy... I get new ones and they are anywhere from $2.00 to
$5.00 for 2 x 20 and 4 x 20 lines with controllers.
Since I have a Mercruiser outdrive I will probably include a second
pot for tilt/trim and have it show up on the display as well...
Feel free to drop me a note so we can discuss different ideas on how
to do this...
Paul
pauldee0046@y...
angle shouldn't be an issue. I'd go optical. Much better 'sea-
freindly' then a pot. I'd get an encoder with the A, /A, B, /B, and
Zero, and go to town.
--- In basicstamps@yahoogroups.com, "PaulDee0046 <pauldee0046@y...>"
<pauldee0046@y...> wrote:
> I have a 22' Searay where the pot on the Mercruiser Outdrive has
gone
> to pot (Pun Intended). They no longer make the little bugger
either.
> Making a new setup was on my list of things to do but I had not
> gotten around to it yet...
> The mechanics of hooking up some sort of pot to the stern controls
is
> not going to be fun but not too difficult. You dont even need to
> worry about getting it exactly centered or even figuring
resistance.
> Just get the full port starboard swing of the rudder to give you 0
to
> 10K of resistance on a pot. I am sure you can find a waterproof
pot
> of some kind either new at a marine store or used at a military
> surplus store.
> Sounds like a fun and useful project.
> I was going to the surplus store today so I will look around for
one
> as I scround through the racks.
> LCD's are easy... I get new ones and they are anywhere from $2.00
to
> $5.00 for 2 x 20 and 4 x 20 lines with controllers.
>
> Since I have a Mercruiser outdrive I will probably include a second
> pot for tilt/trim and have it show up on the display as well...
>
> Feel free to drop me a note so we can discuss different ideas on
how
> to do this...
>
> Paul
> pauldee0046@y...
dumb about a lot of electronic
circuits. I know what an encoder is and basically how they work but don't have
a clue (yet!) as to how to design
a circuit to decode them. When you say A, /A, B, /B and Zero what are you
referring to?
You are correct in that I don't need to know the exact angle of the rudders. I
was thinking of just a graphical
indication of the rudder position on an LCD. If the rudders are straight the
display will show a single line in
the middle of the display. As the rudders turn, the display will show
increasing amounts of lines or light area
on the side the rudder was turning towards.
There appears to be several people here that could use something like this.
Thanks for the help.
"anode505 " wrote:
> Well being a 'stink potter' (sorry I'm a blow-boater) exact rudder
> angle shouldn't be an issue. I'd go optical. Much better 'sea-
> freindly' then a pot. I'd get an encoder with the A, /A, B, /B, and
> Zero, and go to town.
>
> --- In basicstamps@yahoogroups.com, "PaulDee0046 <pauldee0046@y...>"
> <pauldee0046@y...> wrote:
> > I have a 22' Searay where the pot on the Mercruiser Outdrive has
> gone
> > to pot (Pun Intended). They no longer make the little bugger
> either.
> > Making a new setup was on my list of things to do but I had not
> > gotten around to it yet...
> > The mechanics of hooking up some sort of pot to the stern controls
> is
> > not going to be fun but not too difficult. You dont even need to
> > worry about getting it exactly centered or even figuring
> resistance.
> > Just get the full port starboard swing of the rudder to give you 0
> to
> > 10K of resistance on a pot. I am sure you can find a waterproof
> pot
> > of some kind either new at a marine store or used at a military
> > surplus store.
> > Sounds like a fun and useful project.
> > I was going to the surplus store today so I will look around for
> one
> > as I scround through the racks.
> > LCD's are easy... I get new ones and they are anywhere from $2.00
> to
> > $5.00 for 2 x 20 and 4 x 20 lines with controllers.
> >
> > Since I have a Mercruiser outdrive I will probably include a second
> > pot for tilt/trim and have it show up on the display as well...
> >
> > Feel free to drop me a note so we can discuss different ideas on
> how
> > to do this...
> >
> > Paul
> > pauldee0046@y...
>
> 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 potmeter connected to a simple milliammeter feeded from a voltage regulator
should give a suficient reading.
ECO
Original Message
From: "pslive" <pslive@m...>
To: <basicstamps@yahoogroups.com>
Sent: Wednesday, December 11, 2002 2:29 AM
Subject: Re: [noparse][[/noparse]basicstamps] Re: Marine Rudder Indicator
> Thanks for the reply. Besides being a 'stink potter' I have to admit that I
am dumb about a lot of electronic
> circuits. I know what an encoder is and basically how they work but don't
have a clue (yet!) as to how to design
> a circuit to decode them. When you say A, /A, B, /B and Zero what are you
referring to?
>
> You are correct in that I don't need to know the exact angle of the rudders.
I was thinking of just a graphical
> indication of the rudder position on an LCD. If the rudders are straight the
display will show a single line in
> the middle of the display. As the rudders turn, the display will show
increasing amounts of lines or light area
> on the side the rudder was turning towards.
>
> There appears to be several people here that could use something like this.
> Thanks for the help.
>
>
>
> "anode505 " wrote:
>
> > Well being a 'stink potter' (sorry I'm a blow-boater) exact rudder
> > angle shouldn't be an issue. I'd go optical. Much better 'sea-
> > freindly' then a pot. I'd get an encoder with the A, /A, B, /B, and
> > Zero, and go to town.
> >
> > --- In basicstamps@yahoogroups.com, "PaulDee0046 <pauldee0046@y...>"
> > <pauldee0046@y...> wrote:
> > > I have a 22' Searay where the pot on the Mercruiser Outdrive has
> > gone
> > > to pot (Pun Intended). They no longer make the little bugger
> > either.
> > > Making a new setup was on my list of things to do but I had not
> > > gotten around to it yet...
> > > The mechanics of hooking up some sort of pot to the stern controls
> > is
> > > not going to be fun but not too difficult. You dont even need to
> > > worry about getting it exactly centered or even figuring
> > resistance.
> > > Just get the full port starboard swing of the rudder to give you 0
> > to
> > > 10K of resistance on a pot. I am sure you can find a waterproof
> > pot
> > > of some kind either new at a marine store or used at a military
> > > surplus store.
> > > Sounds like a fun and useful project.
> > > I was going to the surplus store today so I will look around for
> > one
> > > as I scround through the racks.
> > > LCD's are easy... I get new ones and they are anywhere from $2.00
> > to
> > > $5.00 for 2 x 20 and 4 x 20 lines with controllers.
> > >
> > > Since I have a Mercruiser outdrive I will probably include a second
> > > pot for tilt/trim and have it show up on the display as well...
> > >
> > > Feel free to drop me a note so we can discuss different ideas on
> > how
> > > to do this...
> > >
> > > Paul
> > > pauldee0046@y...
> >
> > 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 the steering wheel itself. The steering wheel is in a cleaner environment
as well.
-Kerry
At 07:29 PM 12/10/02 -0600, you wrote:
>Thanks for the reply. Besides being a 'stink potter' I have to admit that
I am dumb about a lot of electronic
>circuits. I know what an encoder is and basically how they work but don't
have a clue (yet!) as to how to design
>a circuit to decode them. When you say A, /A, B, /B and Zero what are you
referring to?
>
>You are correct in that I don't need to know the exact angle of the
rudders. I was thinking of just a graphical
>indication of the rudder position on an LCD. If the rudders are straight
the display will show a single line in
>the middle of the display. As the rudders turn, the display will show
increasing amounts of lines or light area
>on the side the rudder was turning towards.
>
>There appears to be several people here that could use something like this.
>Thanks for the help.
>
>
>
>"anode505 " wrote:
>
>> Well being a 'stink potter' (sorry I'm a blow-boater) exact rudder
>> angle shouldn't be an issue. I'd go optical. Much better 'sea-
>> freindly' then a pot. I'd get an encoder with the A, /A, B, /B, and
>> Zero, and go to town.
>>
>> --- In basicstamps@yahoogroups.com, "PaulDee0046 <pauldee0046@y...>"
>> <pauldee0046@y...> wrote:
>> > I have a 22' Searay where the pot on the Mercruiser Outdrive has
>> gone
>> > to pot (Pun Intended). They no longer make the little bugger
>> either.
>> > Making a new setup was on my list of things to do but I had not
>> > gotten around to it yet...
>> > The mechanics of hooking up some sort of pot to the stern controls
>> is
>> > not going to be fun but not too difficult. You dont even need to
>> > worry about getting it exactly centered or even figuring
>> resistance.
>> > Just get the full port starboard swing of the rudder to give you 0
>> to
>> > 10K of resistance on a pot. I am sure you can find a waterproof
>> pot
>> > of some kind either new at a marine store or used at a military
>> > surplus store.
>> > Sounds like a fun and useful project.
>> > I was going to the surplus store today so I will look around for
>> one
>> > as I scround through the racks.
>> > LCD's are easy... I get new ones and they are anywhere from $2.00
>> to
>> > $5.00 for 2 x 20 and 4 x 20 lines with controllers.
>> >
>> > Since I have a Mercruiser outdrive I will probably include a second
>> > pot for tilt/trim and have it show up on the display as well...
>> >
>> > Feel free to drop me a note so we can discuss different ideas on
>> how
>> > to do this...
>> >
>> > Paul
>> > pauldee0046@y...
>>
>> 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/
>
>
>
Happy Holidays: Visit my Christmas webpage at
http://mntnweb.com/xmas.htm
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
OFF=/A, same for
Its an optical disc that has the 2 channels A,B photoidiodes and
emitters. The 2 channels are 180 out of phase (when one is on the
other is off) Watching the progression will tell the direction its
moving (via a flip-flop being the defacto) When the zero channel is
ON the rudder would be centered. Count the pulses and adjust the
screen.
--- In basicstamps@yahoogroups.com, pslive <pslive@m...> wrote:
> Thanks for the reply. Besides being a 'stink potter' I have to
admit that I am dumb about a lot of electronic
> circuits. I know what an encoder is and basically how they work
but don't have a clue (yet!) as to how to design
> a circuit to decode them. When you say A, /A, B, /B and Zero what
are you referring to?
>
> You are correct in that I don't need to know the exact angle of the
rudders. I was thinking of just a graphical
> indication of the rudder position on an LCD. If the rudders are
straight the display will show a single line in
> the middle of the display. As the rudders turn, the display will
show increasing amounts of lines or light area
> on the side the rudder was turning towards.
>
> There appears to be several people here that could use something
like this.
> Thanks for the help.
more then a season. A sealed pot, 2-3 seasons.
--- In basicstamps@yahoogroups.com, "Eco" <ecourt@b...> wrote:
> Do it simple !
> A potmeter connected to a simple milliammeter feeded from a voltage
regulator
> should give a suficient reading.
> ECO
>
Original Message
> From: "pslive" <pslive@m...>
> To: <basicstamps@yahoogroups.com>
> Sent: Wednesday, December 11, 2002 2:29 AM
> Subject: Re: [noparse][[/noparse]basicstamps] Re: Marine Rudder Indicator
>
>
> > Thanks for the reply. Besides being a 'stink potter' I have to
admit that I am dumb about a lot of electronic
> > circuits. I know what an encoder is and basically how they work
but don't have a clue (yet!) as to how to design
> > a circuit to decode them. When you say A, /A, B, /B and Zero
what are you referring to?
> >
> > You are correct in that I don't need to know the exact angle of
the rudders. I was thinking of just a graphical
> > indication of the rudder position on an LCD. If the rudders are
straight the display will show a single line in
> > the middle of the display. As the rudders turn, the display will
show increasing amounts of lines or light area
> > on the side the rudder was turning towards.
> >
> > There appears to be several people here that could use something
like this.
> > Thanks for the help.
> >
> >
> >
> > "anode505 " wrote:
> >
> > > Well being a 'stink potter' (sorry I'm a blow-boater) exact
rudder
> > > angle shouldn't be an issue. I'd go optical. Much better 'sea-
> > > freindly' then a pot. I'd get an encoder with the A, /A,
B, /B, and
> > > Zero, and go to town.
> > >
> > > --- In basicstamps@yahoogroups.com, "PaulDee0046
<pauldee0046@y...>"
> > > <pauldee0046@y...> wrote:
> > > > I have a 22' Searay where the pot on the Mercruiser Outdrive
has
> > > gone
> > > > to pot (Pun Intended). They no longer make the little bugger
> > > either.
> > > > Making a new setup was on my list of things to do but I had
not
> > > > gotten around to it yet...
> > > > The mechanics of hooking up some sort of pot to the stern
controls
> > > is
> > > > not going to be fun but not too difficult. You dont even
need to
> > > > worry about getting it exactly centered or even figuring
> > > resistance.
> > > > Just get the full port starboard swing of the rudder to give
you 0
> > > to
> > > > 10K of resistance on a pot. I am sure you can find a
waterproof
> > > pot
> > > > of some kind either new at a marine store or used at a
military
> > > > surplus store.
> > > > Sounds like a fun and useful project.
> > > > I was going to the surplus store today so I will look around
for
> > > one
> > > > as I scround through the racks.
> > > > LCD's are easy... I get new ones and they are anywhere from
$2.00
> > > to
> > > > $5.00 for 2 x 20 and 4 x 20 lines with controllers.
> > > >
> > > > Since I have a Mercruiser outdrive I will probably include a
second
> > > > pot for tilt/trim and have it show up on the display as
well...
> > > >
> > > > Feel free to drop me a note so we can discuss different ideas
on
> > > how
> > > > to do this...
> > > >
> > > > Paul
> > > > pauldee0046@y...
> > >
> > > 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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> >
> >
> >
> >
subject to being under water or splashed
but it is a salty sea air environment with potential condensation.
Are there any particular brands of encoders that would work best for this
application? Does anyone know if there
is a circuit layout someplace that will give me an idea of how to start this
project?
Thanks to everyone for the help.
"anode505 " wrote:
> A,/A, B, /B and zero are channels. Two channel (either ON=A or
> OFF=/A, same for
> Its an optical disc that has the 2 channels A,B photoidiodes and
> emitters. The 2 channels are 180 out of phase (when one is on the
> other is off) Watching the progression will tell the direction its
> moving (via a flip-flop being the defacto) When the zero channel is
> ON the rudder would be centered. Count the pulses and adjust the
> screen.
>
> --- In basicstamps@yahoogroups.com, pslive <pslive@m...> wrote:
> > Thanks for the reply. Besides being a 'stink potter' I have to
> admit that I am dumb about a lot of electronic
> > circuits. I know what an encoder is and basically how they work
> but don't have a clue (yet!) as to how to design
> > a circuit to decode them. When you say A, /A, B, /B and Zero what
> are you referring to?
> >
> > You are correct in that I don't need to know the exact angle of the
> rudders. I was thinking of just a graphical
> > indication of the rudder position on an LCD. If the rudders are
> straight the display will show a single line in
> > the middle of the display. As the rudders turn, the display will
> show increasing amounts of lines or light area
> > on the side the rudder was turning towards.
> >
> > There appears to be several people here that could use something
> like this.
> > Thanks for the 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/
My boat has an inboard engine so the rudder posts come up through the hull to a
compartment inside of the boat.
The steering wheel idea is a good one but the steering is hydraulic and about
the accessible moving part is the
rudder posts, rudder arms, and linkages. No external moving parts at the helm
other than the wheel. The steering
wheel moves but it takes about 4 full rotations to move the rudder from
center(no rudder) to full rudder on one
side . I'm not sure there is anyplace to mount a pot next to the steering
wheel. I suppose some kind of device
(something like a ball mouse) could be made that would rub on the hub of the
wheel. I'm not sure how reliable it
would be due to slippage caused by moisture, etc, or because of out of roundness
of the wheel hub.
Thanks
Kerry Barlow wrote:
> You do not have to hook to the rudder/outboard do you? Can you hook the pot
> to the steering wheel itself. The steering wheel is in a cleaner environment
> as well.
> -Kerry
>
> At 07:29 PM 12/10/02 -0600, you wrote:
> >Thanks for the reply. Besides being a 'stink potter' I have to admit that
> I am dumb about a lot of electronic
> >circuits. I know what an encoder is and basically how they work but don't
> have a clue (yet!) as to how to design
> >a circuit to decode them. When you say A, /A, B, /B and Zero what are you
> referring to?
> >
> >You are correct in that I don't need to know the exact angle of the
> rudders. I was thinking of just a graphical
> >indication of the rudder position on an LCD. If the rudders are straight
> the display will show a single line in
> >the middle of the display. As the rudders turn, the display will show
> increasing amounts of lines or light area
> >on the side the rudder was turning towards.
> >
> >There appears to be several people here that could use something like this.
> >Thanks for the help.
> >
> >
> >
> >"anode505 " wrote:
> >
> >> Well being a 'stink potter' (sorry I'm a blow-boater) exact rudder
> >> angle shouldn't be an issue. I'd go optical. Much better 'sea-
> >> freindly' then a pot. I'd get an encoder with the A, /A, B, /B, and
> >> Zero, and go to town.
> >>
> >> --- In basicstamps@yahoogroups.com, "PaulDee0046 <pauldee0046@y...>"
> >> <pauldee0046@y...> wrote:
> >> > I have a 22' Searay where the pot on the Mercruiser Outdrive has
> >> gone
> >> > to pot (Pun Intended). They no longer make the little bugger
> >> either.
> >> > Making a new setup was on my list of things to do but I had not
> >> > gotten around to it yet...
> >> > The mechanics of hooking up some sort of pot to the stern controls
> >> is
> >> > not going to be fun but not too difficult. You dont even need to
> >> > worry about getting it exactly centered or even figuring
> >> resistance.
> >> > Just get the full port starboard swing of the rudder to give you 0
> >> to
> >> > 10K of resistance on a pot. I am sure you can find a waterproof
> >> pot
> >> > of some kind either new at a marine store or used at a military
> >> > surplus store.
> >> > Sounds like a fun and useful project.
> >> > I was going to the surplus store today so I will look around for
> >> one
> >> > as I scround through the racks.
> >> > LCD's are easy... I get new ones and they are anywhere from $2.00
> >> to
> >> > $5.00 for 2 x 20 and 4 x 20 lines with controllers.
> >> >
> >> > Since I have a Mercruiser outdrive I will probably include a second
> >> > pot for tilt/trim and have it show up on the display as well...
> >> >
> >> > Feel free to drop me a note so we can discuss different ideas on
> >> how
> >> > to do this...
> >> >
> >> > Paul
> >> > pauldee0046@y...
> >>
> >> 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/
> >
> >
> >
> Happy Holidays: Visit my Christmas webpage at
> http://mntnweb.com/xmas.htm
> 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
>
> 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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interpret an encoder. I think it was # 8 but cannot tell because when I
went to the parallax/nuts and volts section and guess what #8 is missing.
Maybe Erik will read this and get that fixed.
Original Message
From: pslive [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Idu_fNpxJmOguZ6tvD7HR96COMvEEcptwAixVPEAFCxOx_cg9UjmOVF4F8qJWY740Y9zIeEgRYtTOIbb6CQ]pslive@m...[/url
Sent: Wednesday, December 11, 2002 8:24 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] Re: Marine Rudder Indicator
Thanks for the information. The rudder posts and surrounding area is not
subject to being under water or splashed
but it is a salty sea air environment with potential condensation.
Are there any particular brands of encoders that would work best for this
application? Does anyone know if there
is a circuit layout someplace that will give me an idea of how to start this
project?
Thanks to everyone for the help.
"anode505 " wrote:
> A,/A, B, /B and zero are channels. Two channel (either ON=A or
> OFF=/A, same for
> Its an optical disc that has the 2 channels A,B photoidiodes and
> emitters. The 2 channels are 180 out of phase (when one is on the
> other is off) Watching the progression will tell the direction its
> moving (via a flip-flop being the defacto) When the zero channel is
> ON the rudder would be centered. Count the pulses and adjust the
> screen.
>
> --- In basicstamps@yahoogroups.com, pslive <pslive@m...> wrote:
> > Thanks for the reply. Besides being a 'stink potter' I have to
> admit that I am dumb about a lot of electronic
> > circuits. I know what an encoder is and basically how they work
> but don't have a clue (yet!) as to how to design
> > a circuit to decode them. When you say A, /A, B, /B and Zero what
> are you referring to?
> >
> > You are correct in that I don't need to know the exact angle of the
> rudders. I was thinking of just a graphical
> > indication of the rudder position on an LCD. If the rudders are
> straight the display will show a single line in
> > the middle of the display. As the rudders turn, the display will
> show increasing amounts of lines or light area
> > on the side the rudder was turning towards.
> >
> > There appears to be several people here that could use something
> like this.
> > Thanks for the 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/
[noparse][[/noparse]Non-text portions of this message have been removed]
elsewhere in the first issue, if I remember right. You can roll your own
encoder and seal the board with conformal coating -- it should last alot
longer than a pot.
Original Message
> There was a Nuts and Volts issue way back which described how to read and
> interpret an encoder. I think it was # 8 but cannot tell because when I
> went to the parallax/nuts and volts section and guess what #8 is missing.
> Maybe Erik will read this and get that fixed.