Wireless serial comms to a Stamp
RF can go only few centimeters bellow water.
ACJacques
Bruce Bates wrote:
>
> At 8/6/2001 Monday 05:12 AM, Rob Werner promulgated:
> >Hi all,
> >
> >I'm new to the group so please bare with me. [noparse]:)[/noparse]
> >
> >I am interested in designing a remote control system for a model submarine
> >using a Basic Stamp as the central control unit. I would like to be able to
> >send serial commands to the Stamp over a wireless link. Does anyone have
> >any info on RF data-comms with the Basic Stamp or something similar?
> >
> >Thanks!
> >
> >-Rob
> Hi Rob -
>
> Welcome to the group. You can find an entire array of remote control products
> here on the Rentron Site: http://www.rentron.com/PicBasic/RemoteControl.htm
>
> That should get you started. If you have any questions, the owner of
> Rentron is
> a member of this group as well. His name is Bruce Reynolds, and I'm sure he'll
> be happy to help you.
>
> Good luck with your project, it sounds real interesting.
>
> Regards,
>
> Bruce Bates
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
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of the message will be ignored.
>
>
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ACJacques
Bruce Bates wrote:
>
> At 8/6/2001 Monday 05:12 AM, Rob Werner promulgated:
> >Hi all,
> >
> >I'm new to the group so please bare with me. [noparse]:)[/noparse]
> >
> >I am interested in designing a remote control system for a model submarine
> >using a Basic Stamp as the central control unit. I would like to be able to
> >send serial commands to the Stamp over a wireless link. Does anyone have
> >any info on RF data-comms with the Basic Stamp or something similar?
> >
> >Thanks!
> >
> >-Rob
> Hi Rob -
>
> Welcome to the group. You can find an entire array of remote control products
> here on the Rentron Site: http://www.rentron.com/PicBasic/RemoteControl.htm
>
> That should get you started. If you have any questions, the owner of
> Rentron is
> a member of this group as well. His name is Bruce Reynolds, and I'm sure he'll
> be happy to help you.
>
> Good luck with your project, it sounds real interesting.
>
> 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/
Comments
implement. Ultrasonics may be slow, and very expensive. For serial
cable you need just the cable and a waterproof connector.
Cable also may will be used for emergency recovery in a sub failure.
This is because most professional ROVs have a tether.
What is the max distance and depth you intend to go?
Fresh or saltwater?
How clear is the water ?
ACJacques
Rob Werner wrote:
>
> Hmmm... I thought that might be the case. There are no other viable
> options are there? I guess I could use a cable, but serial cables have
> limited rang also. Any ideas?
>
> Thanks,
>
> -Rob
>
> on 3/8/01 9:07 AM, AC Jacques at acjacques@i... wrote:
>
> > RF can go only few centimeters bellow water.
> > ACJacques
> >
> > Bruce Bates wrote:
> >>
> >> At 8/6/2001 Monday 05:12 AM, Rob Werner promulgated:
> >>> Hi all,
> >>>
> >>> I'm new to the group so please bare with me. [noparse]:)[/noparse]
> >>>
> >>> I am interested in designing a remote control system for a model submarine
> >>> using a Basic Stamp as the central control unit. I would like to be able
to
> >>> send serial commands to the Stamp over a wireless link. Does anyone have
> >>> any info on RF data-comms with the Basic Stamp or something similar?
> >>>
> >>> Thanks!
> >>>
> >>> -Rob
> >> Hi Rob -
> >>
> >> Welcome to the group. You can find an entire array of remote control
products
> >> here on the Rentron Site: http://www.rentron.com/PicBasic/RemoteControl.htm
> >>
> >> That should get you started. If you have any questions, the owner of
> >> Rentron is
> >> a member of this group as well. His name is Bruce Reynolds, and I'm sure
> >> he'll
> >> be happy to help you.
> >>
> >> Good luck with your project, it sounds real interesting.
> >>
> >> 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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or pull down (depending of your seial mode) resistor at one end don't
worry about noise. I have used this up to 200 meters bilateral in the
same wire at bauds rates up to 50Kbps withtout problem. And it is
running side by side with are several power 300VAC lines switching!.
Video should be sent thru coaxial or thru a twisted pair (in this case
you must use a diferential driver). Most difficult to implement this
approach is find an appropriate multiconductor cable not too much
expensive (custom made) and not so bulky and heavy underwater(try
Monogami) .A S-VHS cable that have two small coaxials are a good and
inexpensive starting point. Take extra care if you intend use AC
underwater. Could be lethal.Always use DC and not more than 24 VDC. UW
connectors could be avaiable from Impulse Enterprises (CA) ranging from
~ $40 to $200 or you could use a fixed plastic cable gland with IP68
rating (~ $ 2.00).
ACJacques
Rob Werner wrote:
>
> Ahhh. I was under the impression that serial cables started to pick up
> interference after more than a few meters but I wasn't really sure.
>
> Anyway, serial sounds good. I won't have to worry about batteries now...
> And I'll be able to implement audio/video!
>
> So I should be able to send serial commands over a cable several meters
> long? What would be the realistic maximum range to you think? Is there a
> particular type of cable I should use (to avoid noise)?
>
> I hope this stuff isn't OT for the group.
>
> Thanks!
>
> -Rob
>
> PS. I am planning predominantly for salt water (the local harbour). The
> water isn't that clear...
>
> on 3/8/01 10:11 AM, AC Jacques at acjacques@i... wrote:
>
> > Serial cables may go kilometers and is very easy and straightforward to
> > implement. Ultrasonics may be slow, and very expensive. For serial
> > cable you need just the cable and a waterproof connector.
> > Cable also may will be used for emergency recovery in a sub failure.
> > This is because most professional ROVs have a tether.
> > What is the max distance and depth you intend to go?
> > Fresh or saltwater?
> > How clear is the water ?
> > ACJacques
> >
> > Rob Werner wrote:
> >>
> >> Hmmm... I thought that might be the case. There are no other viable
> >> options are there? I guess I could use a cable, but serial cables have
> >> limited rang also. Any ideas?
> >>
> >> Thanks,
> >>
> >> -Rob
> >>
>
> 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/
I'm new to the group so please bare with me. [noparse]:)[/noparse]
I am interested in designing a remote control system for a model submarine
using a Basic Stamp as the central control unit. I would like to be able to
send serial commands to the Stamp over a wireless link. Does anyone have
any info on RF data-comms with the Basic Stamp or something similar?
Thanks!
-Rob
>Hi all,
>
>I'm new to the group so please bare with me. [noparse]:)[/noparse]
>
>I am interested in designing a remote control system for a model submarine
>using a Basic Stamp as the central control unit. I would like to be able to
>send serial commands to the Stamp over a wireless link. Does anyone have
>any info on RF data-comms with the Basic Stamp or something similar?
>
>Thanks!
>
>-Rob
Hi Rob -
Welcome to the group. You can find an entire array of remote control products
here on the Rentron Site: http://www.rentron.com/PicBasic/RemoteControl.htm
That should get you started. If you have any questions, the owner of
Rentron is
a member of this group as well. His name is Bruce Reynolds, and I'm sure he'll
be happy to help you.
Good luck with your project, it sounds real interesting.
Regards,
Bruce Bates
options are there? I guess I could use a cable, but serial cables have
limited rang also. Any ideas?
Thanks,
-Rob
on 3/8/01 9:07 AM, AC Jacques at acjacques@i... wrote:
> RF can go only few centimeters bellow water.
> ACJacques
>
> Bruce Bates wrote:
>>
>> At 8/6/2001 Monday 05:12 AM, Rob Werner promulgated:
>>> Hi all,
>>>
>>> I'm new to the group so please bare with me. [noparse]:)[/noparse]
>>>
>>> I am interested in designing a remote control system for a model submarine
>>> using a Basic Stamp as the central control unit. I would like to be able to
>>> send serial commands to the Stamp over a wireless link. Does anyone have
>>> any info on RF data-comms with the Basic Stamp or something similar?
>>>
>>> Thanks!
>>>
>>> -Rob
>> Hi Rob -
>>
>> Welcome to the group. You can find an entire array of remote control products
>> here on the Rentron Site: http://www.rentron.com/PicBasic/RemoteControl.htm
>>
>> That should get you started. If you have any questions, the owner of
>> Rentron is
>> a member of this group as well. His name is Bruce Reynolds, and I'm sure
>> he'll
>> be happy to help you.
>>
>> Good luck with your project, it sounds real interesting.
>>
>> 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/
>
>
dertimine the range.
norm
>From: Rob Werner <rwerner@b...>
>Reply-To: basicstamps@yahoogroups.com
>To: <basicstamps@yahoogroups.com>
>Subject: Re: [noparse][[/noparse]basicstamps] Wireless serial comms to a Stamp
>Date: Mon, 06 Aug 2001 22:14:27 +1000
>
>Hmmm... I thought that might be the case. There are no other viable
>options are there? I guess I could use a cable, but serial cables have
>limited rang also. Any ideas?
>
>Thanks,
>
>-Rob
>
>on 3/8/01 9:07 AM, AC Jacques at acjacques@i... wrote:
>
> > RF can go only few centimeters bellow water.
> > ACJacques
> >
> > Bruce Bates wrote:
> >>
> >> At 8/6/2001 Monday 05:12 AM, Rob Werner promulgated:
> >>> Hi all,
> >>>
> >>> I'm new to the group so please bare with me. [noparse]:)[/noparse]
> >>>
> >>> I am interested in designing a remote control system for a model
>submarine
> >>> using a Basic Stamp as the central control unit. I would like to be
>able to
> >>> send serial commands to the Stamp over a wireless link. Does anyone
>have
> >>> any info on RF data-comms with the Basic Stamp or something similar?
> >>>
> >>> Thanks!
> >>>
> >>> -Rob
> >> Hi Rob -
> >>
> >> Welcome to the group. You can find an entire array of remote control
>products
> >> here on the Rentron Site:
>http://www.rentron.com/PicBasic/RemoteControl.htm
> >>
> >> That should get you started. If you have any questions, the owner of
> >> Rentron is
> >> a member of this group as well. His name is Bruce Reynolds, and I'm
>sure
> >> he'll
> >> be happy to help you.
> >>
> >> Good luck with your project, it sounds real interesting.
> >>
> >> 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.
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
_________________________________________________________________
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interference after more than a few meters but I wasn't really sure.
Anyway, serial sounds good. I won't have to worry about batteries now...
And I'll be able to implement audio/video!
So I should be able to send serial commands over a cable several meters
long? What would be the realistic maximum range to you think? Is there a
particular type of cable I should use (to avoid noise)?
I hope this stuff isn't OT for the group.
Thanks!
-Rob
PS. I am planning predominantly for salt water (the local harbour). The
water isn't that clear...
on 3/8/01 10:11 AM, AC Jacques at acjacques@i... wrote:
> Serial cables may go kilometers and is very easy and straightforward to
> implement. Ultrasonics may be slow, and very expensive. For serial
> cable you need just the cable and a waterproof connector.
> Cable also may will be used for emergency recovery in a sub failure.
> This is because most professional ROVs have a tether.
> What is the max distance and depth you intend to go?
> Fresh or saltwater?
> How clear is the water ?
> ACJacques
>
> Rob Werner wrote:
>>
>> Hmmm... I thought that might be the case. There are no other viable
>> options are there? I guess I could use a cable, but serial cables have
>> limited rang also. Any ideas?
>>
>> Thanks,
>>
>> -Rob
>>
range. You get one transmitter and one receiver for $17.
If you want quality, there are some commercial units out there in the $200
range per tranceiver that can communicate for miles.
Original Message
> I am interested in designing a remote control system for a model submarine
> using a Basic Stamp as the central control unit. I would like to be able
to
> send serial commands to the Stamp over a wireless link. Does anyone have
> any info on RF data-comms with the Basic Stamp or something similar?
to about 750 feet with RS-232 if you use a good quality shielded cable and
run at 300 baud. You can get 2,000+ feet out of RS485 at 9,600 baud with no
problem.
Original Message
> Ahhh. I was under the impression that serial cables started to pick up
> interference after more than a few meters but I wasn't really sure.
>
> Anyway, serial sounds good. I won't have to worry about batteries now...
> And I'll be able to implement audio/video!
>
> So I should be able to send serial commands over a cable several meters
> long? What would be the realistic maximum range to you think? Is there a
> particular type of cable I should use (to avoid noise)?
Try the TWS/RWS combination. Inexpensive and efficient. I believe it is
www.rentron.com. Let me know if I can help.
Sid