Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 02-05-2013, 18:17   #1
Registered User

Join Date: May 2013
Posts: 2
Inexpensive heading sensor?

Is anyone having any luck with the cheaper heading sensors? If so what models is everyone using?

Also I couldn't find much direction on how they connect and are configured in opencpn. Am I missing something in the manual? I plan on connecting it directly to the pc's serial port. Is it really as easy as power and ground and connecting the db9 pin 2 and 3 to the nema?
__________________

__________________
Turbofly is offline   Reply With Quote
Old 02-05-2013, 22:54   #2
Registered User

Join Date: Aug 2010
Posts: 298
Re: Inexpensive heading sensor?

It depends on the type of heading sensor. I have build one based on a Arduino board, it has nmea output strings and ttl logic to connect it to a computer or, in my case, the S2 Shipmodul.
__________________

__________________
George64 is offline   Reply With Quote
Old 03-05-2013, 05:26   #3
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,580
Images: 240
Re: Inexpensive heading sensor?

Greetings and welcome aboard the CF, Turbofly.
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 03-05-2013, 06:18   #4
Registered User

Join Date: Aug 2009
Location: Hudson Valley N.Y.
Boat: contessa 32
Posts: 826
Re: Inexpensive heading sensor?

WTF ??? I thought one had a compass on board to give the heading.

"One does not need a weatherman to tell which way the wind blows'---Bob Dylan
__________________
mrohr is offline   Reply With Quote
Old 03-05-2013, 06:33   #5
Nearly an old salt
 
goboatingnow's Avatar

Cruisers Forum Supporter

Join Date: Jun 2009
Posts: 13,649
Images: 3
Quote:
Originally Posted by mrohr View Post
WTF ??? I thought one had a compass on board to give the heading.

"One does not need a weatherman to tell which way the wind blows'---Bob Dylan
Obvious troll is obvious
__________________
Check out my new blog on smart boat technology, networking and gadgets for the connected sailor! - http://smartboats.tumblr.com
goboatingnow is offline   Reply With Quote
Old 03-05-2013, 09:25   #6
Registered User

Join Date: Aug 2009
Location: Hudson Valley N.Y.
Boat: contessa 32
Posts: 826
Re: Inexpensive heading sensor?

Quote:
Originally Posted by goboatingnow View Post
Obvious troll is obvious

Au contraire mon ami ; but rather an observation and an opinion , even if not yours.
regards Bob
__________________
mrohr is offline   Reply With Quote
Old 03-05-2013, 09:45   #7
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,150
Re: Inexpensive heading sensor?

He is obviously looking for an electronic compass with a NMEA out. You can get them with just a bare wire that can connect in through a db9 connector or you can get them with a USB 2 connector to your computer.

I found these by doing a Google image search, "compass NMEA".

NMEA Compass Sensor

http://www.pdqconnect.com/flugate-co...digital-yacht/
__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 03-05-2013, 17:39   #8
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 9,374
Re: Inexpensive heading sensor?

Someday you might be able to have two cheap GPS puck sensors at each end of the boat and two nmea feeds to opencpn with a plugin, that would calculate direction.

You might even be able to calculate pitch and yaw with two more sensors, but since they don't have gyroscopes they won't have acceleration and thus won't be as accurate in all probability.
__________________
rgleason is online now   Reply With Quote
Old 04-05-2013, 17:11   #9
Registered User

Join Date: May 2013
Posts: 2
Re: Inexpensive heading sensor?

Quote:
Originally Posted by George64 View Post
It depends on the type of heading sensor. I have build one based on a Arduino board, it has nmea output strings and ttl logic to connect it to a computer or, in my case, the S2 Shipmodul.
Thanks for the info, a quick google search returns this.

Build Your Own Solid State Compass for $60 | Matrix Mariner Blog

Is this similar to what you are using? I ordered the parts. I figured it was cheap enough to try.

rgleason

Way to think outside the box. However with a 26 foot boat and lets say +/- 2meter accuracy of gps on a good day. That might not work that well. However if you have a 100' schooner, Well..... that's a different story.

Ill give this Ardino board a try and give you guys a update.
__________________
Turbofly is offline   Reply With Quote
Old 07-05-2013, 10:23   #10
Registered User

Join Date: Aug 2010
Posts: 298
Re: Inexpensive heading sensor?

Quote:
Originally Posted by Turbofly View Post
Thanks for the info, a quick google search returns this.

Build Your Own Solid State Compass for $60 | Matrix Mariner Blog

Is this similar to what you are using? I ordered the parts. I figured it was cheap enough to try.

rgleason

Way to think outside the box. However with a 26 foot boat and lets say +/- 2meter accuracy of gps on a good day. That might not work that well. However if you have a 100' schooner, Well..... that's a different story.

Ill give this Ardino board a try and give you guys a update.
Search the forum and you'll find an explaination of what I've buld with arduino
__________________
George64 is offline   Reply With Quote
Old 07-05-2013, 12:29   #11
Nearly an old salt
 
goboatingnow's Avatar

Cruisers Forum Supporter

Join Date: Jun 2009
Posts: 13,649
Images: 3
Quote:
Originally Posted by rgleason View Post
Someday you might be able to have two cheap GPS puck sensors at each end of the boat and two nmea feeds to opencpn with a plugin, that would calculate direction.

You might even be able to calculate pitch and yaw with two more sensors, but since they don't have gyroscopes they won't have acceleration and thus won't be as accurate in all probability.
Its already done , it's called a satellite compass. ( Furuno , simrad)

Dave
__________________
Check out my new blog on smart boat technology, networking and gadgets for the connected sailor! - http://smartboats.tumblr.com
goboatingnow is offline   Reply With Quote
Old 09-11-2013, 07:22   #12
Registered User

Join Date: Sep 2010
Location: Alaska
Posts: 69
Re: Inexpensive heading sensor?

Does the do it yourself Arduino Board Compass Module, Setup work for Stabilizing Chart Overlay, on the OpenCpn Radar system? Seems Inexpensive enough.
Any Help appreciated.

Thanks
__________________
rontom is offline   Reply With Quote
Old 09-11-2013, 07:49   #13
Registered User
 
Freedom45's Avatar

Join Date: Jan 2012
Location: Somewhere in the Pacific
Boat: Freedom 45 hull#1
Posts: 177
Re: Inexpensive heading sensor?

Quote:
Originally Posted by rgleason View Post
Someday you might be able to have two cheap GPS puck sensors at each end of the boat and two nmea feeds to opencpn with a plugin, that would calculate direction.

You might even be able to calculate pitch and yaw with two more sensors, but since they don't have gyroscopes they won't have acceleration and thus won't be as accurate in all probability.
That day is already here.
I just bought a small "quadcopter" that has gps, roll/yaw/pitch/barometric sensors/compass all built in...it will hold position and altitude in the wind like it was mounted on a pole and fly itself back and land...the whole thing was less than $500 u.s.
Use it for video......neat stuff
By the way, the compass is less than 1/2 inch square, about 1/8 inch thick!

Chuck
__________________
I Sail, Therefor I ARRrrr...
Freedom45 is offline   Reply With Quote
Old 09-11-2013, 09:19   #14
Registered User

Join Date: May 2011
Posts: 847
Re: Inexpensive heading sensor?

Quote:
Originally Posted by goboatingnow View Post
Its already done , it's called a satellite compass. ( Furuno , simrad)

Dave
Yep in use for many years now. Especially around the magnetic poles where magnetic compasses are less useful.

Also check out the Airmar PB150 and PB200 etc.. Heading, roll, pitch, wind, etc. etc. all in one package. Very reliable, not cheap... but hassle free NMEA 2000 or 0183. Maretron make one too I think.
__________________
Littlechay is offline   Reply With Quote
Old 09-11-2013, 09:28   #15
Senior Cruiser
 
rebel heart's Avatar

Cruisers Forum Supporter

Join Date: Oct 2005
Posts: 6,190
Images: 3
Re: Inexpensive heading sensor?

Doesn't a normal GPS with nmea have the cog?
__________________

__________________
rebel heart is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:15.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.