HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jan 25, 2010, 10:46 PM
billpa's Avatar
Joined Nov 2003
4,936 Posts
gobigkahuna, we recently added firmware to our "Flight Data Recorder" to monitor a 3 axis digital compass and display a heading. The performance of this compass (HMC6343) is not too satisfying, though. Acceleration, tilt/roll, vibration, etc., seems to cause quite a bit of variation in the compass reading. The plan was to port the firmware over to our eLogger and OSD Pro, but more investigation is needed to determine if another compass would work better.

Regards,

Bill, for Eagle Tree
billpa is offline Find More Posts by billpa
Site Sponsor
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 26, 2010, 01:19 AM
Registered User
North Carolina
Joined Nov 2008
388 Posts
Thanks for the update Bill. Would the compass performance be any better at slower vehicle speeds? My application would be to use this in an underwater robot (max speeds around 2-3 knots). The only other 3 axis digital compass I know of with reportedly good performance are the ones by Ocean Server ( http://www.sparkfun.com/commerce/pro...oducts_id=8960 ) which cost $100 more than the HMC6343 and output NMEA sentences instead of I2C.
gobigkahuna is offline Find More Posts by gobigkahuna
Reply With Quote
Old Jan 29, 2010, 07:03 PM
billpa's Avatar
Joined Nov 2003
4,936 Posts
gobigkahuna, the compass performance issues were due to the wild and crazy forces encountered in an aircraft, I believe. I suspect the HMC6343 would work well in your slow moving robot.

It's quite easy to wire up the HMC6343 board from sparkfun.com to our car data recorder. The support for that is in an alpha version of the software.

Regards,

Bill, for Eagle Tree
billpa is offline Find More Posts by billpa
Site Sponsor
Reply With Quote
Old Jan 30, 2010, 04:12 AM
Registered User
North Carolina
Joined Nov 2008
388 Posts
Thanks Bill. I'm actually more interested in an OSD Pro. Any idea if / when the code will be ported?
gobigkahuna is offline Find More Posts by gobigkahuna
Reply With Quote
Old Feb 05, 2010, 08:50 PM
billpa's Avatar
Joined Nov 2003
4,936 Posts
gobigkahuna, it should be working now with the OSD Pro. I think we are in email contact also?

Regards,

Bill, for Eagle Tree
billpa is offline Find More Posts by billpa
Site Sponsor
Reply With Quote
Old Feb 06, 2010, 03:51 AM
Registered User
North Carolina
Joined Nov 2008
388 Posts
Yes, I got your email. Thanks very much.
gobigkahuna is offline Find More Posts by gobigkahuna
Reply With Quote
Old Jul 25, 2010, 01:48 PM
Registered User
Joined Feb 2009
2 Posts
Eagle Tree magnetic compass??

I have OSD pro and I need magnetic compass.
In an old thread i saw that i could use HMC6343 to get a compass in my submarine.
Does this work?

Where could I buy this HMC6343 and is there any schematic of this?

Thanks in advice!
xenonfire is offline Find More Posts by xenonfire
Reply With Quote
Old Jul 26, 2010, 05:43 PM
billpa's Avatar
Joined Nov 2003
4,936 Posts
Hi xenon, we have some support for the HMC6343 board which is available from sparkfun.com. You'll need to solder on a diode to the board to make it work, however.
billpa is offline Find More Posts by billpa
Site Sponsor
Reply With Quote
Old Feb 05, 2013, 08:42 PM
Registered User
cwleveck's Avatar
United States, OR, Salem
Joined Aug 2010
26 Posts
Um, so just out of curiosity...... what other "hidden" sensors may have support within the current alpha software? The reason I ask is because I am working on some fairly complicated systems and would love to be using eagletree for my "production" product instead of just for testing. I mean if there is more support for sensors or a way for us to gain access to the data stream for use with microcontrollers or even just to be able to display the data on an additional device without having use the picture, or being able to tx the data without having to use my video stream would be awesome.
cwleveck is offline Find More Posts by cwleveck
Reply With Quote
Old Feb 07, 2013, 04:35 PM
billpa's Avatar
Joined Nov 2003
4,936 Posts
Hi, the HMC6343 did not work well. We're working on a more integrated compass solution now.

Re other sensors, could you let me know what you might be needing? Feel free to email me if that's better.
billpa is offline Find More Posts by billpa
Site Sponsor
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion How do I transfer Data from Fut 9chp - Fut 9chp with cam- pac ? djdaveq Radios 4 Aug 21, 2008 01:18 PM
Monokote Glue,How to remove glue from top covering? speedo Electric Plane Talk 4 Apr 11, 2002 09:27 AM
Have Whatt Meter, how to interpret data? ErnieR Power Systems 11 Mar 14, 2002 07:08 AM
how to remove econocote from my twinstar flyer10 Foamies (Kits) 1 Apr 21, 2001 01:54 AM