[PSUBS-MAILIST] Compass Choice

[Jon Wallace]

Alan,

I am aware of that one as well.  They have a model that talks "serial" which means it could interface with a microprocessor like the arduino.

Any three axis tilt compensated IC compass will also provide yaw, pitch, and roll in addition to compass readings.  Scott Waters was lucky enough to pick up one of the last HMC models from Honeywell which I coded up for him.  Honeywell is no longer making that particular model but it was highly accurate and only cost $150 with the breakout board.  Remaining Honeywell models are in the near $400 (US) price range.

Jon


--------------------------------------------
On Mon, 1/13/14, Alan James <alanlindsayjames at yahoo.com> wrote:

 Subject: Re: [PSUBS-MAILIST] Compass Choice
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Date: Monday, January 13, 2014, 10:45 PM
 
 Hi
 Jon,I
 found this off the shelf unit for $250- (made in USA) It is
 designed for marine applications&
 has yaw, pitch & roll which is a G.L. requirement. So
 it's looking attractive.http://www.ocean-server.com/compass.html
 It looks like I would have to
 run it off a computer though, which I didn't want to
 do,but may be forced down this
 path. Alan
 
 
       
  From: Jon Wallace
 <jonw at psubs.org>
  To: Personal
 Submersibles General Discussion
 <personal_submersibles at psubs.org> 
  Sent:
 Tuesday, January 14, 2014 2:09 PM
  Subject: Re:
 [PSUBS-MAILIST] Compass Choice
    
 
 A tilt-compensated electronic compass
 (three axis, plus three axis 
 accelerometer)
 would work connected
  to a small microcontroller like the 
 Arduino UNO.  The HMC6352 was the standard
 but Honeywell stopped 
 producing them. 
 There are others however but probably more expensive. 
 
 The display could be a nice four digit LED
 (under two inches).
 
 Jon
 
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