[PSUBS-MAILIST] compass

[Alan via Personal_Submersibles]

Jon,
I have to buy a compass some time so looked it up but it's pretty expensive
at $188-. I also saw a video on it dated 2010, so it's at least 8 years old.
There are modules for less than $20- but not tilt compensated.
It does say it is "high end" but is there much difference between a cheap
& expensive compass? ( I know nothing about this).
The thought came to mind that you could possibly cover it with resin &
mount it outside the hull away from magnetic interference.
Alan
 

> On 31/10/2018, at 1:36 PM, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Hank,
> 
> I use HMC6343 tilt compensated compass from Honeywell, with arduino or Raspberry pi microprocessor.  Display can be in many formats.  These are sometimes hard to get but looks like CANAKIT has some.
> 
> Compass with Tilt Compensation - HMC6343
> 
> 
> Compass with Tilt Compensation - HMC6343
> Compass with Tilt Compensation - HMC6343
> 
> 
> 
> 
> From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
> To: irox via Personal_Submersibles <personal_submersibles at psubs.org> 
> Sent: Monday, October 29, 2018 10:48 PM
> Subject: Re: [PSUBS-MAILIST] compass
> 
> Ian, 
> Thank you, sorry about the sharp bracket.  I will mount the new one on a plastic pole behind the CT
> Hank
> 
> On Monday, October 29, 2018, 6:43:07 PM MDT, irox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> 
> Hi Hank!
> 
> you could google for "Fluxgate compass" and see what you're comfortable with from an electronics point of view.
> 
> You could build your own for ~$50 ($15 for compass, ~ $10 for microcontroller, ~$20 for a display):
> https://www.adafruit.com/product/1120
> 
> But I imagine you'd prefer something more turn key, like:
> https://www.starmarinedepot.com/clipper-compass-system-w%2Fremovable-fluxgate-sensor.html
> 
> The sensor would need mounted outside, away from the hull, like a regular compass.
> 
> Cheers!
>   Ian.
> P.S.:  Please make it less sharp that the current compass mounting bracket on Gamma. :-)
> 
> -----Original Message----- 
> From: hank pronk via Personal_Submersibles 
> Sent: Oct 29, 2018 5:23 PM 
> To: Personal Submersibles General Discussion 
> Subject: [PSUBS-MAILIST] compass 
> 
> Hi All,
> It is time to deal with a compass for Gamma.  I would like a solid state compass with no moving parts.  Jon, I think you mentioned I could do something for 200 dollars?  Any ideas are welcome.
> Hank
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