Good Day Everyone...

I am building an RC plane (electric powered glider, specifically), and I
plan to at one point have it controlled entirely by a PIC.  I'd have to say
that would be a lot of fun, even if the plane crashes!  But I digress.

First thing I plan to do as far as PIC v/s Plane goes is to make a circuit
to level out the wings in flight.  i.e. if one wing dips, it will
compensate.  I'm not worried about controlling the actuators on the plane or
anything like that (yet) but more about the sensor that is to sit in my
feedback path.  I need a "tilt-o-meter!" .  I'm sure it's not called that!

Anyway, here's where I've started.  Right now I have, through my co-op job,
acquired a Honeywell HMC1001 Single Axis Magnetoresistive sensor.  I figured
at first that it would do the trick perfectly.  Then I found out how much it
costs if I have to replace it.. somewhat less than ideal!!  Regardless, I
have started to give it power and measure outputs, etc., but no matter which
way I tilt it from vertical, the signal changes.  So basically, it will pick
up some change if either wing dips down OR if the plane is climbing or
descending.

I was wondering if there might be an easier way?  I'm very new to the
wonderful world of instrumentation, and every day I'm learning that there
are a billion tricky little sensor floating around out there, and I'm sure
one of them must be perfect for the application.

So if you know which one it is, kindly let me know!! Or if you have any
other ideas/questions/comments/etc regarding the project, please let me
know!

Many thanks,

Wade

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