[amsat-bb] Re: Non-mechanical Azimuth/Elevation Feedback Advice

[Zach Leffke]

All,

                Thanks to everyone that has responded both on and off list.
For my first attempt at finding a non-mechanical solution I plan to use the
MEMS accelerometer (for El) and magnetometer (for Az) solution.  When still
exploring the Potentiometer solution, because of space requirements and
other factors I was pricing out multi turn potentiometers.  For the gearing
ratios I needed, I required about a 5 turn potentiometer, which at least
according to digikey and the quick search I did, priced to about $20.00
apiece.  The MEMS Magnetometer (HMC5883L) and Accelerometer (MMA8452Q) each
price out to less than $20.00 each on sparkfun, so I'll actually be saving a
few bucks.

 

That's the plan, at least for the first iteration.  We'll see how it goes!

 

Thanks again to everyone!

 

Go Team AMSAT!

 

-Zach, KJ4QLP