[aprssig] Android HUD Development

[Rud Merriam]

The results are about what I would have expected. The author could have 
found the sensor rates from my blog (LOL): 
http://blog.mysticlakesoftware.com/2009/07/sensor-accelerometer-magnetics.html.

- 73 -
*Rud Merriam K5RUD
Emergency Coordinator
/Montgomery County ARES® <http://www.wa5eoc.org/> /
* /Mystic Lake Software <http://mysticlakesoftware.com/>
/

On 6/10/2011 1:51 PM, Jan L. Peterson wrote:
> On 06/10/2011 12:30 PM, Rud Merriam wrote:
>> I think timing would be a challenge with the magnetometer. My game
>> Galactic Patrol: Zap GPS uses the compass and gravity sensors. You
>> position the phone to shoot down GPS satellites. The sensors don't
>> respond all that quickly on my G1 phone and the response is pretty
>> sloppy and dependent on what else is running on the phone. They are
>> useful for their purpose but transferring signals isn't one of those
>> purposes.
> I think Scott was talking about this:
> http://jdesbonnet.blogspot.com/2011/05/arduino-to-android-io-on-cheap-aka-poor.html
>
> Reading the fine article reveals that the guy was able to get about
> 7bps... *bits* per second.  Pretty low baud rate.  How long is the
> typical APRS message?  A quick glance at aprs.fi shows at least one
> message from MB7UIK that is 131 characters long.  That's about 19
> seconds to transfer over the magnetometer.
>
> Still, kind of cool.
>
> 	-jan-
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