Is there a device which I can plug into an arduino that I can use to direction information down to 0.1 of a degree?
Thanks
Jim
0.1 degree is very very accurate
There exists digital compasses that have precision to 1 degree.
You might average a number of samples to get higher accuracy, but I never tried if that was reliable
What is the goal you want to accomplish?
What about this? 14 bit resolution so should surpass your needs assuming it's noise output is not to bad. They also do 12 bit versions but that's getting close to your limits so may be unsuitable.
Merlin shows you how to build a fast (10 Hz), high-resolution (0.1 degree) compass here: Sailboat Instruments: Hi-Resolution Custom Compass
Thanks for the info guys,
I'm trying to create a pair of devices to make sure that a pair of wall are parallel to each other, or to measure in .1 degrees how far out they are of aliment. I was thinking of using a pair of arduino's and have one send a value to the other to be displayed on an LCD display pannel