Postby kimble01 » Mon Dec 12, 2011 11:02 am
OK, so we bought that and have struggled through their formula: arcsine(Vout-offset/Sensitivity) where Vout is the output, offset is the output at 0 degrees(noon) and Sensitivity 2V/g. I have no idea how to apply or what value 2V/g is since we're not using this as an accelerometer. In another place a less accurate measurement had sensitivity as 35mv. When I plug it in and use real numbers it comes out to Offset being 900 (ratiometric) and using (35*1000) for the sensitivity value...Phew!
I have 2 more problems besides the one stated: the degree of the suns position for a given lat/long and time comes out to 38.5 the output of the sensor is -0.0063143256789 not even related to degrees. The other problem is that it will arrive at this value in both directions from zero, so I can't just tell it to "go to position X" because it could be pointing at the wrong quadrant of the sky...
Any help/thoughts would be appreciated.