Hi,
I can't get the full datasheet to download, but the way that I read the (Digikey) specification is that it has "endstops" at 10 degrees and 360 degrees, so would be useless in a wind vane. I believe the "Continuous" refers to the "infinite" (analogue) resolution between those endstops, i.e. dependent on the resolution of the (external) ADC, or ultimately the noise level of any of the electronic components in the system. Not in the way the term is used in model makers' "continuous rotation servos".
Of course it is possible to make (or buy) a sensor which measures the (signed) X and Y (i.e. Easting and Northing) magnetic field strengths from a strong rotating "bar" magnet and calculates a direction (see the "ATAN2" function), but I suspect that calibration (in the influence of the Earth's magnetic field) may be an issue. There are lots of different approaches to measuring the wind direction, which rather suggests that there is no easy or perfect solution.
Cheers, Alan.
I can't get the full datasheet to download, but the way that I read the (Digikey) specification is that it has "endstops" at 10 degrees and 360 degrees, so would be useless in a wind vane. I believe the "Continuous" refers to the "infinite" (analogue) resolution between those endstops, i.e. dependent on the resolution of the (external) ADC, or ultimately the noise level of any of the electronic components in the system. Not in the way the term is used in model makers' "continuous rotation servos".
Of course it is possible to make (or buy) a sensor which measures the (signed) X and Y (i.e. Easting and Northing) magnetic field strengths from a strong rotating "bar" magnet and calculates a direction (see the "ATAN2" function), but I suspect that calibration (in the influence of the Earth's magnetic field) may be an issue. There are lots of different approaches to measuring the wind direction, which rather suggests that there is no easy or perfect solution.
Cheers, Alan.