Hi All,
I have a sine/cosine encoder designed for monitoring the rotation in degrees of a telescope.
I've looked at the output with an o-scope and it produces 36 sinusoidal cycles per one full revolution.
In order for me to read it with resolution down to a degree, I'll have to divide each full cycle into 10 phases.

I understand there is a possibility I can simply read it with two A/D channels and use some kind of trig formula to derive movement and direction.

Does anyone have experience with this - who could help with the math I would need?
Or perhaps there is example code somewhere - someone could point me too?

Sincere thanks in advance!!
dw