[DCRich]

Thank you. What you show makes sense. I note that you import each sensor class separately. Is that intentional or just happenstance?

I agree with your peeve on the demo code. There was a post on the main page about test codes being posted without comments but a demo program without comments is really annoying. I once worked with a mathematician who said he did not put comments in his code because any GOOD programmer should be able to read the code & understand the algorithm.

Danny