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Topic: Tilt only sensor for telescope. (Read 2798 times) previous topic - next topic

willnue

FYI - One of the links I posted previously had examples on how to read the mouse scroll wheel with an Arduino.

For something similar to the solution you described with the organ pedal you could look into a photo interrupter. The typical example would be to identify coins passing through a slot. I have used these before to detect passing objects, but I don't know if they would work with a partial obstruction etc... You could however use a few of them at key angles on the shaft.

They do come in several sizes, widths etc... but the easiest one to find on the web is the Sharp GP1A57HRJ00F
http://www.sharpsma.com/optoelectronics/photointerrupters/GP1A57HRJ00F

Should only be a few bucks apiece.

willnue

Bergie

Thanks. I have some of these lying around somewhere. Lots of usefull stuff in old DVD players! I'm more inclined to use an LED - LDR combination and then the analogue read routine. I'm way too much of a noob to actually write my own code, so unless I copy and modify, I'm lost in any case.

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