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View Full Version : Optical Switch w/Interrupt mechanism



cnczane
11-10-2004, 09:14 AM
A good while ago, someone asked about using optical sensors for limit switches, and my knee-jerk reaction was "bad idea with so much dust around."

However, I ran across this little assembly at All Electronics:
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=OSU-45&type=store

which could be enclosed in a dust-proof housing (a cardboard box...).

For 75 cents per axis, it might serve?

JavaDog
11-10-2004, 09:51 AM
With the moving part built into the switch, is there really any benefit over a mechanical switch?