 | | Re: (long) Rotation Sensor from "Extreme Creatures" Fiber Optics —Karim Nassar
| | | | (...) You could make a paper disc that has a radial pattern of 3 repeating colors that the light sensor can distinguish... for example: red, blue, white, red, blue, white... Then by watching the pattern of colors that go by the light sensor, the (...) (26 years ago, 29-Dec-98, to lugnet.robotics)
| | | | | | | | | | Re: (long) Rotation Sensor from "Extreme Creatures" Fiber Optics —Ron Beck
| | | | | (...) Nice idea, Karim. The gradient idea keeps it down to one sensor. If you are willing to use two sensors, then the usual method is to add a second photo sensor out of phase by half a slot. You interrupt when the first sensor goes low (or high). (...) (26 years ago, 2-Jan-99, to lugnet.robotics)
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