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Unread 24-01-2006, 23:22
Justin Stiltner's Avatar
Justin Stiltner Justin Stiltner is offline
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Speed Sensor for Ball Shooter

Does anyone have and idea for a speed sensor for the ball shooting wheels, I don't really want to use encoders, I had an idea of using a frequency to voltage IC and connecting it to the analog port of the R/c as I don't need direction or exact positioning and would rather not go into interrupts. The wheel would have an optical sensor mounted with a disk on the shaft or something similar, however all the frequency to voltage chips I saw wanted about 15 volts in and like 100Hz. The frequency is doable, but theres no way I want 12v battery voltage going into the r/c if something goes wrong. So anyone have an idea?
my priorities
Very little coding
cheap
commonly available
easy to interface

not necessarily in that order.
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Unmanned Systems Lab, Virginia Tech
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