VEX-276-2156 VEX Robotics Optical Shaft Encoder Kit <p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">With the Quadrature Encoder's two output channels you can measure both the position and direction of rotation of a VEX shaft. This will allow you to calculate the speed of the shaft, as well as the distance it has traveled; these are very useful measurements for autonomous programming. You can measure with greater precision than IR or ultrasonic sensors.

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<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">This encoder attaches to your drive motor output shaft and measures every movement so that you can effectively "measure" a distance traveled, and allow for a lot of functionality with autonomous functions. Measures with greater precision than IR or ultrasonic sensors.
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<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">A Programming Kit is needed to change the program in the Vex Controller.</font></p>
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<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Technical Info</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Sensor Type</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Infrared light sensor and infrared LED</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Resolution</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">90 pulses per revolution</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Size</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">2-5/8 x 2in.</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Weight</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">0.08 lbs. per sensor</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Shaft Size</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">1/8 inch square</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Wiring</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Black - ground; Red - (+5V) power; White - control signal</font></td>
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<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">List of Contents</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">2</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Optical Shaft Quadrature Encoder</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">4</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">8-32 3/8in. Screw</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">4</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Keps nuts</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">1</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Inventor's Guide insert</font></td>
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