0-276-2174 VEX Robotics Limit Switch Kit <p> <font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Get
even more creative with your robots by limiting action in programmed
behavior. Kit includes a pair of simple limit switch sensors custom built for the VEX Robotics Design System. Switches send a signal to the Microcontroller when that are triggered. These switches are great for signaling when a robot arm has reached the top or bottom of it's motion. A Programming Kit is needed to change the program in the
Vex Controller. </font></p>
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">When the limit switch is not being pushed in, the sensor maintains a digital HIGH signal on its sensor port. This High signal is coming from the Microcontroller. When an external force (like a collision or being pressed up against a wall) pushes the switch in, it changes its signal to a digital LOW until the limit switch is released. An unpressed switch is indistinguishable from an open port.</font></p>
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Provide feedback to Microcontroller as events "happen"<br />
Bendable sheet metal switch "arm" is very versatile<br />
Useful as a trigger in a variety of applications<br />
Functionality is pre-programmed in the VEX Microcontroller</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">Switch Type </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">SPDT</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Switch Connection </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Wired to normally open </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Acuator Length </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Length 2.0 in. total </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Unit Dimensions </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">1.26 x 1.21 x 0.5 in. </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">0.03 lbs. per switch </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 - NC (no connect); 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">Limit Switch Sensors </font></td>
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