VEX Robotics will be closed in observance of the Christmas holiday from Thursday, December 25, 2014 through Thursday, January 1, 2015. Sales or technical support inquiries placed during this period will begin processing Friday, January 2nd, 2015.


For example, a Next-Day Air order placed by 3:00 PM CST on Tuesday, 12/23, will be delivered on Wednesday, 12/24.
This is the last opportunity to ship an order in time for Christmas.


Orders placed after 3:00 PM CST on Tuesday, 12/23/14 will begin processing and shipping out Friday, 1/2/15, to be delivered from then per the selected shipping speed.


We appreciate your understanding and wish all VEX users a happy holiday season.


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VEX Limit Switches

 VEX Limit Switches

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  • Limit Switch on a Robot
  • Packaging

Limit Switch (2-pack)

P/N: 276-2174

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 they are triggered. These switches are great for signaling when a robot arm has reached the top or bottom of its motion.

  • Provide feedback to Microcontroller as events "happen"
  • Bendable sheet metal switch "arm" is very versatile
  • Useful as a trigger in a variety of applications
  • Functionality is pre-programmed in the VEX Microcontroller
$12.99

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Overview

Limit Switch Sensor Signal: The limit switch sensor is a physical switch. It can tell the robot whether the sensor’s metal arm is being pushed down or not.

Switch Type: SPDT microswitch, configured for SPST Normally Open behavior. Behavior: 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.

Technical Specifications

Kit Contents (2) Limit Switch Sensors
Downloads & Docs Documentation
CAD File (STEP)
Compatibility All VEX Microcontrollers.
3-Wire Extension Cables.
Inputs
  • Type:Microswitch
  • Trigger Force:0.38oz typical (varies with location of applied torque on actuator)
  • Actuator Length:2in
Outputs 3-Wire Cable
Connect to a digital input.
  • Black:ground
  • Red:No Connect
  • White:control signal
Function
  • Switch Type:SPST (single pole - single throw)
  • Switch Connection:Wired to normally open (OFF)
Weight
  • Limit Switch Sensor0.03 lbs (13.6 grams)
    • Actual weight of one item (no packaging)
 

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