- Description
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Details
- Bumper Switch Sensor: The bumper sensor is a physical switch. It tells the robot whether the bumper on the front of the sensor is being pushed in or not.
- Benefits:The bumper switch can help the robot avoid dangerous collision automatically.
- Switch Info: SPST switch (“Single Pole, Single Throw”) configured for Normally Open behavior.
- Switch Connection: Wired to normally open (OFF)
- Signal Behavior: When the 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 switch is released. An unpressed switch is indistinguishable from an open port.
- Range Limits: Forces less than a pound can trigger the bumper switch (5.06 oz typical).
The bumper switch can allow a robot to navigate autonomously by avoiding hard collisions, such as hitting a wall. For example, a robot can be programmed to briefly freeze when the bumper switch is activated, and then reorient itself so that it is no longer driving towards the obstacle. Figure 2 shows where the bumper switch would be placed to be the first part of the robot to make contact with a wall or an obstacle.
Figure 2. (a) Bumper switch placement; (b) Placement close-up
- Kit Contents
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- (2) Bumper Switches
- Inputs
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- Type: Momentary
- Outputs
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3-Wire Cable
- Black: Ground
- Red: No Connect
- White: Control signal
- Weight
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- 0.042 lbs (19.05 grams)
- Compatibility
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- Compatible with all VEX Microcontrollers and 3-Wire Extension Cable
- CAD Files
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VEX and VEX Robotics are trademarks or service marks of Innovation First International, Inc.
Copyright © 2002-2019. All Rights Reserved. VEX Robotics, Inc. is a subsidiary of Innovation First International, Inc.
All other product names/marks of others are the property of their respective owners. Privacy Policy
Patents and/or Patents Pending: innovationfirst.com/patents
Copyright © 2002-2019. All Rights Reserved. VEX Robotics, Inc. is a subsidiary of Innovation First International, Inc.
All other product names/marks of others are the property of their respective owners. Privacy Policy
Patents and/or Patents Pending: innovationfirst.com/patents
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