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Testbed - B u mper S w itch

Testbed - B u mper S w itch. Learn about your Bumper Switch with the Testbed!. Discover new hands-on builds and programming opportunities to further your understanding of a subject matter. The Completed Look of the Build. Testbed.

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Testbed - B u mper S w itch

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  1. Testbed-BumperSwitch Learn about your Bumper Switch with theTestbed!

  2. Discover new hands-on builds and programming opportunities to further your understanding of a subjectmatter.

  3. The Completed Look of the Build Testbed The Testbed build will be used for investigating your SmartDevices.

  4. Build Instructions

  5. Build InstructionTips • Steps 1–36: The blue box at the top of the step shows important information for the build. The number above the image of a part is the number of that part required in the step. There may be dimension information below the part to help identify which size touse. • Step 1: Count all pieces before starting your build, including sensors andmotors. • Step 4: Flip the build over after Step 3 to add the blue connector pins asshown. • Step 15: Flip the build over after Step 14 before adding the sensor as shown in thisstep. • Steps 21–26: These steps show you how to put together a single motor sensor group. You will build 4 of these intotal.

  6. BumperSwitch228-2677 Description This sensor acts as a switch. It tells the robot whether its bumper is pressed (sensor valueof 1) or released (sensor value of0). • Bumper Switch228-2677 • CommonUses: • This sensor can trigger a robot action when pressed orreleased. • This sensor can be used as a toggle to turn on or off motors whenpressed. • This sensor can detect walls or objects when the bumper runs intothem. • The sensor can detect other parts of the robot, such as an arm, when it presses in the bumper.

  7. Exploration • Now that you've finished the build and read about the function of the Bumper Switch, consider the Bumper Switchfurther. • How do you think the Bumper Switch works to detect whether it is pressed in ornot? • How could a Bumper Switch be used to improve a robot's design? • In your opinion, where would be the best places to position Bumper Switches on a robot?

  8. Test your build, observe how it functions, and fuel your logic and reasoning skills through imaginative, creativeplay.

  9. How it Works: Bumper Switch A switch is a simple electricalcomponent The Science of the BumperSwitch The VEX IQ Bumper Switch is based on probably the most commonly used electrical device: the switch. A switch consists of two terminals (places to attach a wire) and a wire bridge to 'make' the connection when the switch is pressed. As in the illustration, when you press on the connecting wire, you 'complete' the circuit, and the Robot Brain registers that in your program! Basically the Bumper Switch is a part of a circuit which is unconnected, or broken. When you press the Bumper Switch, the connection is made, and electicity is allowed toflow.

  10. Bumper Switch Investigation Hardware/SoftwareRequired: 1. Preparing for theInvestigation VEXosUtility Before beginning the investigation, use the Smart Device Check-up to ensure you have the latest firmware and that your devices are functioning properly. You can leave everything connected to the Testbed as is when updating yourfirmware.

  11. Running theProgram Download and run the program found in the Hardware/Software requirements table above to your VEX IQ Robot Brain using ROBOTC orModkit. Investigating the Bumper Switches LCD with Testbed - Bumper Switch programrunning • Look at the LCD on your Robot Brain while the program is running. The program is displaying two pieces of data for each Bumper Switch on your TestbedBuild. • While paying close attention to theLCD: • Press each Bumper Switch multipletimes. • Are you able to determine what the data on the LCD screen represents? Record your results in your engineeringnotebook.

  12. 4. Determining theDifference Bumper Switch and Smart Motor on theTestbed • The Bumper Switches are programmed to turn on a Smart Motor, however each is programmed slightlydifferently. • While paying close attention to the LCD and the SmartMotors: • Press each Bumper Switch multipletimes. • Are you able to determine the difference in how each are programmed? Record your results in your engineeringnotebook.

  13. Become a 21st century problem solver by applying the core skills and concepts you learned to other problems.

  14. Bumper Switches in the World An emergency stop button at alaboratory • Touch Sensors • The VEX IQ Bumper Switch is a type of touch sensor. Touch sensors are integrated in many pieces of technology, often in the form of a button. Touch sensors are one way that people are able to control the behavior of technology. • Some examples of technology that include touch sensors: Smartphones andtablets • Appliances • Remotecontrols • Labratoryequipment • All types ofvehicles

  15. The Value of a Testbed Electronics inspected at atestbed • Testing... One, Two,Three • A testbed is a tool used for simple and repeatable testing of ideas and technology. Testbeds may be comprised of software, hardware, orboth. • Testbeds are used in many different professional fields, and take on many differentforms. • In electronics companies, testbeds can be used to inspect the behavior of new or faulty circuits. • In the automotive industry, "development mules" are used to check the performance and reliability of a new car component in a standard testbedvehicle. • Engine manufacturers use machines called "environmental test chambers" to test how their engines perform over long periods of time, under intense heat and environmental factors.

  16. UsingBumperSwitchesin Robotics Competitions A competition robot utilizing multiple BumperSwitches • Touchdown! • The VEX IQ Bumper Switch senses if it is currently pressed or released, and it provides that information to the Robot Brain. This information can be extremely useful when it comes to roboticscompetitions. • The Bumper Switch is helpful for several robot applications. • While in autonomous mode, a Bumper Switch can be used so that your robot will wait to carry out a certain action until it is pressed by some sort ofobject. • The Bumper Switch can detect when it comes into contact with a surface such as a perimeter wall, or an object, such as a gamepiece.

  17. You can use a Bumper Switch to have your robot detect when one part of it, such as its arm, comes into contact with another part of it, such as itschassis.

  18. Is there a more efficient way to come to the same conclusion? Take what you’ve learned and try to improveit.

  19. ImproveandTinkerwithYour Build • Answer the following questions in your engineering notebook as you tinker with thebuild. • Where else could you move the Bumper Switch to on the Testbed? Would it be mounted in the same way? Would it need to change places with another sensor? Explain with sketches and details how you would like to see the Bumper Switch included in thebuild. • Imagine you need to explain to a partner how to make the change. Explain the steps involved in changing the Bumper Switch's position by using a detailed procedure with sketches. • Does your plan for moving the Bumper Switch improve how well it works, or does it improve the user's experience with the Testbed? Or, does it do both? Explain how the new location of the Bumper Switch is an improvement.

  20. Understand the core concepts and how to apply them to differentsituations. This review process will fuel motivation tolearn.

  21. Review • True or False : A Testbed is a great way to repeat testing of ideas and technology. • True • False • Bumper Switches are used in which of the followingobjects: • Buttons • Remotecontrols • Vehicles • All the Above • What information is sent to the Robot Brain from a BumperSwitch? • If it ispressed • If it isreleased • All the Above • None of theAbove • You can use a Bumper Switch on a robotto... • Detect when the robot has come into contact with anotherobject • Detect the height of the robot • Detect what color a nearby object is • Detect how far away an objectis

  22. Additional information, resources, andmaterials.

  23. RemovingConnectorsfrom Beams and Plates Using a pitch shaft to remove a cornerconnector How to Easily RemoveConnectors You can easily remove corner connectors from beams or plates by placing a metal shaft through one of the holes of the corner connector and pulling outward while holding down the beam orplate.

  24. RemovingPinsfromVEXIQ Electronics Removing a 1x1 Connector Pin from a SmartMotor How to Remove Pins that are Stuck in Electronic Components Connector pins can be removed more easily from Smart Motors, sensors, or Robot Brains by using a 1x1 Beam. Push the beam onto the pin and then twist the beam while pulling outward to remove the pin.

  25. RemovingPinsfromVEXIQ Beams and Plates Removing a pin from a plate assembly using abeam How to Easily Remove Pins from Beams andPlates You can quickly remove connector pins from beams or plates by pressing a beam against the back of the pin, which partially pushes the pin out, so you can remove it with your fingers. You can use this technique to more easily remove pins from individual plates and beams, or from builtstructures.

  26. Installing Rubber Shaft Collars Using your hand to warm a Rubber ShaftCollar Rubber Softens as it getsWarm Hold the Rubber Shaft Collars in your hand for 15-30 seconds before you slide them onto a shaft. Holding the Rubber Shaft Collar in your hand will warm and soften the rubber to make it easier to slide onto a shaft.

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