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Onbot Java Guide Sponsor Thank You Thank You to Our Generous Sponsors for Your Continued Support of the FIRST® Tech Challenge!

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Onbot Java Guide Sponsor Thank You Thank You to Our Generous Sponsors for Your Continued Support of the FIRST® Tech Challenge! 2021-2022 FIRST® Tech Challenge OnBot Java Guide Sponsor Thank You Thank you to our generous sponsors for your continued support of the FIRST® Tech Challenge! Revision History Revision Date Description 1 08/12/2021 Initial Release Contents Contents ............................................................................................................................................................ 3 Introduction ........................................................................................................................................................ 6 What is FIRST® Tech Challenge? ...................................................................................................................... 6 Gracious Professionalism® ................................................................................................................................. 6 1. Introduction to OnBot Java Programming ................................................................................................... 7 2. The FTC Control System ........................................................................................................................... 7 2.1. Introduction .............................................................................................................................................. 7 2.2. Autonomous Vs. Driver Controlled ........................................................................................................... 7 2.3. Point-to-Point Control System .................................................................................................................. 7 2.4. REV Robotics Expansion Hub ................................................................................................................. 8 2.5. REV Robotics Control Hub ...................................................................................................................... 9 2.6. What's an Op Mode? ............................................................................................................................. 10 3. Required Materials ........................................................................................................................................ 11 3.1. Required Materials List .......................................................................................................................... 11 4. Using Your Android Device ........................................................................................................................... 16 4.1. Unlocking Your Screen .......................................................................................................................... 16 4.2. Navigating in Android ............................................................................................................................. 17 5. Displaying Available Apps on your Android Phone ........................................................................................ 19 5.1. Android Marshmallow Users .................................................................................................................. 19 5.2. Android Nougat Users ........................................................................................................................... 20 6. Configuring Your Android Devices ................................................................................................................ 21 6.1. What Needs to Be Configured for My Control System? ......................................................................... 21 6.1.1. Control Hub Users .......................................................................................................................... 21 6.1.2. Users with Two Android Smartphones ............................................................................................ 21 6.2. Renaming Your Smartphones ................................................................................................................ 22 6.3. Installing the FTC Apps ......................................................................................................................... 27 6.4. Placing Phones into Airplane Mode with Wi-Fi On ................................................................................. 35 7. Pairing the Driver Station to the Robot Controller.................................................................................... ….. 36 7.1. Control Hub Users ................................................................................................................................. 36 7.2. Users with Two Android Smartphones ................................................................................................... 43 8. Connecting Devices to a Control or Expansion Hub ...................................................................................... 43 8.1. Connecting 12V Power to the Hub ......................................................................................................... 43 8.2. Connecting a Motor to the Hub .............................................................................................................. 46 8.3. Connecting a Servo to the Hub .............................................................................................................. 48 9. Connecting a Color-Distance Sensor to the Hub ........................................................................................... 49 9.1. Connecting a Color-Distance Sensor to the Hub .................................................................................... 50 10. Connecting a Touch Sensor to the Hub ..................................................................................................... 51 10.1. Connecting a Touch Sensor to the Hub .............................................................................................. 51 11. Configuring Your Hardware ....................................................................................................................... 53 11.1. Before You Begin... ............................................................................................................................ 53 11.2. Connecting an Android Smartphone to an Expansion Hub ................................................................. 53 11.3. Getting the Control Hub Ready .......................................................................................................... 55 11.4. Creating a Configuration File Using the Driver Station........................................................................ 55 11.5. Configuring a DC Motor ...................................................................................................................... 59 11.6. Configuring a Servo ........................................................................................................................... 61 11.7. Configuring a Color Distance Sensor ................................................................................................. 64 11.8. Configuring a Digital Touch Sensor .................................................................................................... 67 11.9. Saving the Configuration Information ................................................................................................. 68 12. Installing a Javascript Enabled Browser .................................................................................................... 71 12.1. Installing a Javascript-Enabled Browser ............................................................................................. 71 13. Connecting a Laptop to the Program & Manage Network .......................................................................... 73 13.1. Introduction ........................................................................................................................................ 73 13.2. Connecting Your Laptop to the Program & Manage Network ............................................................. 73 13.3. Troubleshooting Your Wireless Connection ........................................................................................ 78 14. Creating and Running an Op Mode (OnBot Java) ..................................................................................... 78 14.1. The Java Programming Language ..................................................................................................... 78 14.2. What's an Op Mode? .......................................................................................................................... 79 14.3. The FTC OnBot Java Programming Tool ........................................................................................... 79 14.4. Creating Your First Op Mode.............................................................................................................. 80 14.4.1. Examining the Structure of Your Op Mode .................................................................................. 85 14.5. Building Your Op Mode ...................................................................................................................... 88 14.6. Troubleshooting Build Messages ....................................................................................................... 89 14.7. Running Your Op Mode ...................................................................................................................... 90 14.8. Modifying Your Op Mode to Control a Motor .....................................................................................
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