Revision as of 08:53, 24 March 2023

Why Use Abstraction

• Makes the program easier to think about
• Makes is easier to test programs - we can test small part individually
• Makes the code easier to user over and over saving time. We can more easily takes code from one program and use it somewhere else.
• Makes code more reliable by allowing us to use the same code over and over.

Move the Robot in a Square Demo Code

• DriveInASquareEpp.java

Check Points

1. Copy the Drive In A Square program to your robot and test it.
2. Investigate a simplified outline of the move in a square program to help you understand how to write methods. See FTC Drive In a Square Outline 20230112.
3. Modify the program to move forward 18 inches, turn left 90 degrees, and move backward 12 inches.
4. Modify the program to work with 4 motors so you can support the Mecanum drivetrain.

Refined Demo Code

TBD: Complete code refinements and integrate into this lab.

• DriveMecanumEpp.java

Simplified PowerUpMotors to us Ticks for distance and velocity. Add GoForward and GoSideways helper methods

Using the Android Debugging Bridge to Locate Bugs

• FTC adb Android Debugging Bridge 202008: My notes
• DriveInASquareEppLog.java: The Drive in a Square program with debugging capabilities added.
• FTC Starting up the Debugger Summary 20230308
• DriveInASquareEppLog.txt: Example subset of log file

Additional References

To be screened.

• Google Reference
• FIRST Troubleshooting reference - See chapter 15, page 72
• Adb Commands