available at: 5.1 program functions for vex robots program functions for vex robots

Available at: www.etcurr.com Lesson 5.1 – Program Functions for VEX Robots

Program Functions for VEX Robots


Program Functions for VEX Robots

Performance Objective: Using a bumper switch, line follower, and potentiometer, program functions to allow a robot to follow a line, touch a wall, raise a crane and then terminate.

Enabling Objectives: describe the purpose and benefits of a function match associated terms that define and describe functions describe why functions are used functions create code that develops a function draw a flow chart for using a bumper switch, line follower,

and potentiometer


Functions

A function is a portion of code within a larger program that performs a specific task and is relatively independent of the remaining code?


Functions

Functions allow you to reuse code rather than retyping a group of commands

Functions allow you to group a series of steps under one name.


Creating Functions

Navigate to the menu item project and select Add New Function from the drop down menu.


Creating Functions A dialog box will appear which

allows configuration of the function. This dialog box will allow us to name the function.

Type line follower for the functions name and Select OK.

Your done, you have create your first function. Now all you have to do is call the function.


Creating Functions Select the (tab/function) you

just created, titled linefollow. Now enter the code that allows the line follower to operate.

To the right is an example of code to operate the line follow sensor. If you

need assistance, please refer to lesson 3.6


Calling Functions Since our function now has code inside, we are ready to call

the function from the autonomous mode/function tab. Drag the function object into the path between variables

and End and a dialog box will appear asking you configuration settings. Click OK and you have called a function


Function Logic Drawing a flow chart only requires a slight

modification to what we have learned so far.


Function Logic If you notice on the right, we have a normal flow chart

but notice where the function is being called drive forward. To the left is the function/mode autonomous where we call the function


Try it out

Using a bumper switch, line follower, and potentiometer, program functions to allow a robot to follow a line, touch a wall, raise a crane and then terminate

available at: 5.1 program functions for vex robots program functions for vex robots

Documents