C-Handout 6 – Assignment

 

Pre-lab Assignment for Thursday 10/12

This is to be handed in at the beginning of Lab on the 12^th.

(10/10/00 Page 4)

 

Name:___________________________________________

 

 

Write a program that moves the robot around the floor.

• Make sure your program is well commented so it can be understood by the grader.
• If neither bumper switch is closed, go straight ahead.
• If a bumper switch closes, back up and steer away from the side that was hit.
• If both bumpers are closed, back up and turn away from the obstacle (the turn should be more extreme than the previous case).
• Make sure your program is well commented so it can be understood by the grader.

 

 

Fill in the outline on the other side of this page.

• Make sure your program is well commented so it can be understood by the grader.
• You will turn in your program at the beginning of lab.
• Make a copy of your program before lab, so you will have it during lab.  You will be implementing, and debugging, a similar program during lab.
• I don’t expect a perfect program, but I want to make sure you have thoroughly though out all the issues and difficulties before coming to lab.
• There are many ways to write this program, and no single correct answer.  Be original – just make sure your code is clear and well commented.
• Use at least one function besides “main()”.  The function can do anything: back up, turn away from an obstacle, read the bumpers, go forward…
• Assume the left bumper is connected to digital(7), the right bumper to digital(8).  The function “digital()” returns a 0 (FALSE) if the bumper is depressed, and a 1 (TRUE) if it is not.
• You may work in groups, but make sure that everybody in the group is participating.  If you know more C than others in your group, you should make sure everybody else understands what is going on, and that you are not simply dictating to the others in the group.  If you know less C than the others in your group, make sure that you ask questions if you don’t understand something.
• Use extra pages if necessary.

 

 

 

 

Make sure your program is well commented so it can be understood by the grader.

/*Global variable declarations (if any) and functions go here*/ (

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

void main() {

/*Variable declarations go here*/

 

      ao();             /*Turn all motors off*/

      printf(“\nPress Start to begin.”);

      start_press();          /*Wait for start button*/

 

      /*Initialization code goes here (if any)*/

 

 

 

 

 

 

      while (1) {             /*Repeat these lines (to closing brace, }) forever*/

           

            /*The main body of your program goes here*/

 

 

 

 

 

 

 

 

 

 

 

 

      }

}