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=Team Name:= The Kat-like Mangos from Devon Town =Team Symbol:= =I. Team Members Names (First Only)= Kat, Austin and Devon (Team members should rotate between building, programming, testing, and working on the wiki. Each member should contribute to the wiki on their OWN computer.)

=II. Instructions for Challenges=

A. For each challenge you must write a short description of the challenge using complete sentences. Please write in 3rd person, scientific writing. B. This is where you should include your programming code by including screen screen shots. You should place all multimedia on [|photobucket.com] and then incorporate it into the site using the embed code. C. For each challenge you must provide some form of multimedia exhibit. This would be images, a short video, an interview, etc. You should place all multimedia on [|photobucket.com] and then incorporate it into the site using the embed code. D. For each challenge you should provide a written explanation of the difficulties encountered with the challenge. = = = = =III. Challenges (Template)=

Copy this section for each of your challenges:

DATE: 4/20/2009
Title of Challenge: Point Turn

A. Description (Short Paragraph): The robot had to first travel 25 cm forward. Next, the robot had to make a point turn 180 degrees to the left. Then, the robot had to travel backwards 10 cm into a stop.

B. Programming Code (Picture and Written Explanation):

//Image 1. The programming code for the robot traveling 25cm.//

This piece of programming code represents the first block above. This block makes the robot travel 25 cm forward.

//Image 2. The programming code for the robot pen point turning 180 degrees to the left.//

This piece of programming code represents the second block above. This block makes the robot point turn 180 degrees to the left.

//Image 3. The programming code for the robot traveling 10cm backwards into a stop.//

This piece of programming code represents the third block above. This block makes the robot travel 10 cm backwards.

C. Multimedia:

media type="custom" key="3692753" //Video 1. The robot in the Point Turn Challenge.//

D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph): The circumference of the wheel was measured in order for the robot to travel a certain distance. The circumference of the wheel is 18cm, so the distance the robot needs to travel is divided by 18. The robot needed to travel 25 cm, so 25/18 = 1.4. But, 1.4 was just a bit too little, so the robot was set to 1.5 rotations instead. The robot was set to travel 1.5 rotations in order to travel 25cm into a stop. Next, the robot needed to make a pen point turn 180 degrees to the left. The robot was set for 1 rotation at the highest speed. Also, the robot was set for 180 degrees turning in the steering controls. This made the robot pen point turn 180 degrees to the left, and then stop. Next, the robot needed to travel 10cm backwards into a stop. The robot needed to travel 10 cm, so 10/18 = 0.6. The robot was set for 0.6 rotations, but in a backwards direction. These programming directions made the robot successfully complete the Point Turn Challenge.

DATE: 4/20/2009
Title of Challenge: Square

A. Description (Short Paragraph): The robot had to follow the square drawn on the floor at the front of the room. The robot had to travel the distance of one side, then make a 90 degrees turn and travel the distance of the next side. This was done on all four sides of the square. The robot had to stay on the tape at all times.

B. Programming Code (Picture and Written Explanation): //Image 1. Programming Code for the Square Challenge.//

The first block makes the robot travel 61cm, which is equal to one side of the square. Then, the second block makes the robot make a 90 degrees point turn. These two blocks are repeated three times in a row, so that the robot travels around the square. But, the first block is repeated an extra time, a fourth time, at the end. This is because the robot stops once it travels the last side of the square, so it doesn’t have to make an extra turn.

C. Multimedia:

media type="custom" key="3692749"

//Video 1. An interview about the Square Challenge.//

//Image 1. The track for the square challenge.//

D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph):

First, the distances across the square were measured. Next, the circumference of the wheel was measured in order for the robot to travel the certain distance. The circumference of the wheel is 18cm, so the distance the robot needs to travel is divided by 18. 61 cm is the distance of each side of the square that the robot has to travel. The robot needed to travel 61 cm, so 61/18 = 3.4. The robot was set to travel 3.4 rotations in order to travel the 61cm of each side of the square. Next, the robot needed to make a pen point turn 90 degrees to the left. The robot was set for 1 rotation at the highest speed. Also, the robot was set for a 90 degrees turning in the steering controls. This made the robot pen point turn 90 degrees to the left, and then continue with the next 61cm side. These programming directions made the robot successfully complete the Square Challenge.

DATE: 4/22/2009
Title of Challenge: Backing Up

A. Description (Short Paragraph): The robot has to follow the path drawn on the floor at the front of the room. The robot has to go forward, then make a 90 degrees right hand turn. Next, the robot has to back up into a "bay" while making noise.

B. Programming Code (Picture and Written Explanation):

//Image 1. Programming Code for the Backing Up Challenge.//

This programming code is how the robot knew what to do. The first "block" tells the robot to go straight for 3.2 rotations. The next two blocks construct the bank turn with a total motion time of 1.3 rotations. The next block tells the robot to go straight for 0.5 rotations to finish up the last portion of the forward part of the course. The bright green block with the picture of the speaker on it tells the robot to say "Education" while it is backing up. The last block tells the robot to back up for 2.6 rotations.

C. Multimedia:

media type="custom" key="3698165" //Video 1. The robot completing the backing up challenge.

// //Image 1. Programming the robot on Lego Mindstorms.//

D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph): Some of the difficulties that were encountered where that the robot wouldn't turn enough to reach the end of the banked turn. Also it was hard to figure out how to get the audio to work as the robot was backing up. The way that the challenge was solved was that first the robot went straight for 3.2 rotations and then banked to the right for 1.3 rotations. Then the robot went straight for 0.5 rotations and then backed up for 2.6 rotaions while saying "education" from its speakers. This is how the challenge was solved.


 * Correction to this portion was made by Devon, but he corrected it using Austin's account.

DATE: 4/27/2009
Title of Challenge: Obstacle Course

A. Description (Short Paragraph): Tape was used to create a customized obstacle course. The obstacle course has at least three different types of turns. The sound sensor begins the course by a clapping noise. The light sensor ends the course by making the robot stop at the black line.

B. Programming Code (Picture and Written Explanation): media type="custom" key="3761223" //Image 1: Part one of the programming code.// media type="custom" key="3761229" //Image 2: Part two of the programming code.//

In the programming code, the robot started by detecting a clapping noise using a sound sensor. The robot had to first travel forwards, then make a 90 degrees turn to the left. After this, the robot went forwards straight and then made a left hand bank turn. After this, the robot turned 90 degrees to the left, and then backed up to a stop. The robot then made a 90 degrees turn to the right, and traveled forward. Lastly, the robot made a gradual turn to the right into a stop. The robot ended by sensing a book bag at the end of the course with an ultrasonic sensor.

C. Multimedia: //Image 1. Re-building parts of the robot for the obstacle course challenge.//

//Image 2. The sound sensor connected to the robot.//



//Image 3. The obstacle course.//

//Image 4. A drawing of the obstacle course.//

//Image 5. The ultrasonic senor and the sound sensor connected to the robot.//

media type="custom" key="3754635" //Video 1. A failed trial for the Obstacle Course challenge.

media type="custom" key="3754581" Video 2. The robot completing the Obstacle Course challenge.//

media type="custom" key="3761443" //Video 3. Interview about the challange.//

media type="custom" key="3761521" //Video 4. Interview bloopers.//

D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph):

The first thing that was done to make the robot complete the obstacle course was to make it wait until a clap was heard and then start going forward 3.4 rotations. Then the robot would make a 90 degree left turn to the left and then go straight for 2.4 rotations. After that the robot would made a bank turn in 2.5 rotations and then go straight 0.5 rotations. Then the robot will make a 90 degree point turn to the left and then back up 3.5 rotations. Then the next command was a 90 degree point turn to the right and then go straight 2.9 rotations. Lastly the robot made a right banked turn in 1.7 rotations and then stopped when it sensed the black backpack.

Photobucket Account: KatMangoandDevin