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=Team Name:= Lil' Robo =Team Symbol:= 

[|www.techfresh.net]

=I. Team Members Names (First Only)= (Team members should rotate between building, programming, testing, and working on the wiki. Each member should contribute to the wiki on their OWN computer.) Khadija, Jason, and Rebecca

=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/?/2009
Title of Challenge: A. Description (Short Paragraph): B. Programming Code (Picture and Written Explanation): C. Multimedia: D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph):

DATE: 4/22/2009
Title of Challenge: A. Description (Short Paragraph): In this challenge the robot was programed to move 25 cm forward, point turn to the left (180 degrees), and back up 10 cm. B. Programming Code (Picture and Written Explanation):

//Logo Mindstorms Program Computer Screenshot.// Image 1: Code for Robot In this code the robot was precisely told to follow the directions above. To do this, three boxes were inserted into a code. These boxes are movement boxes. The first box’s command is to move 25 centimeters. The second box’s command was to turn left a full 180 degrees. Then finally the last box commanded the robot to back up 10 centimeters. C. Multimedia:Difficulties Encountered/How You SOLVED the Challenge! (Paragraph): media type="custom" key="3687289" //Challenge #1 Robo Media// Video 1: Robot Moves According to the Code The challenge was solved by making sure that the robots commands were precise. Some of the difficulties that the group had were getting the robot to go the required distance. Though the tile squares on floor helped, the group still didn’t really have accurate measurements. To solve this problem the group used the used the ‘guess and check’ method. The method this group used was to measure the wheels which came out to be 18cm, and then the group would divide 18 by the distance required to give them a good estimate to what numbers/coordinates to put into the robot. Finally after a few experiments the robot was following to directions for challenge one. A suggestion to avoid this problem would be to make sure that the group is strictly following the directions given and having more accurate measurements. By following the tape measure, we could have completed the challenge earlier.

DATE: 4/24/2009
Title of Challenge: A. Description (Short Paragraph): In this challenge the robot was told to go around the perimeter of a square. The robot was to turn left each time until it came back to the starting point.

B. Programming Code (Picture and Written Explanation): Computer Code for Challenge #2 C. Multimedia: media type="custom" key="3698469" //Challenge #2 Multimedia Video 2// //Challenge #2 Pictures 2 & 3// D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph): The difficulties encountered in this challenge was that the robot would not turn enough and or the robot was not going the correct distance. Another difficulty was that after one turn the robot would do one more half turn. This challenge was solved by guess and check. By making the number on duration larger to make the the robot turn sharper and in a 90 degree angle.

DATE: 4/25/2009
Title of Challenge: A. Description (Short Paragraph): First the Robot was told to go straight the turn right. Next it was told to back up while making a noise. B. Programming Code (Picture and Written Explanation): //The screenshot #2// C. Multimedia: media type="custom" key="3716333" //Video Challenge #2// D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph): For challenge number 3 the group had many difficulties. Most of the difficulties were found in how the robot was programmed. The programmer made the mistake by telling the robot to do a infinite loop instead of looping and making an abrupt stop. So, the robot completed the course then would never stop. The group corrected the problem by rereading there instructions for the robot.

DATE: 4/27/2009
Title of Challenge: A. Description (Short Paragraph): B. Programming Code (Picture and Written Explanation): C. Multimedia: D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph):

4. Create a Basic Obstacle Course and Program Your Robot to Navigate It!
Instructions: 1.) Using tape create a basic obstacle course. It must contain three different turns (any type of turn- point, gradual, etc.) and involve sensing a sound to begin the course (sound sensor), and coming to a stop once it recognizes the finish line (a black line- sight sensor). 2.) You will need to modify your robot to have both a sound and sight sensor. 3.) Draw an image of your course in OneNote and include it in your wiki entry (Snip It). Your drawing should include measurements (in metrics) such that anyone could re-create. You will also want to photograph it or record a video. 4.) Complete this challenge just as you would any other in the wiki. You must remove all tape from the floor at the end of the class period.
 * Fold both end of the tape for easy tape removal.**

DATE: 4/27/2009
A. Description (Short Paragraph): In challenge 4 the group was told to create their own course. The course had many changes to it, but finally the group decided on one course and it was soon built. Though not only was the group to build any course, the course must have three turns, it has to start with a sound sensor and it must end with a sight sensor. The sound sensor is activated with a clap, and the sight sensor is indicated with the color of black. B. Programming Code (Picture and Written Explanation): C. Multimedia:
 * Challenge #4**

D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph): The first difficulty that the group encountered was the turns were to sharp for the robot. This group had eliminated this by making the turns wider. Another challenge that this group had encountered was the tape that marked the obstacle course was torn. This was a difficulty because the measurements were hard to read. This problem was resolved by putting a new layer of tape on and rewriting the measurements. The robot was unable to complete this task because the robot started to vear to the right therefore not completing the challenge in time.