Minds and Computers 3.1 Preview Spin left motor Spin right motor Wait until the motors have spun two rotations Stop left motor Stop right motor What five.

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Presentation transcript:

Minds and Computers 3.1 Preview Spin left motor Spin right motor Wait until the motors have spun two rotations Stop left motor Stop right motor What five steps would the robot have to take in order to go forward for 2 rotations?

Minds and Computers 3.2 Preview Now lets examine what that would look like in the NXT Educational Programming Software. 1.Spin left motor2. Spin right motor 3. Wait for 2 rotations 4. Stop left motor5. Stop right motor

Minds and Computers 3.3 Preview While programming your motor blocks, make sure you select the proper output ports, and set both motors to the same direction and power level.

Minds and Computers 3.4 Preview l Don’t forget, the comments you include in your program don’t actually have any effect on what your robot will do. l Comments simply act as reminders for you when you edit your program. Here, the “wait for 1440 degrees” won’t do anything because the actual Wait Block is set to wait for 720 degrees.

Minds and Computers 3.5 Opening Activity Many things affected how far your robot traveled. The number of degrees your Wait For block is set to wait for The size of your tires

Minds and Computers 3.6 Wheels and Distance In this activity we’re going to program our robot to move an exact distance. To do so we must understand a few things about circles. STARTFINISH

Minds and Computers 3.7 Review Let’s start with the basics. Answer the following: 1. What is a radius of a circle? 2. What is a diameter of a circle? 3. What is the formula for the circumference of a circle? The distance from the center to the outside of a circle. The distance, through a circle’s center, from one edge to another. Circumference= diameter * π rd

Minds and Computers 3.8 Preview With our knowledge of circumference, we can start figuring out how to control the distance our robot goes.

Minds and Computers 3.9 Preview Finally, be sure to save frequently. That way, if anything happens to your computer you don’t have to start over.