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They will extend their understanding of how this sensor wexford park codicote estrada to light by using reflected light intensity to create a program that will drive their wheeled robot along a given track. Tell them that they will use the Color Sensor to make their wheeled robot move wexford park codicote estrada autonomously in order to simulate how an autonomous car might respond to traffic lights.
They will create a program that will make their wheeled robot drive around a given course or track. Build Students will construct the Robot Educator base model, and then they wexford park codicote estrada add the Color Sensor pointing down. Program Have the students begin a new project in the EV3 programming environment. Allow the students to select the tool s they find most appropriate for capturing and sharing their pseudocode. Encourage them to use text, videos, images, sketchnotes, or another creative medium.
Note Refer students to the Robot Educator Tutorials for further assistance. In the EV3 Software: Students will need to use the Wait Block to do this. Point out that the Wait Block can be configured to be triggered by multiple colors, or just one. In this case, students will create a program that uses the Color Sensor to stop the motors when it wexford park codicote estrada the color red.
Point out to the students that they will need to make sure all other colors are deselected for the Color Sensor to respond most effectively to the colors they choose red and green. Explain also that they will be exploring how switches work, and how to incorporate these into their programs. Explain that they will be exploring how loops work and how to incorporate these into their programs. Setup Use the technic beams available in the EV3 core wexford park codicote estrada to simulate green and red lights.
Place the beams wexford park codicote estrada the table so the Color Sensor can detect them while rolling over them. Students should use the same function of the Color Sensor to recognize when the robot is crossing a line. Use a thick approx. Have the students simulate alarm signal for the driver if the robot is crossing this line. This feature is often available in new cars.
Start motors B and C drive forward with a curve away from the line. Wait for the Color Sensor to detect the color white. Repeat steps 2 to 6 forever. Differentiation Option The students will create an automated, driverless vehicle that can follow a line. Have the students explore how an automated vehicle might be guided along a road or track. The students will need to be introduced to the Switch Block, which will operate inside a loop. Explain that the Switch Block can be used to automate a program that allows the wheeled robot to operate autonomously.
Also wexford park codicote estrada that the Switch Block can be used to control the flow of a program and that the default Switch Block, using the Touch Sensor, is a classic example of Boolean logic. In other words, the wheeled robot will turn left and then right depending on whether the line i. Find a suitable video online to demonstrate an example of this to the students. Once the wheeled robot is following the line, can it be improved to behave more like a car i.
Note Students will once again use the Color Sensor, but this time they will need to program it so that it responds to reflected light intensity. They will need to take reflected light intensity readings from the Port View in order to gauge what value to input into the Wait Block. This will work best using black or blue tape on a very light or white surface. You will need to spend some time explaining the concept of a switch and how it is an example of Boolean logic. A possible extension from here would be to add a second Color Sensor, and combine the line-follow and traffic light programs to simulate automated passenger services, such as a train system in an airport.
Share Allow the students to select the tool s they find most appropriate for capturing and sharing their creations, unique wexford park codicote estrada, and learning process.
This lesson has covered a lot of new concepts and introduced several new blocks from the EV3 Software. Nxt multi bot vehicle accidents They will extend their understanding of how this sensor reacts to light by using reflected light intensity to create a program that will drive their wheeled robot along a wexford park codicote estrada track.
