Update 'make it communicate' lesson (#372)
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@ -8,9 +8,9 @@ Design, build and program a robotic system that follows a path and communicates
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https://www.youtube.com/watch?v=6piMI1JPDQc
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* Robotic systems are built from smaller, related subsystems. Look at the automobile system shown in the video. What subsystems can you see?
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* What kinds of robots follow a path?
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* What kind of system do you want to make?
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* Robotic systems are built from smaller, related subsystems. Look at the automobile system shown in the video. What subsystems can you see?
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* What kinds of robots follow a path?
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* What kind of system do you want to make?
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### Brainstorm
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@ -21,7 +21,7 @@ Think about:
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* How can the robot sense where it is along the path?
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* How can the robot communicate its position?
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![EV3 + LEGO Bricks](/static/lessons/make-it-communicate/hero.png)
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![EV3 + LEGO Bricks](/static/lessons/make-it-communicate/ev3-plus-parts.jpg)
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## Construct
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@ -30,24 +30,25 @@ Think about:
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You can start by tinkering with the LEGO elements in the picture and then build on.
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More building ideas:
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* [EV3 Frames](https://le-www-live-s.legocdn.com/sc/media/files/support/mindstorms%20ev3/building-instructions/design%20engineering%20projects/ev3%20frames-5054ee378e624fb4cb31158d2fc8e5cf.pdf)
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* [Tracks](https://le-www-live-s.legocdn.com/sc/media/files/support/mindstorms%20ev3/building-instructions/design%20engineering%20projects/tracks-32d7554813af3f25cf5012d54a4bad2b.pdf)
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[![EV3 Frames](/static/lessons/make-it-communicate/ev3-frames.jpg)](https://le-www-live-s.legocdn.com/sc/media/files/support/mindstorms%20ev3/building-instructions/design%20engineering%20projects/ev3%20frames-5054ee378e624fb4cb31158d2fc8e5cf.pdf)
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* [Color Sensor 2](https://le-www-live-s.legocdn.com/sc/media/files/support/mindstorms%20ev3/building-instructions/design%20engineering%20projects/color%20sensor_v2-e7fd54b6fa3cdfe36f414c1d2510f9cb.pdf)
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[![Tracks](/static/lessons/make-it-communicate/ev3-tracks.jpg)](https://le-www-live-s.legocdn.com/sc/media/files/support/mindstorms%20ev3/building-instructions/design%20engineering%20projects/tracks-32d7554813af3f25cf5012d54a4bad2b.pdf)
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[![Color Sensor 2](/static/lessons/make-it-communicate/ev3-color-sensor2.jpg)](https://le-www-live-s.legocdn.com/sc/media/files/support/mindstorms%20ev3/building-instructions/design%20engineering%20projects/color%20sensor_v2-e7fd54b6fa3cdfe36f414c1d2510f9cb.pdf)
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Build a path for your robot to follow. You can use electrical tape on a floor, or marker on paper. You can use objects as milestones to indicate a path that can be detected by either the Touch Sensor, Color Sensor, or Ultrasonic Sensor.
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## Program
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### Program
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Before you program, think about:
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* How will you program the robot to follow a path?
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* How will you program the robot to communicate its position?
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* Which programming blocks will you use?
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* How will you program the robot to follow a path?
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* How will you program the robot to communicate its position?
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* Which programming blocks will you use?
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### ~ hint
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### ~hint
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Explore the different Motor and Sensor blocks in the programming menu.
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@ -55,17 +56,25 @@ Explore the different Motor and Sensor blocks in the programming menu.
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### Sample Solution
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[Video: EV3 Track Rover](/static/lessons/make-it-communicate/trackrover.mp4)
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[![Video: EV3 Track Rover](/static/lessons/make-it-communicate/ev3-track-rover.jpg)](/static/lessons/make-it-communicate/trackrover.mp4)
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The Track Rover follows a path using the color sensor. It identifies two locations by color.
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[Building Instructions](https://le-www-live-s.legocdn.com/sc/media/lessons/mindstorms-ev3/ev3-dep/building%20instructions/track-rover-bi-6aadb1b053df0c58a0dea108b5ce0eea.pdf)
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Track Rover solution combines these building ideas:
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* EV3 frames
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* Tracks
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* Color sensor 2
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Two copies of the tracks are built: one for the right side and a mirror image for the left side.
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[![Track rover assembled](/static/lessons/make-it-communicate/ev3-track-rover2.jpg)](https://le-www-live-s.legocdn.com/sc/media/lessons/mindstorms-ev3/ev3-dep/building%20instructions/track-rover-bi-6aadb1b053df0c58a0dea108b5ce0eea.pdf)
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### Sample Program Solution
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This program works with the Track Rover. If you create a different robot, adjust the program to fit your solution.
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#### Program summary:
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Program summary:
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* If the Color Sensor sees black, Motor B runs at -50 power and Motor C turns off.
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* If the Color Sensor sees white, Motor B turns off and Motor C runs at -50 power.
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@ -91,35 +100,10 @@ forever(function () {
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motors.stopAll()
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music.playSoundEffectUntilDone(sounds.colorsRed)
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motors.largeBC.run(-50)
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} else {
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}
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})
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```
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```blocks
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sensors.color3.onColorDetected(ColorSensorColor.Black, function () {
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motors.largeB.run(-50)
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motors.largeC.run(0)
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})
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sensors.color3.onColorDetected(ColorSensorColor.White, function () {
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motors.largeB.run(0)
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motors.largeC.run(-50)
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})
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sensors.color3.onColorDetected(ColorSensorColor.Green, function () {
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motors.stopAll()
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music.playSoundEffect(sounds.colorsGreen)
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pause(1000)
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motors.largeBC.run(-50)
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})
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sensors.color3.onColorDetected(ColorSensorColor.Red, function () {
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motors.stopAll()
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music.playSoundEffect(sounds.colorsRed)
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pause(1000)
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motors.largeBC.run(-50)
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})
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```
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### Download and test
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Click Download and follow the instructions to get your code onto your EV3 Brick. Press the center button on the EV3 Brick to run the program.
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@ -129,36 +113,39 @@ Click Download and follow the instructions to get your code onto your EV3 Brick.
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### Test and Analyze
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As you work on your solution:
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1. Describe one part of your design that worked especially well.
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2. Describe one design change that you had to make.
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3. What will you try next?
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### Review and Revise
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Take a moment to reflect on your robot solution.
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### Think about:
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* Can the robot’s movement be more accurate?
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* What are some ways that others have solved the problem?
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Think about:
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* Can the robot’s movement be more accurate?
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* What are some ways that others have solved the problem?
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Describe two ways you could improve your robot.
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## Continue
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### Personalize your project
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* Add/remove LEGO elements to improve the way your robot moves.
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* Click on the JavaScript tab and experiment with changing the values in the code.
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* Add a custom image or sounds by adding blocks from the Brick or Music menus.
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* Add/remove LEGO elements to improve the way your robot moves.
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* Click on the JavaScript tab and experiment with changing the values in the code.
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* Add a custom image or sounds by adding blocks from the Brick or Music menus.
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## Communicate
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Here are some ideas:
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* Create a video of your project, especially your final presentation and your robot’s performance.
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* Explain some important features of your software program.
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* Produce a building guide for your model by taking a series of photographs as you deconstruct it.
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* Include an image of your program with comments.
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* Add a team photograph!
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* Create a video of your project, especially your final presentation and your robot’s performance.
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* Explain some important features of your software program.
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* Produce a building guide for your model by taking a series of photographs as you deconstruct it.
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* Include an image of your program with comments.
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* Add a team photograph!
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Congratulations! What will you design next?
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