Update 'make it communicate' lesson (#372)

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Galen Nickel 2018-03-19 21:07:30 -07:00 committed by GitHub
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@ -21,7 +21,7 @@ Think about:
* How can the robot sense where it is along the path?
* How can the robot communicate its position?
![EV3 + LEGO Bricks](/static/lessons/make-it-communicate/hero.png)
![EV3 + LEGO Bricks](/static/lessons/make-it-communicate/ev3-plus-parts.jpg)
## Construct
@ -30,16 +30,17 @@ Think about:
You can start by tinkering with the LEGO elements in the picture and then build on.
More building ideas:
* [EV3 Frames](https://le-www-live-s.legocdn.com/sc/media/files/support/mindstorms%20ev3/building-instructions/design%20engineering%20projects/ev3%20frames-5054ee378e624fb4cb31158d2fc8e5cf.pdf)
* [Tracks](https://le-www-live-s.legocdn.com/sc/media/files/support/mindstorms%20ev3/building-instructions/design%20engineering%20projects/tracks-32d7554813af3f25cf5012d54a4bad2b.pdf)
[![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)
* [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)
[![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)
[![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)
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.
## Program
### Program
Before you program, think about:
@ -55,17 +56,25 @@ Explore the different Motor and Sensor blocks in the programming menu.
### Sample Solution
[Video: EV3 Track Rover](/static/lessons/make-it-communicate/trackrover.mp4)
[![Video: EV3 Track Rover](/static/lessons/make-it-communicate/ev3-track-rover.jpg)](/static/lessons/make-it-communicate/trackrover.mp4)
The Track Rover follows a path using the color sensor. It identifies two locations by color.
[Building Instructions](https://le-www-live-s.legocdn.com/sc/media/lessons/mindstorms-ev3/ev3-dep/building%20instructions/track-rover-bi-6aadb1b053df0c58a0dea108b5ce0eea.pdf)
Track Rover solution combines these building ideas:
* EV3 frames
* Tracks
* Color sensor 2
Two copies of the tracks are built: one for the right side and a mirror image for the left side.
[![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)
### Sample Program Solution
This program works with the Track Rover. If you create a different robot, adjust the program to fit your solution.
#### Program summary:
Program summary:
* If the Color Sensor sees black, Motor B runs at -50 power and Motor C turns off.
* If the Color Sensor sees white, Motor B turns off and Motor C runs at -50 power.
@ -91,35 +100,10 @@ forever(function () {
motors.stopAll()
music.playSoundEffectUntilDone(sounds.colorsRed)
motors.largeBC.run(-50)
} else {
}
})
```
```blocks
sensors.color3.onColorDetected(ColorSensorColor.Black, function () {
motors.largeB.run(-50)
motors.largeC.run(0)
})
sensors.color3.onColorDetected(ColorSensorColor.White, function () {
motors.largeB.run(0)
motors.largeC.run(-50)
})
sensors.color3.onColorDetected(ColorSensorColor.Green, function () {
motors.stopAll()
music.playSoundEffect(sounds.colorsGreen)
pause(1000)
motors.largeBC.run(-50)
})
sensors.color3.onColorDetected(ColorSensorColor.Red, function () {
motors.stopAll()
music.playSoundEffect(sounds.colorsRed)
pause(1000)
motors.largeBC.run(-50)
})
```
### Download and test
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.
@ -129,15 +113,18 @@ Click Download and follow the instructions to get your code onto your EV3 Brick.
### Test and Analyze
As you work on your solution:
1. Describe one part of your design that worked especially well.
2. Describe one design change that you had to make.
3. What will you try next?
### Review and Revise
Take a moment to reflect on your robot solution.
### Think about:
Think about:
* Can the robots movement be more accurate?
* What are some ways that others have solved the problem?
@ -146,6 +133,7 @@ Describe two ways you could improve your robot.
## Continue
### Personalize your project
* Add/remove LEGO elements to improve the way your robot moves.
* Click on the JavaScript tab and experiment with changing the values in the code.
* Add a custom image or sounds by adding blocks from the Brick or Music menus.
@ -153,6 +141,7 @@ Describe two ways you could improve your robot.
## Communicate
Here are some ideas:
* Create a video of your project, especially your final presentation and your robots performance.
* Explain some important features of your software program.
* Produce a building guide for your model by taking a series of photographs as you deconstruct it.
@ -160,5 +149,3 @@ Here are some ideas:
* Add a team photograph!
Congratulations! What will you design next?

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