... | @@ -17,7 +17,7 @@ The plan is to follow the instructions for Lesson 4 [1]. |
... | @@ -17,7 +17,7 @@ The plan is to follow the instructions for Lesson 4 [1]. |
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### Exercise 1, Black White Detection
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### Exercise 1, Black White Detection
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The NXT light sensor was mounted on the car, which was placed on page 69 of of the LEGO Mindstorms Education NXT Base Set 9797 building instruction, as seen in the figure below.
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The NXT light sensor was mounted on the car, which was placed on page 69 of the LEGO Mindstorms Education NXT Base Set 9797 building instruction, as seen in the figure below.
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![test setup ex 1](https://gitlab.au.dk/rene2014/lego/raw/master/pdfs/Images/4-1-1.jpg)
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![test setup ex 1](https://gitlab.au.dk/rene2014/lego/raw/master/pdfs/Images/4-1-1.jpg)
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... | @@ -51,7 +51,18 @@ So in order for this application to work properly, the car had to start of the l |
... | @@ -51,7 +51,18 @@ So in order for this application to work properly, the car had to start of the l |
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### Exercise 5, PID Line Follower
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### Exercise 5, PID Line Follower
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### Exercise 6, Color Sensor
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### Exercise 6, Color Sensor
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The ColorSensorTest application was programmed to the car and tested on page 69 of the LEGO Mindstorms Education NXT Base Set 9797 building instruction, using the same setup as in exercise 1.
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TODO, insert pic af test, steffan har det vidst
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The application shows both the raw sensor readings and the calculated rgb values, as well as an estimation of the color in question.
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The application was able to correctly identify green and white, however the black color was very unpredictable.
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Sometimes it would show green or yellow.
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The color sensor seems to be very dependent on the distance to the target, as very small movements of the paper (few millimeters) could result in a color change.
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In addition to this, it also seems to be dependent on the curvature of the target object.
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## Conclusion
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## Conclusion
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