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Hello, we are the class of 3B and the high school of Isaac Albéniz and we are going to present you a project that we have done in the class of technology.

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The project is a blind stick.

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So, this is a project and it's a stick and we have here the BQ plate with batteries encrusted in.

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We have a buzzer that makes the sound that takes the ultrasonic sensor for when it's near an object.

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And now my friend Lorena is going to explain how we made this to work.

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The code we used to make this project work.

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It makes the ultrasonic sensor and buzzer work together, but first we have made the code in autoblocking.

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And then we have passed it to Arduino.

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And now we are going to give you a sample of the line stick and then we are going to do it.

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Here is a button that can turn off and on.

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When it's near the object, it sounds very quickly.

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When it's medium, it sounds more quickly than it stops and then it's active.

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And when it's far, it sounds very slowly.

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Alright, so this works like that.

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When it's near an object, it sounds like this, so it's very quickly.

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When it's medium, it sounds quickly, it sounds slowly, all the time.

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And when it's near, it doesn't sound, but after a while, it sounds again, sometimes.

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We thank you for your attention and we hope you liked it. Bye!