2016-04-29 01:49:57 +02:00
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# Seismograph Lesson
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Build a seismograph with household materials
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## Topic
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Acceleration & Analog Read Pin
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## Quick Links
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* [activity](/lessons/seismograph/activity)
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2016-05-12 17:48:10 +02:00
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* [challenge](/lessons/seismograph/challenge)
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2016-04-29 01:49:57 +02:00
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## Prior learning/place of lesson in scheme of work
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Learn how to **show LEDs** to turn on a LED light pattern on the LED screen. We will be learning basic comments such as show LEDs and pause.
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## Documentation
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```cards
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2016-06-02 06:13:30 +02:00
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basic.forever(() => {});
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radio.sendNumber(0);
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input.acceleration(Dimension.Strength)
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radio.onDataReceived(() => {});
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led.plotBarGraph(0, 0);
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radio.receiveNumber();
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2016-04-29 01:49:57 +02:00
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```
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## Objectives
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* learn how to repeat code forever in the background
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* learn how to display a vertical bar graph based on the value.
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* learn how to return the sum of the two numbers
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* learn how to get acceleration value in milli-gravitys
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* learn how to read the connector value as analog as a value comprised between 0 and 1023
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