pxt-calliope/docs/lessons/seismograph.md
2016-10-24 16:30:21 -07:00

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Markdown

# Seismograph Lesson
Build a seismograph with household materials
## Topic
Acceleration & Analog Read Pin
## Quick Links
* [activity](/lessons/seismograph/activity)
* [challenge](/lessons/seismograph/challenge)
## Prior learning/place of lesson in scheme of work
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.
## Documentation
```cards
basic.forever(() => {});
radio.sendNumber(0);
input.acceleration(Dimension.Strength)
radio.onDataPacketReceived(() => {});
led.plotBarGraph(0, 0);
```
## Objectives
* learn how to repeat code forever in the background
* learn how to display a vertical bar graph based on the value.
* learn how to return the sum of the two numbers
* learn how to get acceleration value in milli-gravitys
* learn how to read the connector value as analog as a value comprised between 0 and 1023
```package
radio
```