pxt-calliope/docs/lessons/seismograph.md

Seismograph Lesson

Build a seismograph with household materials

Topic

Acceleration & Analog Read Pin

Quick Links

• activity
• 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

basic.forever(() => {
    radio.sendNumber(input.acceleration(Dimension.Strength) - 1023);
});
radio.onDataReceived(() => {
    led.plotBarGraph(radio.receiveNumber(), 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