Welcome! In this project, you will build your own seismograph. This activity will teach how to use the micro:bit to chart the strength of the acceleration. Let's get started! Project duration: 25 minutes.
We will measure `acceleration (mg)` in terms of strength or Magnitude. Get the acceleration value (milli g-force), as measured in strength or Magnitude.
Use the plot bar chart to visualize the acceleration on the LED screen of the micro:bit in the specified range. You implement forever and plot Bar Graph to constantly display a vertical bar graph, which will be based on the "value" and "high" value. Then measure the acceleration based on the strength or Magnitude.
First, notice that moving the micro:bit in the simulator in any direction, you will change the acceleration value, which is being displayed as the same color as the micro:bit simulator. And notice that by moving the micro:bit simulator, there is a changing acceleration value. Second, the flat colored horizontal line will start a waving line to display the value of the strength as measured in milli-gravities. Finally, notice that the LED display will fluctate based on the movement of the micro:bit simulator.
The flat, black colored line should appear directly beneath the colored line. The black line measures the micro:bit acceleration. And the colored line measures micro:bit simulator acceleration.
Run the acceleration experiment by vigarously moving the plate in any direction or move the object below the micro:bit (such as a table).
Every time the micro:bit moves in any direction, you generate data points that can be reviewed in Excel later. The more attempts to move the micro:bit, the more data to be reviewed in Excel.
First, notice that moving the micro:bit in any direction, you will change the acceleration value, which is being displayed as the same color as the micro:bit. By moving the micro:bit, there is a changing acceleration value.
Second, the flat colored horizontal line will start moving to plot the value of the strength as measured in milli-gravities. The horizontal line's movement is based on the micro:bit acceleration in Magnitude or Strength.
A CSV file will be generated to display the data points collected by the micro:bit. Click or tap on the data Excel file that was downloaded to your local Downloads Folder.
We want to select the chart called Line. A line chart is used to display trends over time. We will use the line chart because there are many data points over time.
Use the Chart Elements, Chart Styles, and Chart Filters buttons next to the upper-right corner of the chart to add chart elements like axis titles or data labels, to customize the look of your chart