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pxt-microbit Accessibility PR (#529)

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* Accessibility changes
This commit is contained in:
Sam El-Husseini
2017-09-07 13:42:08 -07:00
committed by GitHub
parent 3f87576a50
commit e3975e65e5
357 changed files with 1641 additions and 3540 deletions
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18
docs/lessons/charting/activity.md
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@ -2,12 +2,12 @@
Measure the acceleration on the @boardname@ in the "x" direction.
### ~avatar avatar
## ~avatar avatar
Welcome! This activity will teach how to use the @boardname@ to chart the acceleration in the "x" direction. Let's get started!
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Let's measure `acceleration (mg)` in the "x" direction. Get the acceleration value (milli g-force), in one of three specified dimensions.
@ -15,7 +15,7 @@ Let's measure `acceleration (mg)` in the "x" direction. Get the acceleration val
input.acceleration(Dimension.X)
```
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Use the plot bar chart to visualize the acceleration on the LED screen of the @boardname@ in the specified range. You implement plot Bar Graph to display a vertical bar graph based on the "value" and "high" value. Then you must insert acceleration in the X dimension to measure the acceleration.
```blocks
@ -25,25 +25,25 @@ basic.forever(() => {
```
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Notice that moving the @boardname@ in the simulator from left to right (x direction) changes the values beneath the @boardname@ in a range from 1023 to -1023 as measured in milli-gravities. By hovering over the @boardname@ from left to right, you can observe changing values beneath the @boardname@ simulator. Also, the LEDs shown on the Bar Graph fluctates based on the movement of the @boardname@ simulator in the x direction. The line underneath the @boardname@ simulator reflect the acceleration in the x direction.
NOTE: The colors of the charts reflect the color of the @boardname@ simulator. In this instance, the @boardname@ is yellow. So the color of the data line reflects the color of the @boardname@
![](/static/mb/data4.png)
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Vigorously move the @boardname@ in the @boardname@ simulatator by moving the @boardname@ image from side to side. Every time the @boardname@ moves in the x direction in the simulator, you are generating data points that can be reviewed in Excel. The more attempts to move the @boardname@ from side to side, the more data being saved in Excel. After you have vigarously moved the @boardname@ simulator from side to side for a sufficient amount of time, you are ready to graph or chart the accceleration of the @boardname@. We want a printout of our acceleration on Excel that can be graphed in Excel.
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We want to chart the data collected by using a tool in Excel.
The final part of this experiment is opening and reviewing the data in the Excel CSV file. Simply click on the line beneath the simulator. A CSV file will be generated to display the data points collected by moving the @boardname@ in the X direction. Then click or tap on the data Excel file that was downloaded to your local ``Downloads`` Folder.
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First, click or tap on the first two columns (A, B) to include the time of the data being collected; b) the results of acceleration data on the @boardname@
@ -60,9 +60,9 @@ Use the Recommended Charts command on the Insert tab to quickly create a chart t
* On the Recommended Charts tab, scroll through the list of chart types that Excel recommends for your data. Pick the **scatter plot**.
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## ~avatar avatar
Excellent, you're ready to continue with the [challenges](/lessons/charting/challenge)
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