Wiki source code of Accelerometer
Last modified by dvd48 on 2020/06/14 20:25
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| author | version | line-number | content |
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3.1 | 1 | (% style="text-align:center" %) |
| 2 | [[image:t-rex.gif||class="img-rounded"]] | ||
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| 4 | (% class="box infomessage" %) | ||
| 5 | ((( | ||
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11.1 | 6 | Use the phone sensors to create a t-rex detector. Now you know if a dino or a person is creeping up. Follow these steps to create a first version. Remix it afterwards and create something personal. |
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3.1 | 7 | ))) |
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1.1 | 8 | |
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3.1 | 9 | (% class="box" %) |
| 10 | ((( | ||
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1.1 | 11 | == What bricks do you need? == |
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| 13 | Create a new program and add the following object: | ||
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3.1 | 15 | (% style="text-align:center" %) |
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10.1 | 16 | [[image:object.png]] |
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3.1 | 17 | ))) |
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1.1 | 18 | |
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3.1 | 19 | (% class="row" %) |
| 20 | ((( | ||
| 21 | (% class="col-xs-12 col-sm-6" %) | ||
| 22 | ((( | ||
| 23 | (% class="box" %) | ||
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| 25 | = Now add these scripts to the dot object: = | ||
| 26 | |||
| 27 | **~1. Step** | ||
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1.1 | 29 | The **dot **which visualizes the vibration should start at the upper edge of your phone. Set the y-value to the maximum of your phone’s screen. In this example it is 960. Also set the size of the dot to a size you like. |
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3.1 | 31 | (% style="text-align:center" %) |
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10.1 | 32 | [[image:1.png]] |
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3.1 | 33 | ))) |
| 34 | ))) | ||
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1.1 | 35 | |
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3.1 | 36 | (% class="col-xs-12 col-sm-6" %) |
| 37 | ((( | ||
| 38 | (% class="box" %) | ||
| 39 | ((( | ||
| 40 | **2. Step** | ||
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| 42 | Now add the** pen down-brick**. From now on the **dot **object is drawing a line. | ||
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| 44 | (% style="text-align:center" %) | ||
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10.1 | 45 | [[image:2.png]] |
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3.1 | 46 | ))) |
| 47 | ))) | ||
| 48 | ))) | ||
| 49 | |||
| 50 | (% class="row" %) | ||
| 51 | ((( | ||
| 52 | (% class="col-xs-12 col-sm-6" %) | ||
| 53 | ((( | ||
| 54 | (% class="box" %) | ||
| 55 | ((( | ||
| 56 | **3. Step** | ||
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1.1 | 58 | The **dot **is ready to move over the whole stage. To do this reduce the y-value by minus 1 for the whole screen height. The screen height can be easily computed by multiplying the maximum y-value with two. |
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3.1 | 60 | (% style="text-align:center" %) |
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10.1 | 61 | [[image:3.png]] |
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3.1 | 62 | ))) |
| 63 | ))) | ||
| 64 | |||
| 65 | (% class="col-xs-12 col-sm-6" %) | ||
| 66 | ((( | ||
| 67 | (% class="box" %) | ||
| 68 | ((( | ||
| 69 | **4. Step** | ||
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1.1 | 71 | You have to set the x-value of the **dot **according to the vibration. For this you can use a combination of the accelerations of the phone. Just add the accelerations of the x, y, and z direction and multiply the sum with the factor 100. You find the “acceleration_x”, “acceleration_y” and “acceleration_z” sensor value under the category device in the formula editor. Change the factor if you want the detector to react more or less sensitive. |
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9.1 | 73 | (% style="text-align:center" %) |
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10.1 | 74 | [[image:4.png]] |
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3.1 | 75 | ))) |
| 76 | ))) | ||
| 77 | ))) | ||
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1.1 | 78 | |
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3.1 | 79 | (% class="box" %) |
| 80 | ((( | ||
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10.1 | 81 | == Remix Inspirations == |
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1.1 | 82 | |
| 83 | [[Change how the t-rex detector looks like>>https://share.catrob.at/pocketcode/program/31926]] | ||
| 84 | |||
| 85 | [[Add functionality to the t-rex detector >>https://share.catrob.at/pocketcode/program/32735]] | ||
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3.1 | 86 | ))) |
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12.1 | 87 | |
| 88 | (% class="box infomessage" %) | ||
| 89 | ((( | ||
| 90 | [[Download the program>>https://share.catrob.at/pocketcode/program/31927]] | ||
| 91 | ))) |