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# Measuring Water Turbidity

<figure><img src="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6uJvpXC43onNIIwhMlWo%2Fuploads%2FCg3h4E22a2raNnDEC8Zg%2Fimage.png?alt=media&#x26;token=d515962b-28cd-46aa-bb02-bb2ad9ae757e" alt=""><figcaption></figcaption></figure>

Human activities emit dirty substances into the rivers and oceans, this affects water quality.

### Experiment Preparations

#### Prepare the following equipment:

* Futureboard Lite
* Turbidity Measuring Device
* 3 Color Connecting Cable

#### Wiring

Connect the turbidity measuring device to the futureboard lite.

<figure><img src="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6uJvpXC43onNIIwhMlWo%2Fuploads%2F7QhEaZCQQVQLxBCtYGqq%2Fturbidity_wiring.png?alt=media&#x26;token=6d3d02ea-305b-418d-8945-be3e964c3324" alt=""><figcaption></figcaption></figure>

#### Select Program

Open 「污水混濁度.py」.

{% embed url="<https://youtu.be/SaZO2MJzdlM>" %}

#### Begin Measuring

Put the Turbidity Measuring Device into clean distilled water and Press Button A to calibrate.

Futureboard lite will display the measured turbidity(NTU).

{% embed url="<https://youtu.be/keSccyhM_FE?si=UaBW3P6HIvgvQomW&t=50>" %}


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