# 4.懸浮粒子測量

<figure><img src="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6uJvpXC43onNIIwhMlWo%2Fuploads%2FUNN7tqPEQzZPgY2lEvkd%2Fimage.png?alt=media&#x26;token=32049896-d26e-4a23-b714-b0cbc091c342" alt=""><figcaption></figcaption></figure>

微細懸浮粒子是懸浮在空氣中的粒子，標稱氣動直徑為2.5微米或以下，因而亦稱為PM2.5。它由不同來源排出，包括燃料燃燒過程，車輛廢氣及工業排放等 。

同學可以在以下實驗測量到不同地點的PM2.5懸浮粒子濃度。

### 實驗準備

#### 請同學準備以下實驗硬件:

* 未來板Lite 顯示板 / Micro:bit+Robotbit
* PM2.5測量儀器
* 黑色連接線

### 未來板Lite版本

#### 硬件接線

請同學將PM2.5測量儀器連接到未來板Lite顯示板上。

<figure><img src="/files/PgQVToKuGOfExpjBYVHm" alt=""><figcaption></figcaption></figure>

#### 開啟程式

請同學在未來板Lite上開啟「04.PM\_i2c.py檔案。

<figure><img src="/files/JK4gkqF6HkkL1DN2KYNr" alt=""><figcaption></figcaption></figure>

{% embed url="<https://youtu.be/t0IWq0CMLTk>" %}

#### 進行測量

未來板Lite會一直顯示測量到空氣中的PM2.5及PM10懸浮粒子的濃度(μg/m³)。

<figure><img src="/files/Uks2DRUfDgMsywe3yhZX" alt=""><figcaption></figcaption></figure>

#### Datalogging頁面

{% hint style="info" %}
未來板IP地址/html/pm.html
{% endhint %}

<figure><img src="/files/MBudL9qQz8AtuTI0W4vB" alt=""><figcaption></figcaption></figure>

數據儲存在pmdata資料夾

<figure><img src="/files/WAd9MpwT1ydZQXQt7QCv" alt=""><figcaption></figcaption></figure>

### Micro:bit版本

#### 硬件接線

<figure><img src="/files/dO7Y9fJzlMx4HlOPvY2l" alt=""><figcaption></figcaption></figure>

#### 參考程式

{% embed url="<https://makecode.microbit.org/_ERMXCCe6zDVi>" %}

[下載參考程式](https://makecode.microbit.org/_gq9DAhdrU4FM)


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