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:::

2. PMS5003T(G5T)

2-2 G5T 基礎使用 next

自己的空氣品質自己顧-pm2.5檢測DIY
=====================

<div class="alert alert-info">一、uno + G5T接線</div>全部接腳定義：

![](http://maker.tn.edu.tw/uploads/tad_book3/image/TB2IgWQopXXXXcYXpXXXXXXXXXX_!!2681925680.jpg)

我們只用到這三條線：

![](http://maker.tn.edu.tw/uploads/tad_book3/image/IMG_20181203_154805.jpg)

先用杜邦線公→公來連接到uno

![](http://maker.tn.edu.tw/uploads/tad_book3/image/IMG_20181203_160803.jpg)

![](http://maker.tn.edu.tw/uploads/tad_book3/image/IMG_20181203_160936.jpg)

```

#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 3); // RX, TX

void setup() {
  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

Serial.println("Goodnight moon!");

// set the data rate for the SoftwareSerial port
  mySerial.begin(9600);
  mySerial.println("Hello, world?");
}

void loop() { // run over and over
  if (mySerial.available()) {
    Serial.println(mySerial.read());
  }
  if (Serial.available()) {
    mySerial.println(Serial.read());
  }
}
```

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