# PIR生物紅外線感測器模組
## PIR生物紅外線感測器模組
**專案說明**
使用「Raspberry Pi Pico W」連接「PIR生物紅外線感測器模組」, 偵測是否有人接近 , 進而讀取PIR生物紅外線感測器模組的數值變化。此 **PIR生物紅外線感測器模組**包含於「洞洞五教學材料包」內。
### **感測器調整說明**
經測試，左邊旋鈕為調整靈敏度/距離，右邊旋鈕為調整偵測有人經過後，輸出高電位持續的時間。詳細說明如下圖所示。
### **PIR生物紅外線感測器模組電路圖**
* Raspberry Pi Pico W
* Raspberry Pi Pico W 擴充板
* PIR生物紅外線感測器模組
**PIR生物紅外線感測器模組**是**數位訊號**輸入， 可以接「D0\~ D28」的Raspberry Pi Pico W 擴充板訊號端上。 本範例連接到「D7」
### **BlocklyDuino 程式 (PIR)**
### **Arduino 程式(PIR.ino)如下**
```
void setup()
{
pinMode(7, INPUT);
Serial.begin(9600);
}
void loop()
{
int moving = digitalRead(7);
if (moving == 1) {
Serial.println("有人經過!");
} else {
Serial.println("目前無人!");
}
Serial.println((String("數值 :")+String(moving)));
delay(1000);
}
```
### **程式執行結果:**
當有人接近時，會顯示**有人經過! 數值 :1** ，反之，沒有人時，會顯示**目前無人! 數值 :0**。
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