# 旋轉電位計模組
## 旋轉電位計模組
**專案說明**
使用「Raspberry Pi Pico W」連接「旋轉電位計模組」, 讀取旋轉電位計模組的數值變化。此 **旋轉電位計模組**包含於「洞洞五教學材料包」內。
### **旋轉電位計模組電路圖**
* Raspberry Pi Pico W
* Raspberry Pi Pico W 擴充板
* 旋轉電位計模組
**旋轉電位計模組**是**類比訊號**輸入， 可以接「A0\~ A2」的Raspberry Pi Pico擴充板訊號端上。 本範例連接到「A0」
### **BlocklyDuino 程式 (Potentiometer)**
每0.5秒鐘會讀取旋轉電位計模組的電位一次， 並顯示在序列埠監控視窗上。
### **Arduino 程式(Potentiometer.ino)如下**
```
void setup()
{
Serial.begin(9600);
}
void loop()
{
Serial.println(analogRead(A0));
delay(500);
}
```
### **程式執行結果:**
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