#include <HardwareSerial.h>


HardwareSerial MySerial(PA3, PA2);


void setup() {

  MySerial.begin(9600);

  pinMode(PA_0, INPUT); 

  MySerial.println("可變電阻測試開始...");

}


void loop() {

  // 讀取可變電阻的數值

  int potValue = analogRead(PA_0);


  float voltage = (potValue * 3.3) / 1023.0;


  // 將數值印出來

  MySerial.print("電壓值: ");

  MySerial.print(voltage, 2);

  MySerial.println(" V");


  delay(1000);

}

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