水位感測器-序列埠視窗監控

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int water_sensor=36; // 水位感測器Ｓ信號腳 連接到ESP32的 GPIO36 
int a;

void setup()    
{   
  Serial.begin(115200);
  pinMode(water_sensor,INPUT); //設置water_sensor對應的腳GPIO36為輸入
}    
      
void loop()  
{
  int val=analogRead(water_sensor); //從水位感測器讀出類比數值
  a=map(val,0,4095,0,100);          //將val轉換成百分比顯示
  Serial.print("水位狀態：");
  Serial.print(val);
  Serial.println(" val");
  Serial.print("水位百分比：");
  Serial.print(a);
  Serial.println(" %");
 
  delay(1000);
}