uno_st_lm35_print.inc

int potPin = 2; //定义模拟端口2连接LM35温度传感器

void setup()
{
  Serial.begin(9600);
}

void loop()
{
  int val; //存放读取的电压值
  int dat; //存放温度
  
  val = analogRead(potPin);
  Serial.print("Val:");
  Serial.println(val);
  //@link http://www.arduino.cn/forum.php?mod=viewthread&tid=7309
  //V=Vref*val/1024
  //10mV*T=Vref*val/1024,eg:Vref = 5000mV
  //10mV * T = 5000mV * val / 1024
  //T = 500mV * val / 1024
  //T = 500mV * val / 256 * 4
  //T = 125 * val / 256 ,in C  /256 eq >> 8
  //T = (125 * val) >> 8
  dat = (125 * val) >> 8;
  Serial.print("Tep:");
  Serial.print(dat);
  Serial.println("C");
  Serial.println("---------------------------------");
  delay(1000);
}