Arduino与Proteus仿真实例-DS1621温度传感器驱动仿真

DS1621温度传感器驱动仿真

DS1621 数字温度计和恒温器提供 9 位温度读数，指示器件的温度。当器件温度超过用户定义的温度 TH 时，热报警输出 TOUT 处于活动状态。输出保持有效，直到温度低于用户定义的温度 TL，允许任何必要的滞后。
用户定义的温度设置存储在非易失性存储器中，因此零件可以在插入一个系统。温度设置和温度读数都传送到/从DS1621 通过一个简单的 2 线串行接口。

DS1621的引脚功能如下：

1、仿真电路原理图

2、仿真代码实现

本次实例使用到如下开源库：

DS1621-temperature-probe-library-for-Arduino

演示代码如下：

#include <Wire.h> 

#include <DS1621.h>

// DS1621 demo
// based on code from McPhalen published at http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1198065647

// SDA pin is Analog4
// SCL pin is Analog5
// DS1621 has A2, A1, and A0 pins connected to GND

byte addr = 0x48;  // replace the 0 with the value you set on pins A2, A1 and A0
DS1621 sensor=DS1621(addr);


void setup()
{
  sensor.startConversion(false);                       // stop if presently set to continuous
  sensor.setConfig(DS1621::POL | DS1621::ONE_SHOT);                    // Tout = active high; 1-shot mode
  sensor.setThresh(DS1621::ACCESS_TH, 27);                     // high temp threshold = 80F
  sensor.setThresh(DS1621::ACCESS_TL, 24);                     // low temp threshold = 75F

  Serial.begin(9600);
  delay(5);
  Serial.println("DS1621 Demo");

  int tHthresh = sensor.getTemp(DS1621::ACCESS_TH);
  Serial.print("High threshold = ");
  Serial.println(tHthresh);

  int tLthresh = sensor.getTemp(DS1621::ACCESS_TL);
  Serial.print("Low threshold = ");
  Serial.println(tLthresh);
}


void loop()
{
  int tC, tFrac;
  
  tC = sensor.getHrTemp();                             // read high-resolution temperature
  
  if (tC < 0) {
    tC = -tC;                                   // fix for integer division
    Serial.print("-");                          // indicate negative
  }
  
  tFrac = tC % 100;                             // extract fractional part
  tC /= 100;                                    // extract whole part
  
  Serial.print(tC);
  Serial.print(".");
  if (tFrac < 10)
    Serial.print("0");
  Serial.println(tFrac);
  
  delay(500);
}