Digital Temperature Module เป็นโมดูลวัดอุณหภูมิในช่วง 20-80 °C โดยมี output เป็น Digital (0, 1) ใช้ R ปรับค่าได้ กำหนดค่าการทำงานของ output  ใช้ไฟเลี้ยง 3.3V-5V 

Features : 

1. using the NTC thermistor sensor , good sensitivity 

2. the comparator output signal clean waveform is good , driving ability, than 15mA. 

3. adjust the temperature distribution bit detection threshold 

4. Working voltage 3.3V-5V 

5. the output format : Digital switching output (0 and 1) 

6. with bolt holes for easy installation 

7. a small board PCB size : 3.2cm x 1.4cm 

8. using a wide voltage LM393 comparator 

Module for use 

1. the thermal resistance of the module is very sensitive to the ambient temperature , generally used to detect the ambient temperature ; 

2. through the adjustment of the potentiometer , can change the temperature detection threshold (ie, temperature control value) , if necessary to control the ambient temperature is 50 degrees , the module in the corresponding ambient temperature to which the green light , DO output is HIGH level falls below the set temperature value, the output is high , the green light does not shine ; 

3. DO output can be directly connected with the microcontroller through the microcontroller to detect high and low , thereby detecting the ambient temperature changes ; 

4. DO OUR outputs can directly drive the relay module , which can be composed of a thermostat to control the operating temperature of related equipment can also be connected to the fan used to heat and other ; 

5. the detection range of the module's temperature 20-80 °C ; 

6. this module can also be replaced with a wire temperature sensor for water temperature, water tank controlled.

โค้ดโปรแกรมตัวอย่าง

const int SensorPin = 7;     // the number of the SensorPin

const int ledPin =  13;        // the number of the LED pin

int SensorState = 0;         

void setup()

{

  pinMode(ledPin, OUTPUT);      

  pinMode(SensorPin, INPUT);   

  Serial.begin(9600);  

}

void loop()

{

  SensorState = digitalRead(SensorPin);  // อ่านค่าสถานะของ Sensor

  int val = analogRead(A0);   

  Serial.println(val);

 if (buttonState == HIGH)  // ตรวจสอบสถานะของ Sensor

 {     

        digitalWrite(ledPin, HIGH);  // turn LED on: 

  } 

else

{

  digitalWrite(ledPin, LOW);    // turn LED off:

 }

}

การต่อวงจร