Thermistor PTC 2K COM41

DescriptionThermistor PTC 2K  are ceramic components whose electrical resistance rapidly increases when a certain temperature is exceeded. This feature makes them ideal for use in countless applications of modern electrical and electronic engineering.A PTC thermistor is a thermally sensitive semiconductor resistor. Its resistance value rises sharply with increasing temperature .FeaturesResistance : 2 kOhms Resistance Tolerance: ±1% Operating Temperature: -55°C ~ 70°C Power – Max: 75mWGetting started with Thermistor PTC 2KThis example below shows how you can measure your room temperature using PTC 2k with Arduino UNO. For PTC, when resistance increase temperature increase also. Hardware requiredWhen the manufacturer didn’t specify the value of resistor to be used, you can use the multimeter to calculate its resistance.Arduino UNOThermistor PTC 2KResistor 2kJumpersBreadboardConnecting the HardwareUpload The Sketchint ThermistorPin = 0;int Vo;float R1 = 10000;float logR2, R2, T, Tc, Tf;float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;void setup() {Serial.begin(9600);}void loop() {Vo = analogRead(ThermistorPin);R2 = R1 * (1023.0 / (float)Vo – 1.0);logR2 = log(R2);T = (1.0 / (c1 c2*logR2 c3*logR2*logR2*logR2));Tc = T – 273.15;Tf = (Tc * 9.0)/ 5.0 32.0;Serial.print(“Temperature: “);Serial.print(Tf);Serial.print(” F; “);Serial.print(Tc);Serial.println(” C”);delay(500);}Testing the circuitUpload the program to the Arduino board and then open the serial monitor. If it works correctly you should get the temperature room on the serial monitor.