Hi guys, I gave up figuring out this problem can someone help me. A thermistor i

Question

Hi guys,

I gave up figuring out this problem can someone help me.

A thermistor is a sensor with an electrical resistance that varies with temperature.

By measure the resistance of a thermistor (or by using the thermistor in a voltage divider and measuring the voltage), one can use a thermistor as a temperature

sensor. The calibration formula for a particular thermistor is :

where Rt is the resistance of the thermistor in ohm, and the calibration constants are

a1 = 1.009250 x 10

Explanation / Answer

void setup()

{

Serial.begin(9600);

pinMode(A0, INPUT);

}

void loop() {

float Rt=analogRead(A0);

float a1 = .001009250 ;

float a2 = .0002378405;

float a3 = .0000002019203 ;

float b=double log (double __Rt); // natural logarithm of x

float c=double square (double __b); // square of x

float d= a1 + a2* b + a3*c*b;

int e= 1/d ;

}

String temp = String((int)(e));

Serial.println(temp);

delay(1000);

}

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