Temperature With NTC

Other Hardware Sensors
1

How do you meassure the temperature with a NTC? A picture of the arduino and NTC is attached, my code is down here. I just can't find the problem, the Seial monitor only gives letters and symbols.

// analoge pins

int TempPin = A0;
int Temp = 0;

void setup () {

pinMode(TempPin, INPUT);
Serial.begin(38400);
}

void loop() {
Temp = analogRead(TempPin);

//Temp = (0.1035 * TempWaarde) - 29.995;

// Serial.print("TempPin");
Serial.print("Temp");

delay(1000);
}

Sorry for the grammar, English isn't my native language.

2014-02-16 12.33.25.jpg
2014-02-16 12.33.25.jpg3264×2448 1.22 MB

2

you're not printing the temperature you calculate

int TempPin = A0;
float Temp = 0.0;

void setup ()
{
  Serial.begin(38400);
}  

void loop()
{
  Temp = analogRead(TempPin);
  Temp = (0.1035 * Temp ) - 29.995; // do not know if this is the right formula but still
  Serial.print("Temp: ");
  Serial.print(Temp, 3); // 3 decimals
  delay(1000);
}

give it a try

note: the NTC should be part of a voltage divider (see wikipedia)