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36 lines
1.2 KiB
36 lines
1.2 KiB
//TMP36 Pin Variables
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int sensorPin = 0; //the analog pin the TMP36's Vout (sense) pin is connected to
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//the resolution is 10 mV / degree centigrade with a
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//500 mV offset to allow for negative temperatures
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/*
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* setup() - this function runs once when you turn your Arduino on
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* We initialize the serial connection with the computer
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*/
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void setup()
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{
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Serial.begin(9600); //Start the serial connection with the computer
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//to view the result open the serial monitor
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}
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void loop() // run over and over again
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{
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//getting the voltage reading from the temperature sensor
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int reading = analogRead(sensorPin);
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// converting that reading to voltage, for 3.3v arduino use 3.3
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float voltage = reading * 5.0;
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voltage /= 1024.0;
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// print out the voltage
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Serial.print(voltage); Serial.println(" volts");
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// now print out the temperature
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float temperatureC = (voltage - 0.5) * 100 ; //converting from 10 mv per degree wit 500 mV offset
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//to degrees ((voltage - 500mV) times 100)
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Serial.print(temperatureC);
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Serial.println(" degrees C");
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delay(1000); //waiting a second
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}
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