Example Code for Arduino-Temperature Measurement

Last revision 2026/01/06

This article presents a step-by-step guide for measuring temperature using Arduino, including a sample code for the LM35 temperature sensor and a wiring diagram to assist in the hardware setup.

Wiring Diagram

Sample Code

void setup()
{
    Serial.begin(9600);//Set Baud Rate to 9600 bps
}

void loop()
{
    uint16_t val;
    double dat;
    val=analogRead(A0);//Connect LM35 on Analog 0
    dat = (double) val * (5/10.24);
    Serial.print("Tep:"); //Display the temperature on Serial monitor
    Serial.print(dat);
    Serial.println("C");
    delay(500);
}

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