Open a new sketch File by clicking New.The Analog to Digital Converter (ADC) converts analog values into a digital approximation based on the formula ADC Value = sample * 1024 / reference voltage (+5v). Infrared Thermometer using Arduino and IR Temperature Sensor Rated for full −55°C to 150°C range 5. So with a +5 volt reference, the digital approximation will be equal to input voltage * 205.You will see the temperature display on the serial port monitor which is updated every second. Linear + 10-mV/°C scale factor 3. Coding in the Arduino language will control your circuit.
Calibrated directly in Celsius (Centigrade) 2. Suitable for remote applications 0.5°C ensured accuracy (at 25°C) 4. The Temperature Sensor LM35 series are precision integrated-circuit temperature devices with an output voltage linearly proportional to the Centigrade temperature.The LM35 device has an advantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a large constant voltage from the output to obtain convenient Centigrade scaling. The LM35 device does not require any external calibration or trimming to provide typical accuracies of ±¼°C at room temperature and ±¾°C over a full −55°C to 150°C temperature range.Follow the circuit diagram and hook up the components on the breadboard as shown in the image given below.Open the Arduino IDE software on your computer. 1.