It is commonly used as a temperature measurement sensor. It includes thermocouples, platinum resistance, thermal resistance, and temperature semiconductor chips, which are commonly used in high-temperature measurement thermocouples. This temperature sensor is suitable for measuring the temperature of 0-200 degrees or below, in which the application of a simple semiconductor temperature sensor has good linearity and high sensitivity. The LM35 linear temperature sensor and sensor-specific expansion of Arduino board, in combination, can be very easy to achieve. The LM35 linear temperature sensor pin definitions:

(1) Output

(2) complex

(3) power

• Calibrated directly in Degree Celsius
• Linear + 10.0 mV/C scale factor
• 0.5C accuracy guarantee-able (at +25C)
• Rated for full 55 to +150C range
• Operates from 4 to 30 volts
• Less than 60mA current drain
• Low self-heating, 0.08C in still air