Lm35 Temperature Sensor Circuit Diagram. Digital temperature sensor circuit. The lm35 series are precision integrated circuit temperature devices with an output voltage linearly proportional to the centigrade temperature.
The 5v for lm35 can be taken from the 55v out pin of arduino uno. It is a small and cheap ic which can be used to measure temperature anywhere between 55 c to 150 c. The temperature sensor is very useful in different ways.
How to use lm35 temperature sensor.
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. The temperature sensor is very useful in different ways. Its another application is a fire alarm circuit. Microcontrollers dont accept analog signals as their input directly.
