Tutorial Build LM35 Temperature Sensor Circuit with Arduino

Project this time will create a temperature sensor using arduino as a microcontroller, a LCD temperature data viewer and LM35 temperature sensor that functions as a sensor. Experiment this time you can test yourself at home, as a learning exercise with arduino microcontroller. In this tutorial I will not make the hardware, simply by simulating the circuit in Proteus. Because in principle the result must be the same as the original circuit.

temperature sensor

LM35 temperature sensor is a type of temperature sensor that is most widely used for simple microcontroller project. Actually very many other types of temperature sensors can be used. However, because these sensors are cheap to become a favorite. LM35 temperature sensor is a type of sensor that has an analog voltage output. LM35 sensor can detect temperature range of -55 Celsius to 150 Celsius. Sensor output voltage will vary from -1 volt to 5 volts in accordance with the conditions of the temperature of the room. Sensor output voltage will increase by 10mV / Celsius.

Results in the form of analog voltage output sensor, then to process the data from the sensors is required ADC (Analog To Digital Converter). Arduino that we will use as a microcontroller processing the data contained in it have ADC, so the sensor can be directly connected to the Arduino. For more details, let’s see explanation below

temperature sensor 2

The temperature sensor is connected to pin A0 and LCD connected to pin 2-7 on arduino. Sedehana with the circuit configuration as above, we just add arduino program. Arduino program serves to convert the analog voltage from the sensor then converts it to digital with a range of 0-1023 (10bit). Once converted later calculation process to obtain the actual temperature value.

download datasheet here http://www.ti.com/lit/ds/symlink/lm35.pdf


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