ESTE: Analog Temperature Sensor 1 (LM35DT - Precision Centigrade Temperature Sensors)

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This experiment is part of this project.

Here we are going to build one experiment to use the ADC and to learn how to use a temperature sensor. Among many types of temperature sensors we are going to use the LM35DT, a precision integrate-circuit temperature sensor, that is directly calibrated in °Celsius (Centigrade) with an output voltage linear (10 mV/°C). So if we want to use this sensor to measure the temperature of one enviroment in °C we will just need to convert each 10mV to 1°C. If we also want to measure the temperature in °F we will need to convert the obtained temperature in °C to °F through the equation °F = (°C x 9/5) + 32°.

Pseudo code

A solution for this experiment is shown and well explained on the Sensor Reading’s script.

Schematic

Schematic to read a Temperature sensor (LM35DT)

Part List

  • 1 LM35DT
  • 1 Protoboard
  • 3 copper wires (tinned) or jumpers


Assembly

Assembly of the Temperature sensor (LM35DT) system

Solutions

Tools

  • AVR GCC and tools
  • Arduino IDE

References

Disponível em “https://wiki.sj.ifsc.edu.br/index.php?title=ESTE:_Analog_Temperature_Sensor_1_(LM35DT_-_Precision_Centigrade_Temperature_Sensors)&oldid=93655”