LM35 Class Reference

API for the DFRobot LM35 Linear Temperature Sensor. More...

Detailed Description

• ID: lm35
• Name: Analog Temperature Sensor
• Other Names: LM35
• Category: temp
• Manufacturer: dfrobot
• Link: http://www.dfrobot.com/index.php?route=product/product&product_id=76
• Connection: analog

This sensor returns an analog voltage proportional to the temperature of the ambient environment.

It has a range of 2C to 150C.

This driver was developed using the DFRobot LM35 Linear Temperature Sensor

  // Instantiate a LM35 on analog pin A0, with a default analog
  // reference voltage of 5.0
  upm::LM35 *sensor = new upm::LM35(0);
  
  // Every half second, sample the sensor and output the temperature

  while (shouldRun)
    {
      cout << "Temperature: " << sensor->getTemperature() << " C" << endl;
      
      usleep(500000);
    }

Public Member Functions
	LM35 (int pin, float aref=5.0)
	~LM35 ()
float	getTemperature ()
void	setScale (float scale)
void	setOffset (float offset)

Protected Attributes
lm35_context	m_lm35

Constructor & Destructor Documentation

LM35	(	int	pin,
		float	aref = 5.0
	)

LM35 constructor

Parameters

pin	Analog pin to use
aref	Analog reference voltage; default is 5.0 V

~LM35

(

)

LM35 destructor

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Member Function Documentation

float getTemperature

(

void

)

Returns the temperature in degrees Celsius

Returns

The Temperature in degrees Celsius

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void setScale

(

float

scale

)

Set sensor scale. This scale is applied to the return values before the offset is applied. Default is 1.0.

Parameters

scale

Scale to apply.

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void setOffset

(

float

offset

)

Set sensor offset. This offset is applied to the return values before scaling. Default is 0.0.

Parameters

offset

Offset to apply.

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Collaboration diagram for LM35:

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The documentation for this class was generated from the following files:

• src/lm35/lm35.hpp
• src/lm35/lm35.cxx