Arduino Toolkit - lps22hb

: lps22hb: LPS22HB absolute pressure and temperature sensor

Methods

: obj = lps22hb(arObj)

: obj = lps22hb(arObj, propertyname, propertyvalue ....)

Constructor to create LPS22HB sensor

Inputs

arObj - the arduino parent object

propertyname, propertyvalue - optional property name, value pairs. Current known properties are: Current properties are:

I2CAddress: I2C address of the sensor (default 0x5C)
Bus: I2C bus - 0 or 1 (default 0)

Outputs

obj - created object

Example

 
 a = arduino()
 sensor = lps22hb(a)

: [C, timestamp] = readTemperature(obj)

Read the temperature

Inputs

obj - the sensor object

Outputs

C - read temperature in deg C.

timestamp - timestamp when read

Example

 
 a = arduino()
 s = lps22hb(a)
 # get temp
 temp = s.readTemperature

See also: lps22hb.

: [P, timestamp] = readPressure(obj)

Read the pressure

Inputs

obj - the sensor object

Outputs

P - pressure reading from sensor.

timestamp - timestamp when read

: [readings, overrun] = read(obj)

: [P, C, timestamp, overrun] = read(obj)

Read the sensor data

Inputs

obj - the sensor object

Outputs

P - pressure reading from sensor.

C - temperature reading from sensor.

timestamp - timestamp when read

overrun - overrun flag.

readings - table structure with fields for Timestamp, Pressure, Temperature and Humidity.

: inf = info(obj)

Read the sensor info

Inputs

obj - the sensor object

Outputs

inf - structure containing the sensor information.

Structure fields are:

Version: Chip firmware version
SensorId: sensor id value
Type: sensor type ’lps22hb’
Status: Status value read from sensor

: flush(obj)

Flush sensor data

Inputs

obj - the sensor object

Outputs

None

: release(obj)

Release the resources of the sensor

Inputs

obj - the sensor object

Outputs

None