Driver for Sensirion SCD30, CO2 sensor module using I2C. The device also senses Temperature and Humidity.
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scd30 Class Reference
Create SCD30 controller class.
More...
#include <scd30.h >
struct scdSTRuct Structure to access SCD30's raw and finished data. More... scd30 (PinName sda, PinName scl, int i2cFrequency) Create a SCD30 object using the specified I2C object. ~scd30 () Destructor. uint8_t startMeasurement (uint16_t baro) Start Auto-Measurement. uint8_t stopMeasurement () Stop Auto-Measurement. uint8_t setMeasInterval (uint16_t mi) Set Measurement Interval. uint8_t getReadyStatus () Get Ready Status register. uint8_t readMeasurement () Get all environmental parameters (CO2, Temp and Hum) uint8_t setTemperatureOffs (uint16_t temp) Set Temperature offset. uint8_t setAltitudeComp (uint16_t alt) Set Altitude Compensation. uint8_t softReset () Perform a soft reset. uint8_t calcCrc2b (uint16_t seed) Calculate the SCD30 CRC value. uint8_t checkCrc2b (uint16_t seed, uint8_t crcIn) Compare received CRC value with calculated CRC value. uint8_t startOneMeasurement (uint16_t baro) Start a Single-Measurement. uint8_t getArticleCode () Get Article Code. uint8_t getSerialNumber () Get Serial Number.
Detailed Description
Create SCD30 controller class.
Parameters:
Definition at line 31 of file scd30.h .
Constructor & Destructor Documentation
scd30 (
PinName
sda ,
PinName
scl ,
int
i2cFrequency
)
Create a SCD30 object using the specified I2C object.
Parameters:
sda - mbed I2C interface pin scl - mbed I2C interface pin I2C Frequency (in Hz)
Returns: none Definition at line 7 of file scd30.cpp .
Destructor.
Parameters:
Returns: none Definition at line 14 of file scd30.cpp .
Member Function Documentation
uint8_t calcCrc2b
(
uint16_t
seed )
Calculate the SCD30 CRC value.
Parameters:
16 bit value to perform a CRC check on
Returns: 8 bit CRC value Definition at line 179 of file scd30.cpp .
uint8_t checkCrc2b
(
uint16_t
seed ,
uint8_t
crcIn
)
Compare received CRC value with calculated CRC value.
Parameters:
16 bit value to perform a CRC check on 8 bit value to compare CRC values
Returns: enum SCDerror Definition at line 206 of file scd30.cpp .
uint8_t getArticleCode
(
)
Get Article Code.
Parameters:
Returns: enum SCDerror Definition at line 232 of file scd30.cpp .
uint8_t getReadyStatus
(
)
Get Ready Status register.
Parameters:
See also: Ready Status result in scdSTR structure Returns: enum SCDerror Definition at line 63 of file scd30.cpp .
uint8_t getSerialNumber
(
)
Get Serial Number.
Parameters:
See also: ASCII Serial Number in scdSTR structure Returns: enum SCDerror Definition at line 251 of file scd30.cpp .
uint8_t readMeasurement
(
)
Get all environmental parameters (CO2, Temp and Hum)
Parameters:
See also: Results in scdSTR structure Returns: enum SCDerror Definition at line 83 of file scd30.cpp .
uint8_t setAltitudeComp
(
uint16_t
alt )
Set Altitude Compensation.
Parameters:
Returns: enum SCDerror Definition at line 152 of file scd30.cpp .
uint8_t setMeasInterval
(
uint16_t
mi )
Set Measurement Interval.
Parameters:
Time between measurements (in seconds)
Returns: enum SCDerror Definition at line 48 of file scd30.cpp .
uint8_t setTemperatureOffs
(
uint16_t
temp )
Set Temperature offset.
Parameters:
Temperature offset (value in 0.01 degrees C)
Returns: enum SCDerror Definition at line 137 of file scd30.cpp .
Perform a soft reset.
Parameters:
Returns: enum SCDerror Definition at line 167 of file scd30.cpp .
uint8_t startMeasurement
(
uint16_t
baro )
Start Auto-Measurement.
Parameters:
Barometer reading (in mB) or 0x0000
Returns: enum SCDerror Definition at line 21 of file scd30.cpp .
uint8_t startOneMeasurement
(
uint16_t
baro )
Start a Single-Measurement.
Parameters:
Barometer reading (in mB) or 0x0000
Returns: enum SCDerror Definition at line 217 of file scd30.cpp .
uint8_t stopMeasurement
(
)
Stop Auto-Measurement.
Parameters:
Returns: enum SCDerror Definition at line 36 of file scd30.cpp .
Kevin Braun
1.7.2