Library for Bosch BMP280 temperature and pressure sensor
Dependents: ELEC350-LCD-DEMO ELEC350-CWTEMPLATE-2017 ELEC351_v1 ELEC350-CWTEMPLATE-2017 ... more
Fork of BMP280 by
Library for Temperature and Pressure Sensor Bosch BMP280.
Breakoutboard for example from Adafruit
BME280.h
- Committer:
- MACRUM
- Date:
- 2015-04-06
- Revision:
- 1:763a4018aaec
- Parent:
- 0:ade9be832910
- Child:
- 4:ddcaa259e65b
File content as of revision 1:763a4018aaec:
/** * BME280 Combined humidity and pressure sensor library * * @author Toyomasa Watarai * @version 1.0 * @date 06-April-2015 * * Library for "BME280 temperature, humidity and pressure sensor module" from Switch Science * https://www.switch-science.com/catalog/2236/ * * For more information about the BME280: * http://ae-bst.resource.bosch.com/media/products/dokumente/bme280/BST-BME280_DS001-09.pdf */ #ifndef MBED_BME280_H #define MBED_BME280_H #include "mbed.h" //#define _DEBUG #define DEFAULT_SLAVE_ADDRESS (0x76 << 1) #ifdef _DEBUG extern Serial pc; #define DEBUG_PRINT(...) pc.printf(__VA_ARGS__) #else #define DEBUG_PRINT(...) #endif /** BME280 class * * BME280: A library to correct environmental data using Boshe BME280 device * * BME280 is an environmental sensor * @endcode */ class BME280 { public: /** Create a BME280 instance * which is connected to specified I2C pins with specified address * * @param sda I2C-bus SDA pin * @param scl I2C-bus SCL pin * @param slave_adr (option) I2C-bus address (default: 0x76) */ BME280(PinName sda, PinName sck, char slave_adr = DEFAULT_SLAVE_ADDRESS); /** Create a BME280 instance * which is connected to specified I2C pins with specified address * * @param i2c_obj I2C object (instance) * @param slave_adr (option) I2C-bus address (default: 0x76) */ BME280(I2C &i2c_obj, char slave_adr = DEFAULT_SLAVE_ADDRESS); /** Destructor of BME280 */ virtual ~BME280(); /** Initializa BME280 sensor * * Configure sensor setting and read parameters for calibration * */ void initialize(void); /** Read the current temperature value (degree Celsius) from BME280 sensor * */ float getTemperature(void); /** Read the current pressure value (hectopascal)from BME280 sensor * */ float getPressure(void); /** Read the current humidity value (humidity %) from BME280 sensor * */ float getHumidity(void); private: I2C *i2c_p; I2C &i2c; char address; uint16_t dig_T1; int16_t dig_T2, dig_T3; uint16_t dig_P1; int16_t dig_P2, dig_P3, dig_P4, dig_P5, dig_P6, dig_P7, dig_P8, dig_P9; uint16_t dig_H1, dig_H3; int16_t dig_H2, dig_H4, dig_H5, dig_H6; int32_t t_fine; }; #endif // MBED_BME280_H