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BMP280/BMP280.h@2:e7025f2cf0e1, 2018-09-08 (annotated)

Committer:
TUATBM
Date:
Sat Sep 08 09:21:46 2018 +0000
Revision:
2:e7025f2cf0e1
Parent:
0:92024886c0be 
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
TUATBM 0:92024886c0be 1 /**
TUATBM 0:92024886c0be 2 * BME280 Combined humidity and pressure sensor library
TUATBM 0:92024886c0be 3 *
TUATBM 0:92024886c0be 4 * @author Toyomasa Watarai
TUATBM 0:92024886c0be 5 * @version 1.0
TUATBM 0:92024886c0be 6 * @date 06-April-2015
TUATBM 0:92024886c0be 7 *
TUATBM 0:92024886c0be 8 * Library for "BME280 temperature, humidity and pressure sensor module" from Switch Science
TUATBM 0:92024886c0be 9 * https://www.switch-science.com/catalog/2236/
TUATBM 0:92024886c0be 10 *
TUATBM 0:92024886c0be 11 * For more information about the BME280:
TUATBM 0:92024886c0be 12 * http://ae-bst.resource.bosch.com/media/products/dokumente/bme280/BST-BME280_DS001-10.pdf
TUATBM 0:92024886c0be 13 */
TUATBM 0:92024886c0be 14
TUATBM 0:92024886c0be 15 #ifndef MBED_BMP280_H
TUATBM 0:92024886c0be 16 #define MBED_BMP280_H
TUATBM 0:92024886c0be 17
TUATBM 0:92024886c0be 18 #include "mbed.h"
TUATBM 0:92024886c0be 19
TUATBM 0:92024886c0be 20 //#define _DEBUG
TUATBM 0:92024886c0be 21 #define DEFAULT_SLAVE_ADDRESS (0x77 << 1)
TUATBM 0:92024886c0be 22
TUATBM 0:92024886c0be 23 #ifdef _DEBUG
TUATBM 0:92024886c0be 24 extern Serial pc;
TUATBM 0:92024886c0be 25 #define DEBUG_PRINT(...) pc.printf(__VA_ARGS__)
TUATBM 0:92024886c0be 26 #else
TUATBM 0:92024886c0be 27 #define DEBUG_PRINT(...)
TUATBM 0:92024886c0be 28 #endif
TUATBM 0:92024886c0be 29
TUATBM 0:92024886c0be 30
TUATBM 0:92024886c0be 31 /** BME280 class
TUATBM 0:92024886c0be 32 *
TUATBM 0:92024886c0be 33 * BME280: A library to correct environmental data using Boshe BME280 device
TUATBM 0:92024886c0be 34 *
TUATBM 0:92024886c0be 35 * BME280 is an environmental sensor
TUATBM 0:92024886c0be 36 * @endcode
TUATBM 0:92024886c0be 37 */
TUATBM 0:92024886c0be 38
TUATBM 0:92024886c0be 39 class BMP280
TUATBM 0:92024886c0be 40 {
TUATBM 0:92024886c0be 41 public:
TUATBM 0:92024886c0be 42
TUATBM 0:92024886c0be 43 /** Create a BME280 instance
TUATBM 0:92024886c0be 44 * which is connected to specified I2C pins with specified address
TUATBM 0:92024886c0be 45 *
TUATBM 0:92024886c0be 46 * @param sda I2C-bus SDA pin
TUATBM 0:92024886c0be 47 * @param scl I2C-bus SCL pin
TUATBM 0:92024886c0be 48 * @param slave_adr (option) I2C-bus address (default: 0x76)
TUATBM 0:92024886c0be 49 */
TUATBM 0:92024886c0be 50 BMP280(PinName sda, PinName sck, char slave_adr = DEFAULT_SLAVE_ADDRESS);
TUATBM 0:92024886c0be 51
TUATBM 0:92024886c0be 52 /** Create a BME280 instance
TUATBM 0:92024886c0be 53 * which is connected to specified I2C pins with specified address
TUATBM 0:92024886c0be 54 *
TUATBM 0:92024886c0be 55 * @param i2c_obj I2C object (instance)
TUATBM 0:92024886c0be 56 * @param slave_adr (option) I2C-bus address (default: 0x76)
TUATBM 0:92024886c0be 57 */
TUATBM 0:92024886c0be 58 BMP280(I2C &i2c_obj, char slave_adr = DEFAULT_SLAVE_ADDRESS);
TUATBM 0:92024886c0be 59
TUATBM 0:92024886c0be 60 /** Destructor of BME280
TUATBM 0:92024886c0be 61 */
TUATBM 0:92024886c0be 62 virtual ~BMP280();
TUATBM 0:92024886c0be 63
TUATBM 0:92024886c0be 64 /** Initializa BME280 sensor
TUATBM 0:92024886c0be 65 *
TUATBM 0:92024886c0be 66 * Configure sensor setting and read parameters for calibration
TUATBM 0:92024886c0be 67 *
TUATBM 0:92024886c0be 68 */
TUATBM 0:92024886c0be 69 void initialize(void);
TUATBM 0:92024886c0be 70
TUATBM 0:92024886c0be 71 /** Read the current temperature value (degree Celsius) from BME280 sensor
TUATBM 0:92024886c0be 72 *
TUATBM 0:92024886c0be 73 */
TUATBM 0:92024886c0be 74 float getTemperature(void);
TUATBM 0:92024886c0be 75
TUATBM 0:92024886c0be 76 /** Read the current pressure value (hectopascal)from BME280 sensor
TUATBM 0:92024886c0be 77 *
TUATBM 0:92024886c0be 78 */
TUATBM 0:92024886c0be 79 float getPressure(void);
TUATBM 0:92024886c0be 80
TUATBM 0:92024886c0be 81 /** Read the current humidity value (humidity %) from BME280 sensor
TUATBM 0:92024886c0be 82 *
TUATBM 0:92024886c0be 83 */
TUATBM 0:92024886c0be 84 // float getHumidity(void);
TUATBM 0:92024886c0be 85
TUATBM 0:92024886c0be 86 private:
TUATBM 0:92024886c0be 87
TUATBM 0:92024886c0be 88 I2C *i2c_p;
TUATBM 0:92024886c0be 89 I2C &i2c;
TUATBM 0:92024886c0be 90 char address;
TUATBM 0:92024886c0be 91 uint16_t dig_T1;
TUATBM 0:92024886c0be 92 int16_t dig_T2, dig_T3;
TUATBM 0:92024886c0be 93 uint16_t dig_P1;
TUATBM 0:92024886c0be 94 int16_t dig_P2, dig_P3, dig_P4, dig_P5, dig_P6, dig_P7, dig_P8, dig_P9;
TUATBM 0:92024886c0be 95 uint16_t dig_H1, dig_H3;
TUATBM 0:92024886c0be 96 int16_t dig_H2, dig_H4, dig_H5, dig_H6;
TUATBM 0:92024886c0be 97 int32_t t_fine;
TUATBM 0:92024886c0be 98
TUATBM 0:92024886c0be 99 };
TUATBM 0:92024886c0be 100
TUATBM 0:92024886c0be 101 #endif // MBED_BME280_H