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Dependencies:   mbed SickBayTek

BMP280.h@4:de69851cf725, 2020-04-08 (annotated)

Committer:
kabukistarship
Date:
Wed Apr 08 11:28:42 2020 +0000
Revision:
4:de69851cf725
Parent:
3:d15b6579b5ae
Child:
6:b2672da545f1
Misc fixes.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kabukistarship 2:1578ecfa9377 1 /**
kabukistarship 2:1578ecfa9377 2 * BME280 Combined humidity and pressure sensor library
kabukistarship 2:1578ecfa9377 3 *
kabukistarship 2:1578ecfa9377 4 * @author Toyomasa Watarai
kabukistarship 2:1578ecfa9377 5 * @version 1.0
kabukistarship 2:1578ecfa9377 6 * @date 06-April-2015
kabukistarship 2:1578ecfa9377 7 *
kabukistarship 2:1578ecfa9377 8 * Library for "BME280 temperature, humidity and pressure sensor module" from Switch Science
kabukistarship 2:1578ecfa9377 9 * https://www.switch-science.com/catalog/2236/
kabukistarship 2:1578ecfa9377 10 *
kabukistarship 2:1578ecfa9377 11 * For more information about the BME280:
kabukistarship 2:1578ecfa9377 12 * http://ae-bst.resource.bosch.com/media/products/dokumente/bme280/BST-BME280_DS001-10.pdf
kabukistarship 2:1578ecfa9377 13 */
kabukistarship 4:de69851cf725 14 #pragma once
kabukistarship 4:de69851cf725 15 #ifndef BME280MbedDecl
kabukistarship 4:de69851cf725 16 #define BME280MbedDecl
kabukistarship 2:1578ecfa9377 17
kabukistarship 3:d15b6579b5ae 18 #include <mbedBug.h>
kabukistarship 2:1578ecfa9377 19
kabukistarship 2:1578ecfa9377 20 //#define _DEBUG
kabukistarship 2:1578ecfa9377 21 // default address with SDO High 0x77
kabukistarship 2:1578ecfa9377 22 // address with SDO LOW 0x76
kabukistarship 4:de69851cf725 23 #define BMP280SlaveAddressDefault (0x77)
kabukistarship 2:1578ecfa9377 24
kabukistarship 2:1578ecfa9377 25
kabukistarship 2:1578ecfa9377 26 /** A BME280 environmental sensor
kabukistarship 2:1578ecfa9377 27 A library to read environmental temperature and pressure using Bosch BME280. */
kabukistarship 2:1578ecfa9377 28
kabukistarship 2:1578ecfa9377 29 class BMP280 {
kabukistarship 2:1578ecfa9377 30 public:
kabukistarship 2:1578ecfa9377 31
kabukistarship 2:1578ecfa9377 32 enum {
kabukistarship 4:de69851cf725 33 // The default I2C slave address.
kabukistarship 4:de69851cf725 34 SlaveAddress = BMP280SlaveAddressDefault
kabukistarship 2:1578ecfa9377 35 };
kabukistarship 2:1578ecfa9377 36
kabukistarship 2:1578ecfa9377 37 /* Creates a BME280 instance connected to specified I2C pins and address.
kabukistarship 2:1578ecfa9377 38 @param SDA I2C-bus SDA pin
kabukistarship 2:1578ecfa9377 39 @param SCL I2C-bus SCL pin
kabukistarship 2:1578ecfa9377 40 @param SlaveAddress (option) I2C-bus address (default: 0x77) */
kabukistarship 4:de69851cf725 41 BMP280(PinName SDA, PinName SCK,
kabukistarship 4:de69851cf725 42 char SlaveAddress = BMP280SlaveAddressDefault);
kabukistarship 2:1578ecfa9377 43
kabukistarship 2:1578ecfa9377 44 /* Creates a BME280 instance connected to the I2C pins and address.
kabukistarship 2:1578ecfa9377 45 *
kabukistarship 2:1578ecfa9377 46 * @param i2c_obj I2C object (instance)
kabukistarship 2:1578ecfa9377 47 * @param SlaveAddress (option) I2C-bus address (default: 0x77)
kabukistarship 2:1578ecfa9377 48 */
kabukistarship 4:de69851cf725 49 BMP280(I2C &i2c_obj, char SlaveAddress = BMP280SlaveAddressDefault);
kabukistarship 2:1578ecfa9377 50
kabukistarship 2:1578ecfa9377 51 ~BMP280();
kabukistarship 2:1578ecfa9377 52
kabukistarship 2:1578ecfa9377 53 /* Initializa BME280 sensor
kabukistarship 2:1578ecfa9377 54 Configure sensor setting and read parameters for calibration */
kabukistarship 4:de69851cf725 55 void Initialize();
kabukistarship 2:1578ecfa9377 56
kabukistarship 2:1578ecfa9377 57 /* Read the current temperature value (degree Celsius) from BME280 sensor */
kabukistarship 4:de69851cf725 58 float Temperature();
kabukistarship 2:1578ecfa9377 59
kabukistarship 2:1578ecfa9377 60 /* Read the current pressure value (hectopascal)from BME280 sensor */
kabukistarship 4:de69851cf725 61 float Pressure();
kabukistarship 2:1578ecfa9377 62
kabukistarship 2:1578ecfa9377 63 /* Read the current humidity value (humidity %) from BME280 sensor */
kabukistarship 4:de69851cf725 64 //float HumidityGet();
kabukistarship 2:1578ecfa9377 65
kabukistarship 2:1578ecfa9377 66 private:
kabukistarship 2:1578ecfa9377 67
kabukistarship 2:1578ecfa9377 68 I2C *i2c_p;
kabukistarship 2:1578ecfa9377 69 I2C &i2c;
kabukistarship 2:1578ecfa9377 70 char address;
kabukistarship 2:1578ecfa9377 71 uint16_t dig_T1;
kabukistarship 2:1578ecfa9377 72 int16_t dig_T2, dig_T3;
kabukistarship 2:1578ecfa9377 73 uint16_t dig_P1;
kabukistarship 2:1578ecfa9377 74 int16_t dig_P2, dig_P3, dig_P4, dig_P5, dig_P6, dig_P7, dig_P8, dig_P9;
kabukistarship 2:1578ecfa9377 75 uint16_t dig_H1, dig_H3;
kabukistarship 2:1578ecfa9377 76 int16_t dig_H2, dig_H4, dig_H5, dig_H6;
kabukistarship 2:1578ecfa9377 77 int32_t t_fine;
kabukistarship 2:1578ecfa9377 78
kabukistarship 2:1578ecfa9377 79 };
kabukistarship 2:1578ecfa9377 80
kabukistarship 2:1578ecfa9377 81 #undef SlaveAddressDefault
kabukistarship 4:de69851cf725 82 #endif