Daisuke Nakayama
BME280にアクセスするためのライブラリ
Diff: BME280.h
- Revision:
- 3:df1107ddf502
- Parent:
- 2:42725d11023b
- Child:
- 4:4c4e3ec9a2c4
--- a/BME280.h Tue Jul 10 07:59:58 2018 +0000
+++ b/BME280.h Tue Jul 10 08:57:26 2018 +0000
@@ -6,74 +6,123 @@
#include "BME280_reg.h" //レジスタ関連の定義
+//BME280クラス
class BME280{
public:
/**
- @brief Create a new i2c sensor.
- @param sda SDA pin name (Defined in PinName.h)
- @param sck SCK pin name (Defined in PinName.h)
+ @brief BME280クラスの作成
+ @param[in] sda SDAピン名 (PinName.hに定義)
+ @param[in] sck SCKピン名 (PinName.hに定義)
+ @param[in] mode 測定動作モード(BME_reg.hに定義)
+ @param[in] press_sample 気圧のオーバーサンプリング(BME_reg.hに定義)
+ @param[in] temp_sample 温度のオーバーサンプリング(BME_reg.hに定義)
+ @param[in] hum_sample 湿度のオーバーサンプリング(BME_reg.hに定義)
+ @param[in] filter IIRフィルタの時定数設定(BME_reg.hに定義)
+ @param[in] stanby 測定後休止時間の設定(ノーマルモードのみ有効,BME_reg.hに定義)
*/
- BME280(PinName sda, PinName scl);
+ BME280(PinName sda, PinName scl,
+ char mode = BME280_FORCE_MODE,
+ char press_sample = BME280_PRESS_OVER_SAMPL1,
+ char temp_sample = BME280_TEMP_OVER_SAMPL1,
+ char hum_sample = BME280_HUM_OVER_SAMPL1,
+ char filter = BME280_IIR_OFF,
+ char stanby = 0);
+
/**
- @brief Create a new i2c sensor.
- @param &i2c_obj i2c name
+ @brief BME280クラスの作成.
+ @param &i2c_obj i2c名
+ @param[in] mode 測定動作モード(BME_reg.hに定義)
+ @param[in] press_sample 気圧のオーバーサンプリング(BME_reg.hに定義)
+ @param[in] temp_sample 温度のオーバーサンプリング(BME_reg.hに定義)
+ @param[in] hum_sample 湿度のオーバーサンプリング(BME_reg.hに定義)
+ @param[in] filter IIRフィルタの時定数設定(BME_reg.hに定義)
+ @param[in] stanby 測定後休止間の設定(ノーマルモードのみ有効,BME_reg.hに定義)
*/
- BME280(GEN_I2C &i2c_obj);
+ BME280(GEN_I2C &i2c_obj,
+ char mode = BME280_FORCE_MODE,
+ char press_sample = BME280_PRESS_OVER_SAMPL1,
+ char temp_sample = BME280_TEMP_OVER_SAMPL1,
+ char hum_sample = BME280_HUM_OVER_SAMPL1,
+ char filter = BME280_IIR_OFF,
+ char stanby = 0);
/**
- @brief Disable the i2c sensor.
- @param No parameters.
+ @brief BME280クラスのデストラクタ
+ @param パラメータなし.
*/
virtual ~BME280();
- const char hum_reg_value = BMP280_HUM_OVER_SAMPL1;
- const char meas_reg_value = BMP280_TEMP_OVER_SAMPL1 | BMP280_PRESS_OVER_SAMPL1 | BMP280_SLEEP_MODE;
- const char config_reg_value = BMP280_IIR_OFF;
+ /**
+ @brief 気圧(単位:Pa)
+ */
+ double press;
+ /**
+ @brief 温度(単位:℃)
+ */
float temp;
- double press;
+ /**
+ @brief 湿度(単位:％)
+ */
float hum;
+
+ /**
+ @brief センサからデータを読み取って気圧、温度、湿度データ更新
+ @param パラメータなし.
+ */
void read_sensor(void);
- bool data_is_ready(void);
- void set_sleep_mode(void);
- void set_force_mode(void);
- void set_normal_mode(void);
private:
+ //i2c用
GEN_I2C *i2c_p;
GEN_I2C &sensor;
+ //初期化関数
+ void init(void);
+
+ //設定保持用
+ char _mode;
+ char _press_sample;
+ char _temp_sample;
+ char _hum_sample;
+ char _filter;
+ char _stanby;
+
+ //強制測定モードをセットする関数。
+ inline void set_force_mode(void);
+
+//データ補正用関数とそこで使う変数(データシートより)
long signed int t_fine;
long signed int BME280_compensate_T_int32(long signed int adc_T);
long unsigned int BME280_compensate_P_int64(long signed int adc_P);
long unsigned int BME280_compensate_H_int32(long signed int adc_H);
-
- void init(void);
-
- //データシートより，補正定数
+
+ //温度補正係数
unsigned short dig_T1;
- signed short dig_T2;
- signed short dig_T3;
+ signed short dig_T2;
+ signed short dig_T3;
+ //気圧補正係数
unsigned short dig_P1;
- signed short dig_P2;
- signed short dig_P3;
- signed short dig_P4;
- signed short dig_P5;
- signed short dig_P6;
- signed short dig_P7;
- signed short dig_P8;
- signed short dig_P9;
+ signed short dig_P2;
+ signed short dig_P3;
+ signed short dig_P4;
+ signed short dig_P5;
+ signed short dig_P6;
+ signed short dig_P7;
+ signed short dig_P8;
+ signed short dig_P9;
+ //湿度補正係数
unsigned char dig_H1;
- signed short dig_H2;
+ signed short dig_H2;
unsigned char dig_H3;
- signed short dig_H4;
- signed short dig_H5;
- signed char dig_H6;
+ signed short dig_H4;
+ signed short dig_H5;
+ signed char dig_H6;
};