v3_firmware/firmware/BME280.h

42 lines
981 B
C++

#ifndef BME280_H
#define BME280_H
#include <stdint.h>
#define BME280_I2CADDR 0x76
class BME280
{
private:
// Variables for Calibration Values
uint8_t dig_H1, dig_H3;
int8_t dig_H6;
uint16_t dig_T1, dig_P1;
int16_t dig_T2, dig_T3, dig_P2, dig_P3, dig_P4, dig_P5, dig_P6, dig_P7, dig_P8, dig_P9, dig_H2, dig_H4, dig_H5;
// Helper Variable
int32_t t_fine;
// Functions for Calculation compensated Values
int32_t compensate_t(int32_t);
int32_t compensate_p(int32_t);
int32_t compensate_h(int32_t);
// Helper Functions for Reading / Writing I2C Data
uint8_t read8(uint8_t addr);
uint16_t read16(uint8_t addr);
uint16_t read16_LE(uint8_t addr);
int16_t readS16(uint8_t addr);
int16_t readS16_LE(uint8_t addr);
void write8(uint8_t addr, uint8_t data);
public:
BME280(void);
// Get Calibration Data from Sensor
void getCalData(void);
// Read Pressure From Sensor
void getData(int32_t *t, int32_t *p, int32_t *h);
};
#endif