49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#ifndef BME280_H
|
|
#define BME280_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#define BME280_I2CADDR 0x76
|
|
|
|
struct lora_data {
|
|
uint8_t bat;
|
|
int32_t temperature;
|
|
int32_t humidity;
|
|
int32_t pressure;
|
|
} __attribute__ ((packed));
|
|
|
|
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 getSensorData(lora_data &loradata);
|
|
};
|
|
#endif
|