39 lines
1 KiB
C++
39 lines
1 KiB
C++
#ifndef BME280_H
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#define BME280_H
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#include "../../include/attsensor.h"
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#define BME280_I2CADDR 0x76
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class BME280 : public AttSensor {
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private:
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// Variables for Calibration Values
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uint8_t dig_H1, dig_H3;
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int8_t dig_H6;
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uint16_t dig_T1, dig_P1;
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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;
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// Helper Variable
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int32_t t_fine;
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// Functions for Calculation compensated Values
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int32_t compensate_t(int32_t);
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int32_t compensate_p(int32_t);
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int32_t compensate_h(int32_t);
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// Helper Functions for Reading / Writing I2C Data
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uint8_t read8(uint8_t addr);
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uint16_t read16(uint8_t addr);
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uint16_t read16_LE(uint8_t addr);
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int16_t readS16(uint8_t addr);
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int16_t readS16_LE(uint8_t addr);
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void write8(uint8_t addr, uint8_t data);
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void getCalData(void);
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public:
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BME280(void);
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uint8_t getSensorData(char *payload, uint8_t startbyte);
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void initialize(void) {getCalData();};
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uint8_t numBytes(void) {return 12;};
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};
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#endif
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