kopia lustrzana https://github.com/DL7AD/pecanpico9
98 wiersze
2.7 KiB
C
98 wiersze
2.7 KiB
C
/***************************************************************************
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This is a library for the BME280 humidity, temperature & pressure sensor
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Designed specifically to work with the Adafruit BME280 Breakout
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----> http://www.adafruit.com/products/2650
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These sensors use I2C or SPI to communicate, 2 or 4 pins are required
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to interface.
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Adafruit invests time and resources providing this open source code,
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please support Adafruit andopen-source hardware by purchasing products
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from Adafruit!
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Written by Limor Fried & Kevin Townsend for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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***************************************************************************/
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#ifndef __BME280_H__
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#define __BME280_H__
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#include "ch.h"
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#include "hal.h"
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#define P_0 101325
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#define BME280_ADDRESS_EXT 0x76
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#define BME280_ADDRESS_INT 0x77
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#define BME280_REGISTER_DIG_T1 0x88
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#define BME280_REGISTER_DIG_T2 0x8A
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#define BME280_REGISTER_DIG_T3 0x8C
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#define BME280_REGISTER_DIG_P1 0x8E
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#define BME280_REGISTER_DIG_P2 0x90
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#define BME280_REGISTER_DIG_P3 0x92
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#define BME280_REGISTER_DIG_P4 0x94
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#define BME280_REGISTER_DIG_P5 0x96
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#define BME280_REGISTER_DIG_P6 0x98
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#define BME280_REGISTER_DIG_P7 0x9A
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#define BME280_REGISTER_DIG_P8 0x9C
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#define BME280_REGISTER_DIG_P9 0x9E
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#define BME280_REGISTER_DIG_H1 0xA1
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#define BME280_REGISTER_DIG_H2 0xE1
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#define BME280_REGISTER_DIG_H3 0xE3
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#define BME280_REGISTER_DIG_H4 0xE4
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#define BME280_REGISTER_DIG_H5 0xE5
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#define BME280_REGISTER_DIG_H6 0xE7
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#define BME280_REGISTER_CHIPID 0xD0
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#define BME280_REGISTER_VERSION 0xD1
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#define BME280_REGISTER_SOFTRESET 0xE0
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#define BME280_REGISTER_CAL26 0xE1
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#define BME280_REGISTER_CONTROLHUMID 0xF2
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#define BME280_REGISTER_CONTROL 0xF4
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#define BME280_REGISTER_CONFIG 0xF5
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#define BME280_REGISTER_PRESSUREDATA 0xF7
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#define BME280_REGISTER_TEMPDATA 0xFA
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#define BME280_REGISTER_HUMIDDATA 0xFD
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typedef struct {
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uint16_t dig_T1;
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int16_t dig_T2;
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int16_t dig_T3;
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uint16_t dig_P1;
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int16_t dig_P2;
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int16_t dig_P3;
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int16_t dig_P4;
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int16_t dig_P5;
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int16_t dig_P6;
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int16_t dig_P7;
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int16_t dig_P8;
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int16_t dig_P9;
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uint8_t dig_H1;
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int16_t dig_H2;
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uint8_t dig_H3;
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int16_t dig_H4;
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int16_t dig_H5;
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int8_t dig_H6;
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} bme280_calib_data_t;
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// BME280 handle
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typedef struct {
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uint8_t address;
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int32_t t_fine;
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bme280_calib_data_t calib;
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} bme280_t;
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bool BME280_isAvailable(uint8_t address);
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void BME280_Init(bme280_t *handle, uint8_t address);
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int16_t BME280_getTemperature(bme280_t *handle);
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uint32_t BME280_getPressure(bme280_t *handle, uint16_t means);
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uint8_t BME280_getHumidity(bme280_t *handle);
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int32_t BME280_getAltitude(uint32_t seaLevel, uint32_t atmospheric);
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#endif
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