Merge pull request #1 from g3gg0/dev

Added basic support for BME680 sensor

Sensors.c

@@ -93,6 +93,7 @@ static const SensorType* sensorTypes[] = {
     &BMP180,
     &BMP280,
     &BME280,
+    &BME680,
     &MAX31855,
     &MAX6675};
 

Sensors.h

@@ -318,8 +318,9 @@ const GPIO*
 //DS18x2x
 #include "./interfaces/OneWireSensor.h"
 #include "./sensors/LM75.h"
-//BMP280, BME280
+//BMP280, BME280, BME680
 #include "./sensors/BMx280.h"
+#include "./sensors/BME680.h"
 #include "./sensors/AM2320.h"
 #include "./sensors/DHT20.h"
 #include "./sensors/SHT30.h"

sensors/BME680.c

@@ -0,0 +1,425 @@
+/*
+    Unitemp - Universal temperature reader
+    Copyright (C) 2022  Victor Nikitchuk (https://github.com/quen0n)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+#include "BME680.h"
+
+const SensorType BME680 = {
+    .typename = "BME680",
+    .interface = &I2C,
+    .datatype = UT_TEMPERATURE | UT_HUMIDITY | UT_PRESSURE,
+    .pollingInterval = 500,
+    .allocator = unitemp_BME680_alloc,
+    .mem_releaser = unitemp_BME680_free,
+    .initializer = unitemp_BME680_init,
+    .deinitializer = unitemp_BME680_deinit,
+    .updater = unitemp_BME680_update};
+
+//Интервал обновления калибровочных значений
+#define BOSCH_CAL_UPDATE_INTERVAL 60000
+
+#define BME680_ID 0x61
+
+#define BME680_I2C_ADDR_MIN (0x76 << 1)
+#define BME680_I2C_ADDR_MAX (0x77 << 1)
+
+#define BME680_REG_STATUS 0x1D
+#define BME680_REG_CTRL_MEAS 0x74
+#define BME680_REG_CONFIG 0x75
+#define BME680_REG_CTRL_HUM 0x72
+//Преддескретизация температуры
+#define BME680_TEMP_OVERSAMPLING_SKIP 0b00000000
+#define BME680_TEMP_OVERSAMPLING_1 0b00100000
+#define BME680_TEMP_OVERSAMPLING_2 0b01000000
+#define BME680_TEMP_OVERSAMPLING_4 0b01100000
+#define BME680_TEMP_OVERSAMPLING_8 0b10000000
+#define BME680_TEMP_OVERSAMPLING_16 0b10100000
+//Преддескретизация давления
+#define BME680_PRESS_OVERSAMPLING_SKIP 0b00000000
+#define BME680_PRESS_OVERSAMPLING_1 0b00000100
+#define BME680_PRESS_OVERSAMPLING_2 0b00001000
+#define BME680_PRESS_OVERSAMPLING_4 0b00001100
+#define BME680_PRESS_OVERSAMPLING_8 0b00010000
+#define BME680_PRESS_OVERSAMPLING_16 0b00010100
+//Преддескретизация влажности
+#define BME680_HUM_OVERSAMPLING_SKIP 0b00000000
+#define BME680_HUM_OVERSAMPLING_1 0b00000001
+#define BME680_HUM_OVERSAMPLING_2 0b00000010
+#define BME680_HUM_OVERSAMPLING_4 0b00000011
+#define BME680_HUM_OVERSAMPLING_8 0b00000100
+#define BME680_HUM_OVERSAMPLING_16 0b00000101u
+//Режимы работы датчика
+#define BME680_MODE_SLEEP 0b00000000 //Наелся и спит
+#define BME680_MODE_FORCED 0b00000001 //Обновляет значения 1 раз, после чего уходит в сон
+//Коэффициент фильтрации значений
+#define BME680_FILTER_COEFF_1 0b00000000
+#define BME680_FILTER_COEFF_2 0b00000100
+#define BME680_FILTER_COEFF_4 0b00001000
+#define BME680_FILTER_COEFF_8 0b00001100
+#define BME680_FILTER_COEFF_16 0b00010000
+//Разрешить работу по SPI
+#define BME680_SPI_3W_ENABLE 0b00000001
+#define BME680_SPI_3W_DISABLE 0b00000000
+
+/* https://github.com/boschsensortec/BME680_driver/blob/master/bme680.c or
+   https://github.com/boschsensortec/BME68x-Sensor-API */
+static float BME680_compensate_temperature(I2CSensor* i2c_sensor, int32_t temp_adc) {
+    BME680_instance* bme680_instance = (BME680_instance*)i2c_sensor->sensorInstance;
+    float var1 = 0;
+    float var2 = 0;
+    float calc_temp = 0;
+
+    /* calculate var1 data */
+    var1 =
+        ((((float)temp_adc / 16384.0f) - ((float)bme680_instance->temp_cal.dig_T1 / 1024.0f)) *
+         ((float)bme680_instance->temp_cal.dig_T2));
+
+    /* calculate var2 data */
+    var2 =
+        (((((float)temp_adc / 131072.0f) - ((float)bme680_instance->temp_cal.dig_T1 / 8192.0f)) *
+          (((float)temp_adc / 131072.0f) - ((float)bme680_instance->temp_cal.dig_T1 / 8192.0f))) *
+         ((float)bme680_instance->temp_cal.dig_T3 * 16.0f));
+
+    /* t_fine value*/
+    bme680_instance->t_fine = (var1 + var2);
+
+    /* compensated temperature data*/
+    calc_temp = ((bme680_instance->t_fine) / 5120.0f);
+
+    return calc_temp;
+}
+
+static float BME680_compensate_pressure(I2CSensor* i2c_sensor, int32_t pres_adc) {
+    BME680_instance* bme680_instance = (BME680_instance*)i2c_sensor->sensorInstance;
+
+    float var1;
+    float var2;
+    float var3;
+    float calc_pres;
+
+    var1 = (((float)bme680_instance->t_fine / 2.0f) - 64000.0f);
+    var2 = var1 * var1 * (((float)bme680_instance->press_cal.dig_P6) / (131072.0f));
+    var2 = var2 + (var1 * ((float)bme680_instance->press_cal.dig_P5) * 2.0f);
+    var2 = (var2 / 4.0f) + (((float)bme680_instance->press_cal.dig_P4) * 65536.0f);
+    var1 =
+        (((((float)bme680_instance->press_cal.dig_P3 * var1 * var1) / 16384.0f) +
+          ((float)bme680_instance->press_cal.dig_P2 * var1)) /
+         524288.0f);
+    var1 = ((1.0f + (var1 / 32768.0f)) * ((float)bme680_instance->press_cal.dig_P1));
+    calc_pres = (1048576.0f - ((float)pres_adc));
+
+    /* Avoid exception caused by division by zero */
+    if((int)var1 != 0) {
+        calc_pres = (((calc_pres - (var2 / 4096.0f)) * 6250.0f) / var1);
+        var1 =
+            (((float)bme680_instance->press_cal.dig_P9) * calc_pres * calc_pres) / 2147483648.0f;
+        var2 = calc_pres * (((float)bme680_instance->press_cal.dig_P8) / 32768.0f);
+        var3 =
+            ((calc_pres / 256.0f) * (calc_pres / 256.0f) * (calc_pres / 256.0f) *
+             (bme680_instance->press_cal.dig_P10 / 131072.0f));
+        calc_pres =
+            (calc_pres +
+             (var1 + var2 + var3 + ((float)bme680_instance->press_cal.dig_P7 * 128.0f)) / 16.0f);
+    } else {
+        calc_pres = 0;
+    }
+
+    return calc_pres;
+}
+
+static float BME680_compensate_humidity(I2CSensor* i2c_sensor, int32_t hum_adc) {
+    BME680_instance* bme680_instance = (BME680_instance*)i2c_sensor->sensorInstance;
+    float calc_hum;
+    float var1;
+    float var2;
+    float var3;
+    float var4;
+    float temp_comp;
+
+    /* compensated temperature data*/
+    temp_comp = ((bme680_instance->t_fine) / 5120.0f);
+    var1 =
+        (float)((float)hum_adc) - (((float)bme680_instance->hum_cal.dig_H1 * 16.0f) +
+                                   (((float)bme680_instance->hum_cal.dig_H3 / 2.0f) * temp_comp));
+    var2 = var1 *
+           ((float)(((float)bme680_instance->hum_cal.dig_H2 / 262144.0f) *
+                    (1.0f + (((float)bme680_instance->hum_cal.dig_H4 / 16384.0f) * temp_comp) +
+                     (((float)bme680_instance->hum_cal.dig_H5 / 1048576.0f) * temp_comp * temp_comp))));
+    var3 = (float)bme680_instance->hum_cal.dig_H6 / 16384.0f;
+    var4 = (float)bme680_instance->hum_cal.dig_H7 / 2097152.0f;
+    calc_hum = var2 + ((var3 + (var4 * temp_comp)) * var2 * var2);
+    if(calc_hum > 100.0f) {
+        calc_hum = 100.0f;
+    } else if(calc_hum < 0.0f) {
+        calc_hum = 0.0f;
+    }
+
+    return calc_hum;
+}
+
+/* https://github.com/boschsensortec/BME680_driver/blob/master/bme680_defs.h */
+#define BME680_COEFF_SIZE UINT8_C(41)
+#define BME680_COEFF_ADDR1_LEN UINT8_C(25)
+#define BME680_COEFF_ADDR2_LEN UINT8_C(16)
+#define BME680_COEFF_ADDR1 UINT8_C(0x89)
+#define BME680_COEFF_ADDR2 UINT8_C(0xe1)
+#define BME680_CONCAT_BYTES(msb, lsb) (((uint16_t)msb << 8) | (uint16_t)lsb)
+#define BME680_T2_LSB_REG (1)
+#define BME680_T2_MSB_REG (2)
+#define BME680_T3_REG (3)
+#define BME680_P1_LSB_REG (5)
+#define BME680_P1_MSB_REG (6)
+#define BME680_P2_LSB_REG (7)
+#define BME680_P2_MSB_REG (8)
+#define BME680_P3_REG (9)
+#define BME680_P4_LSB_REG (11)
+#define BME680_P4_MSB_REG (12)
+#define BME680_P5_LSB_REG (13)
+#define BME680_P5_MSB_REG (14)
+#define BME680_P7_REG (15)
+#define BME680_P6_REG (16)
+#define BME680_P8_LSB_REG (19)
+#define BME680_P8_MSB_REG (20)
+#define BME680_P9_LSB_REG (21)
+#define BME680_P9_MSB_REG (22)
+#define BME680_P10_REG (23)
+#define BME680_H2_MSB_REG (25)
+#define BME680_H2_LSB_REG (26)
+#define BME680_H1_LSB_REG (26)
+#define BME680_H1_MSB_REG (27)
+#define BME680_H3_REG (28)
+#define BME680_H4_REG (29)
+#define BME680_H5_REG (30)
+#define BME680_H6_REG (31)
+#define BME680_H7_REG (32)
+#define BME680_T1_LSB_REG (33)
+#define BME680_T1_MSB_REG (34)
+#define BME680_GH2_LSB_REG (35)
+#define BME680_GH2_MSB_REG (36)
+#define BME680_GH1_REG (37)
+#define BME680_GH3_REG (38)
+#define BME680_HUM_REG_SHIFT_VAL UINT8_C(4)
+#define BME680_BIT_H1_DATA_MSK UINT8_C(0x0F)
+
+static bool BME680_readCalValues(I2CSensor* i2c_sensor) {
+    BME680_instance* bme680_instance = (BME680_instance*)i2c_sensor->sensorInstance;
+    uint8_t coeff_array[BME680_COEFF_SIZE] = {0};
+
+    if(!unitemp_i2c_readRegArray(
+           i2c_sensor, BME680_COEFF_ADDR1, BME680_COEFF_ADDR1_LEN, &coeff_array[0]))
+        return false;
+    if(!unitemp_i2c_readRegArray(
+           i2c_sensor,
+           BME680_COEFF_ADDR2,
+           BME680_COEFF_ADDR2_LEN,
+           &coeff_array[BME680_COEFF_ADDR1_LEN]))
+        return false;
+
+    /* Temperature related coefficients */
+    bme680_instance->temp_cal.dig_T1 = (uint16_t)(BME680_CONCAT_BYTES(
+        coeff_array[BME680_T1_MSB_REG], coeff_array[BME680_T1_LSB_REG]));
+    bme680_instance->temp_cal.dig_T2 = (int16_t)(BME680_CONCAT_BYTES(
+        coeff_array[BME680_T2_MSB_REG], coeff_array[BME680_T2_LSB_REG]));
+    bme680_instance->temp_cal.dig_T3 = (int8_t)(coeff_array[BME680_T3_REG]);
+
+    /* Pressure related coefficients */
+    bme680_instance->press_cal.dig_P1 = (uint16_t)(BME680_CONCAT_BYTES(
+        coeff_array[BME680_P1_MSB_REG], coeff_array[BME680_P1_LSB_REG]));
+    bme680_instance->press_cal.dig_P2 = (int16_t)(BME680_CONCAT_BYTES(
+        coeff_array[BME680_P2_MSB_REG], coeff_array[BME680_P2_LSB_REG]));
+    bme680_instance->press_cal.dig_P3 = (int8_t)coeff_array[BME680_P3_REG];
+    bme680_instance->press_cal.dig_P4 = (int16_t)(BME680_CONCAT_BYTES(
+        coeff_array[BME680_P4_MSB_REG], coeff_array[BME680_P4_LSB_REG]));
+    bme680_instance->press_cal.dig_P5 = (int16_t)(BME680_CONCAT_BYTES(
+        coeff_array[BME680_P5_MSB_REG], coeff_array[BME680_P5_LSB_REG]));
+    bme680_instance->press_cal.dig_P6 = (int8_t)(coeff_array[BME680_P6_REG]);
+    bme680_instance->press_cal.dig_P7 = (int8_t)(coeff_array[BME680_P7_REG]);
+    bme680_instance->press_cal.dig_P8 = (int16_t)(BME680_CONCAT_BYTES(
+        coeff_array[BME680_P8_MSB_REG], coeff_array[BME680_P8_LSB_REG]));
+    bme680_instance->press_cal.dig_P9 = (int16_t)(BME680_CONCAT_BYTES(
+        coeff_array[BME680_P9_MSB_REG], coeff_array[BME680_P9_LSB_REG]));
+    bme680_instance->press_cal.dig_P10 = (uint8_t)(coeff_array[BME680_P10_REG]);
+
+    /* Humidity related coefficients */
+    bme680_instance->hum_cal.dig_H1 =
+        (uint16_t)(((uint16_t)coeff_array[BME680_H1_MSB_REG] << BME680_HUM_REG_SHIFT_VAL) | (coeff_array[BME680_H1_LSB_REG] & BME680_BIT_H1_DATA_MSK));
+    bme680_instance->hum_cal.dig_H2 =
+        (uint16_t)(((uint16_t)coeff_array[BME680_H2_MSB_REG] << BME680_HUM_REG_SHIFT_VAL) | ((coeff_array[BME680_H2_LSB_REG]) >> BME680_HUM_REG_SHIFT_VAL));
+    bme680_instance->hum_cal.dig_H3 = (int8_t)coeff_array[BME680_H3_REG];
+    bme680_instance->hum_cal.dig_H4 = (int8_t)coeff_array[BME680_H4_REG];
+    bme680_instance->hum_cal.dig_H5 = (int8_t)coeff_array[BME680_H5_REG];
+    bme680_instance->hum_cal.dig_H6 = (uint8_t)coeff_array[BME680_H6_REG];
+    bme680_instance->hum_cal.dig_H7 = (int8_t)coeff_array[BME680_H7_REG];
+
+    /* Gas heater related coefficients */
+    bme680_instance->gas_cal.dig_GH1 = (int8_t)coeff_array[BME680_GH1_REG];
+    bme680_instance->gas_cal.dig_GH2 = (int16_t)(BME680_CONCAT_BYTES(
+        coeff_array[BME680_GH2_MSB_REG], coeff_array[BME680_GH2_LSB_REG]));
+    bme680_instance->gas_cal.dig_GH3 = (int8_t)coeff_array[BME680_GH3_REG];
+
+#ifdef UNITEMP_DEBUG
+    FURI_LOG_D(
+        APP_NAME,
+        "Sensor BME680 T1-T3: %d, %d, %d",
+        bme680_instance->temp_cal.dig_T1,
+        bme680_instance->temp_cal.dig_T2,
+        bme680_instance->temp_cal.dig_T3);
+
+    FURI_LOG_D(
+        APP_NAME,
+        "Sensor BME680: P1-P10: %d, %d, %d, %d, %d, %d, %d, %d, %d, %d",
+        bme680_instance->press_cal.dig_P1,
+        bme680_instance->press_cal.dig_P2,
+        bme680_instance->press_cal.dig_P3,
+        bme680_instance->press_cal.dig_P4,
+        bme680_instance->press_cal.dig_P5,
+        bme680_instance->press_cal.dig_P6,
+        bme680_instance->press_cal.dig_P7,
+        bme680_instance->press_cal.dig_P8,
+        bme680_instance->press_cal.dig_P9,
+        bme680_instance->press_cal.dig_P10);
+
+    FURI_LOG_D(
+        APP_NAME,
+        "Sensor BME680: H1-H7: %d, %d, %d, %d, %d, %d, %d",
+        bme680_instance->hum_cal.dig_H1,
+        bme680_instance->hum_cal.dig_H2,
+        bme680_instance->hum_cal.dig_H3,
+        bme680_instance->hum_cal.dig_H4,
+        bme680_instance->hum_cal.dig_H5,
+        bme680_instance->hum_cal.dig_H6,
+        bme680_instance->hum_cal.dig_H7);
+
+    FURI_LOG_D(
+        APP_NAME,
+        "Sensor BME680 GH1-GH3: %d, %d, %d",
+        bme680_instance->gas_cal.dig_GH1,
+        bme680_instance->gas_cal.dig_GH2,
+        bme680_instance->gas_cal.dig_GH3);
+
+#endif
+
+    bme680_instance->last_cal_update_time = furi_get_tick();
+    return true;
+}
+static bool BME680_isMeasuring(Sensor* sensor) {
+    I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
+    return (bool)(unitemp_i2c_readReg(i2c_sensor, BME680_REG_STATUS) & 0x20);
+}
+
+bool unitemp_BME680_alloc(Sensor* sensor, char* args) {
+    UNUSED(args);
+    I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
+    BME680_instance* bme680_instance = malloc(sizeof(BME680_instance));
+    if(bme680_instance == NULL) {
+        FURI_LOG_E(APP_NAME, "Failed to allocation sensor %s instance", sensor->name);
+        return false;
+    }
+
+    if(sensor->type == &BME680) bme680_instance->chip_id = BME680_ID;
+
+    i2c_sensor->sensorInstance = bme680_instance;
+
+    i2c_sensor->minI2CAdr = BME680_I2C_ADDR_MIN;
+    i2c_sensor->maxI2CAdr = BME680_I2C_ADDR_MAX;
+    return true;
+}
+
+bool unitemp_BME680_init(Sensor* sensor) {
+    I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
+    //Перезагрузка
+    unitemp_i2c_writeReg(i2c_sensor, 0xE0, 0xB6);
+    //Чтение ID датчика
+    uint8_t id = unitemp_i2c_readReg(i2c_sensor, 0xD0);
+    if(id != BME680_ID) {
+        FURI_LOG_E(
+            APP_NAME,
+            "Sensor %s returned wrong ID 0x%02X, expected 0x%02X",
+            sensor->name,
+            id,
+            BME680_ID);
+        return false;
+    }
+
+    unitemp_i2c_writeReg(
+        i2c_sensor,
+        BME680_REG_CTRL_HUM,
+        (unitemp_i2c_readReg(i2c_sensor, BME680_REG_CTRL_HUM) & ~7) | BME680_HUM_OVERSAMPLING_1);
+    unitemp_i2c_writeReg(
+        i2c_sensor,
+        BME680_REG_CTRL_MEAS,
+        BME680_TEMP_OVERSAMPLING_2 | BME680_PRESS_OVERSAMPLING_4 | BME680_MODE_FORCED);
+    //Настройка периода опроса и фильтрации значений
+    unitemp_i2c_writeReg(
+        i2c_sensor, BME680_REG_CONFIG, BME680_FILTER_COEFF_16 | BME680_SPI_3W_DISABLE);
+    //Чтение калибровочных значений
+    if(!BME680_readCalValues(i2c_sensor)) {
+        FURI_LOG_E(APP_NAME, "Failed to read calibration values sensor %s", sensor->name);
+        return false;
+    }
+    return true;
+}
+
+bool unitemp_BME680_deinit(Sensor* sensor) {
+    I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
+    //Перевод в сон
+    unitemp_i2c_writeReg(i2c_sensor, BME680_REG_CTRL_MEAS, BME680_MODE_SLEEP);
+    return true;
+}
+
+UnitempStatus unitemp_BME680_update(Sensor* sensor) {
+    I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
+    BME680_instance* instance = i2c_sensor->sensorInstance;
+
+    uint32_t t = furi_get_tick();
+
+    uint8_t buff[3];
+    //Проверка инициализированности датчика
+    unitemp_i2c_readRegArray(i2c_sensor, 0xF4, 2, buff);
+    if(buff[0] == 0) {
+        FURI_LOG_W(APP_NAME, "Sensor %s is not initialized!", sensor->name);
+        return UT_SENSORSTATUS_ERROR;
+    }
+
+    while(BME680_isMeasuring(sensor)) {
+        if(furi_get_tick() - t > 100) {
+            return UT_SENSORSTATUS_TIMEOUT;
+        }
+    }
+
+    if(furi_get_tick() - instance->last_cal_update_time > BOSCH_CAL_UPDATE_INTERVAL) {
+        BME680_readCalValues(i2c_sensor);
+    }
+
+    if(!unitemp_i2c_readRegArray(i2c_sensor, 0x1F, 3, buff)) return UT_SENSORSTATUS_TIMEOUT;
+    int32_t adc_P = ((int32_t)buff[0] << 12) | ((int32_t)buff[1] << 4) | ((int32_t)buff[2] >> 4);
+    if(!unitemp_i2c_readRegArray(i2c_sensor, 0x22, 3, buff)) return UT_SENSORSTATUS_TIMEOUT;
+    int32_t adc_T = ((int32_t)buff[0] << 12) | ((int32_t)buff[1] << 4) | ((int32_t)buff[2] >> 4);
+    if(!unitemp_i2c_readRegArray(i2c_sensor, 0x25, 2, buff)) return UT_SENSORSTATUS_TIMEOUT;
+    int32_t adc_H = ((uint16_t)buff[0] << 8) | buff[1];
+
+    sensor->temp = BME680_compensate_temperature(i2c_sensor, adc_T);
+    sensor->pressure = BME680_compensate_pressure(i2c_sensor, adc_P);
+    sensor->hum = BME680_compensate_humidity(i2c_sensor, adc_H);
+
+    return UT_SENSORSTATUS_OK;
+}
+
+bool unitemp_BME680_free(Sensor* sensor) {
+    I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
+    free(i2c_sensor->sensorInstance);
+    return true;
+}

sensors/BME680.h

@@ -0,0 +1,111 @@
+/*
+    Unitemp - Universal temperature reader
+    Copyright (C) 2022  Victor Nikitchuk (https://github.com/quen0n)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+#ifndef UNITEMP_BME680
+#define UNITEMP_BME680
+
+#include "../unitemp.h"
+#include "../Sensors.h"
+#include "../interfaces/I2CSensor.h"
+
+typedef struct {
+    uint16_t dig_T1;
+    int16_t dig_T2;
+    int16_t dig_T3;
+} BME680_temp_cal;
+
+typedef struct {
+    uint16_t dig_GH1;
+    int16_t dig_GH2;
+    int16_t dig_GH3;
+} BME680_gas_cal;
+
+typedef struct {
+    uint16_t dig_P1;
+    int16_t dig_P2;
+    int16_t dig_P3;
+    int16_t dig_P4;
+    int16_t dig_P5;
+    int16_t dig_P6;
+    int16_t dig_P7;
+    int16_t dig_P8;
+    int16_t dig_P9;
+    int16_t dig_P10;
+} BME680_press_cal;
+
+typedef struct {
+    uint8_t dig_H1;
+    int16_t dig_H2;
+    uint8_t dig_H3;
+    int16_t dig_H4;
+    int16_t dig_H5;
+    int8_t dig_H6;
+    int8_t dig_H7;
+} BME680_hum_cal;
+
+typedef struct {
+    //Калибровочные значения температуры
+    BME680_temp_cal temp_cal;
+    //Калибровочные значения давления
+    BME680_press_cal press_cal;
+    //Калибровочные значения влажности воздуха
+    BME680_hum_cal hum_cal;
+    BME680_gas_cal gas_cal;
+    //Время последнего обновления калибровочных значений
+    uint32_t last_cal_update_time;
+    //Индификатор датчика
+    uint8_t chip_id;
+    //Корректировочное значение температуры
+    int32_t t_fine;
+} BME680_instance;
+
+extern const SensorType BMP280;
+extern const SensorType BME680;
+/**
+ * @brief Выделение памяти и установка начальных значений датчика BMP280
+ * @param sensor Указатель на создаваемый датчик
+ * @return Истина при успехе
+ */
+bool unitemp_BME680_alloc(Sensor* sensor, char* args);
+
+/**
+ * @brief Инициализации датчика BMP280
+ * @param sensor Указатель на датчик
+ * @return Истина если инициализация упспешная
+ */
+bool unitemp_BME680_init(Sensor* sensor);
+
+/**
+ * @brief Деинициализация датчика
+ * @param sensor Указатель на датчик
+ */
+bool unitemp_BME680_deinit(Sensor* sensor);
+
+/**
+ * @brief Обновление значений из датчика
+ * @param sensor Указатель на датчик
+ * @return Статус опроса датчика
+ */
+UnitempStatus unitemp_BME680_update(Sensor* sensor);
+
+/**
+ * @brief Высвободить память датчика
+ * @param sensor Указатель на датчик
+ */
+bool unitemp_BME680_free(Sensor* sensor);
+
+#endif