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Please, find software code here. We use BME680. ... View more

static bsec_library_return_t bme68x_bsec_update_subscription(float sample_rate) { bsec_sensor_configuration_t requested_virtual_sensors[8]; uint8_t n_requested_virtual_sensors = 8; uint8_t n_required_sensor_settings = BSEC_MAX_PHYSICAL_SENSOR; bsec_library_return_t status = BSEC_OK; /* note: Virtual sensors as desired to be added here */ requested_virtual_sensors[0].sensor_id = BSEC_OUTPUT_IAQ; requested_virtual_sensors[0].sample_rate = sample_rate; requested_virtual_sensors[1].sensor_id = BSEC_OUTPUT_STATIC_IAQ; requested_virtual_sensors[1].sample_rate = sample_rate; requested_virtual_sensors[2].sensor_id = BSEC_OUTPUT_CO2_EQUIVALENT; requested_virtual_sensors[2].sample_rate = sample_rate; requested_virtual_sensors[3].sensor_id = BSEC_OUTPUT_BREATH_VOC_EQUIVALENT; requested_virtual_sensors[3].sample_rate = sample_rate; requested_virtual_sensors[4].sensor_id = BSEC_OUTPUT_RAW_PRESSURE; requested_virtual_sensors[4].sample_rate = sample_rate; requested_virtual_sensors[5].sensor_id = BSEC_OUTPUT_RAW_TEMPERATURE; requested_virtual_sensors[5].sample_rate = sample_rate; requested_virtual_sensors[6].sensor_id = BSEC_OUTPUT_RAW_HUMIDITY; requested_virtual_sensors[6].sample_rate = sample_rate; requested_virtual_sensors[7].sensor_id = BSEC_OUTPUT_RAW_GAS; requested_virtual_sensors[7].sample_rate = sample_rate; /* Call bsec_update_subscription() to enable/disable the requested virtual sensors */ status = bsec_update_subscription(requested_virtual_sensors, n_requested_virtual_sensors, required_sensor_settings, &n_required_sensor_settings); return status; } ... View more

void StartBME68XTask(void const * argument) { return_values_init ret; struct bme68x_dev bme_dev; memset(&bme_dev,0,sizeof(bme_dev)); /* Call to the function which initializes the BSEC library * Switch on low-power mode and provide no temperature offset */ #if defined(BME68X_OUTPUT_GAS_ESTIMATE) #if defined(USE_I2C_INTERFACE) ret = bsec_iot_init(BSEC_SAMPLE_RATE_SCAN, 0.0f, SensorAPI_I2Cx_Write, SensorAPI_I2Cx_Read, bst_delay_us, state_load, config_load, bme_dev); #elif defined(USE_SPI_INTERFACE) ret = bsec_iot_init(BSEC_SAMPLE_RATE_SCAN, 0.0f, SensorAPI_SPIx_Write, SensorAPI_SPIx_Read, bst_delay_us, state_load, config_load, bme_dev); #endif #elif defined(BME68X_OUTPUT_GAS_IAQ) #if defined(USE_I2C_INTERFACE) ret = bsec_iot_init(BSEC_SAMPLE_RATE_LP, 0.0f, SensorAPI_I2Cx_Write, SensorAPI_I2Cx_Read, bst_delay_us, state_load, config_load, bme_dev); #elif defined(USE_SPI_INTERFACE) ret = bsec_iot_init(BSEC_SAMPLE_RATE_LP, 0.0f, bus_write, bus_read, sleep_n, state_load, config_load, bme_dev); #endif #endif if (ret.bme68x_status) { /* Could not intialize BME68x */ printf("Could not intialize BME68x,ret.bme68x_status=%d\r\n", ret.bme68x_status); while(1); } else if (ret.bsec_status) { /* Could not intialize BSEC library */ printf("Could not intialize BSEC library,ret.bsec_status=%d\r\n", ret.bsec_status); while(1); } #if defined(BME68X_OUTPUT_GAS_ESTIMATE) /* Call to endless loop function which reads and processes data based on sensor settings */ /* State is saved every 10.000 samples, which means every 10.000 * 3 secs = 500 minutes */ bsec_iot_loop(bst_delay_us, get_timestamp_us, output_ready, state_save, 10000); #elif defined(BME68X_OUTPUT_GAS_IAQ) bsec_iot_loop(sleep_n, get_timestamp_us, output_iaq_ready, state_save, 10000); #endif } ... View more