uploaded 1 week ago
ESP32 espressif IoT development framework (esp-idf) compatible component for Bosch BMP390 humidity, temperature, pressure, and gas I2C sensors.
readme
# Bosch BME680 Sensor
[](/LICENSE)
[](https://visualstudio.microsoft.com)
[](https://platformio.org/)
[](https://registry.platformio.org/libraries/k0i05/esp_bme680)
[](https://components.espressif.com/components/k0i05/esp_bme680)
This ESP32 espressif IoT development framework (esp-idf) i2c peripheral driver was developed for the Bosch BME680 pressure, temperature, humidity and gas sensor. Information on features and functionality are documented and can be found in the `bme680.h` header file and in the `documentation` folder.
## Repository
The component is hosted on github and is located here: <https://github.com/K0I05/ESP32-S3_ESP-IDF_COMPONENTS/tree/main/components/peripherals/i2c/esp_bme680>
## General Usage
To get started, simply copy the component to your project's `components` folder and reference the `bme680.h` header file as an include. The component includes documentation for the peripheral such as the datasheet, application notes, and/or user manual where applicable.
```text
components
└── esp_bme680
├── CMakeLists.txt
├── README.md
├── LICENSE
├── idf_component.yml
├── library.json
├── documentation
│ └── datasheets, etc.
├── include
│ └── bme680_version.h
│ └── bme680.h
└── bme680.c
```
## Basic Example
Once a driver instance is instantiated the sensor is ready for usage as shown in the below example. This basic implementation of the driver utilizes default configuration settings and makes a measurement request from the sensor at user defined interval and prints the results.
```c
#include <bme680.h>
static inline void print_registers(bme680_handle_t handle) {
/* configuration registers */
bme680_control_measurement_register_t ctrl_meas_reg;
bme680_control_humidity_register_t ctrl_humi_reg;
bme680_config_register_t config_reg;
bme680_control_gas0_register_t ctrl_gas0_reg;
bme680_control_gas1_register_t ctrl_gas1_reg;
/* attempt to read control humidity register */
bme680_get_control_humidity_register(handle, &ctrl_humi_reg);
/* attempt to read control measurement register */
bme680_get_control_measurement_register(handle, &ctrl_meas_reg);
/* attempt to read configuration register */
bme680_get_configuration_register(handle, &config_reg);
/* attempt to read control gas 0 register */
bme680_get_control_gas0_register(handle, &ctrl_gas0_reg);
/* attempt to read control gas 1 register */
bme680_get_control_gas1_register(handle, &ctrl_gas1_reg);
ESP_LOGI(APP_TAG, "Variant Id (0x%02x): %s", handle->variant_id,uint8_to_binary(handle->variant_id));
ESP_LOGI(APP_TAG, "Configuration (0x%02x): %s", config_reg.reg, uint8_to_binary(config_reg.reg));
ESP_LOGI(APP_TAG, "Control Measurement (0x%02x): %s", ctrl_meas_reg.reg, uint8_to_binary(ctrl_meas_reg.reg));
ESP_LOGI(APP_TAG, "Control Humidity (0x%02x): %s", ctrl_humi_reg.reg, uint8_to_binary(ctrl_humi_reg.reg));
ESP_LOGI(APP_TAG, "Control Gas 0 (0x%02x): %s", ctrl_gas0_reg.reg, uint8_to_binary(ctrl_gas0_reg.reg));
ESP_LOGI(APP_TAG, "Control Gas 1 (0x%02x): %s", ctrl_gas1_reg.reg, uint8_to_binary(ctrl_gas1_reg.reg));
}
void i2c0_bme680_task( void *pvParameters ) {
// initialize the xLastWakeTime variable with the current time.
TickType_t last_wake_time = xTaskGetTickCount ();
//
// initialize i2c device configuration
bme680_config_t dev_cfg = I2C_BME680_CONFIG_DEFAULT;
bme680_handle_t dev_hdl;
//
// init device
bme680_init(i2c0_bus_hdl, &dev_cfg, &dev_hdl);
if (dev_hdl == NULL) {
ESP_LOGE(APP_TAG, "bme680 handle init failed");
assert(dev_hdl);
}
print_registers(dev_hdl);
// task loop entry point
for ( ;; ) {
ESP_LOGI(APP_TAG, "######################## BME680 - START #########################");
//
// handle sensor
bme680_data_t data;
esp_err_t result = bme680_get_measurements(dev_hdl, &data);
if(result != ESP_OK) {
ESP_LOGE(APP_TAG, "bme680 device read failed (%s)", esp_err_to_name(result));
} else {
data.barometric_pressure = data.barometric_pressure / 100;
ESP_LOGI(APP_TAG, "air temperature: %.2f °C", data.air_temperature);
ESP_LOGI(APP_TAG, "dewpoint temperature:%.2f °C", data.dewpoint_temperature);
ESP_LOGI(APP_TAG, "relative humidity: %.2f %%", data.relative_humidity);
ESP_LOGI(APP_TAG, "barometric pressure: %.2f hPa", data.barometric_pressure);
ESP_LOGI(APP_TAG, "gas resistance: %.2f kOhms", data.gas_resistance/1000);
ESP_LOGI(APP_TAG, "iaq score: %u (%s)", data.iaq_score, bme680_iaq_air_quality_to_string(data.iaq_score));
}
//
ESP_LOGI(APP_TAG, "######################## BME680 - END ###########################");
//
//
// pause the task per defined wait period
vTaskDelaySecUntil( &last_wake_time, I2C0_TASK_SAMPLING_RATE );
}
//
// free resources
bme680_delete( dev_hdl );
vTaskDelete( NULL );
}
```
Copyright (c) 2024 Eric Gionet (<gionet.c.eric@gmail.com>)
Links
Supports all targets
Maintainer
- Eric Gionet <gionet.c.eric@gmail.com>
License: MIT
To add this component to your project, run:
or
download archive
idf.py add-dependency "k0i05/esp_bme680^1.2.1"
Stats
-
Archive size ~ 1.30 MB
-
Downloaded in total 6 times
-
This version: 6 times
Badge
