mirror of
https://github.com/alexandrebobkov/ESP-Nodes.git
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mqtt
This commit is contained in:
@@ -1 +0,0 @@
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873d97d0bd30004f45d1653f078a4bafe39c1767e57d4bae0f0a13bc3a4d5e3d
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@@ -1,13 +0,0 @@
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# ChangeLog
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## v0.1.1 - 2024-12-23
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### Bug Fixes:
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* Fix the issue in README.md where the usage example for bme280 lacks the default initialization.
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## v0.1.0 - 2024-11-5
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### Enhancements:
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* Initial version
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@@ -1 +0,0 @@
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{"version": "1.0", "algorithm": "sha256", "created_at": "2025-05-21T17:09:18.488972+00:00", "files": [{"path": "CMakeLists.txt", "size": 160, "hash": "b9af3a241cecba82dda3b44e32c70b1aac28890f41eb00768f518a000f163357"}, {"path": "CHANGELOG.md", "size": 211, "hash": "d61f738a9a542e7c0f7d69fcc0b14e20c15d96688f0e4e067c943e853e3657e8"}, {"path": "idf_component.yml", "size": 580, "hash": "71fa62fa58af333761e45146271e5ed3c90e7e845740391711bfe276266b9131"}, {"path": "README.md", "size": 1713, "hash": "51df9e655bb500962a5736b65e49e6920d713216556c8bbf5d63b3132e1d3862"}, {"path": "license.txt", "size": 11358, "hash": "cfc7749b96f63bd31c3c42b5c471bf756814053e847c10f3eb003417bc523d30"}, {"path": "bme280.c", "size": 13819, "hash": "47aac27b35df43fdad8551d1f8759d774362d291859685a77a331aa6433eb163"}, {"path": "include/bme280.h", "size": 10161, "hash": "043eda239a4686220cff149054b678bd736bf7c5f2edd290c7c703c8a1c156f9"}, {"path": "test_apps/CMakeLists.txt", "size": 350, "hash": "02be4ce8d0c8034408017c3948d13d93d3be6fdc40ada18906a5f15fc4ef0dad"}, {"path": "test_apps/sdkconfig.defaults", "size": 213, "hash": "9a34a6cb08c49ec24007587e0c5d492f44b5a862d9c0f583cf9f6f643669b564"}, {"path": "test_apps/main/CMakeLists.txt", "size": 143, "hash": "802c3b217fc1bd9ed8c615353f70d9084caf0b4216288e05fc18af11e6bf7abf"}, {"path": "test_apps/main/bme280_test.c", "size": 2447, "hash": "ee63d7fbd09167de421eb0c416acb6a9f0da44789f7d453b603b3fd74989cf4c"}]}
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@@ -1,5 +0,0 @@
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idf_component_register(SRCS "bme280.c"
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INCLUDE_DIRS include)
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include(package_manager)
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cu_pkg_define_version(${CMAKE_CURRENT_LIST_DIR})
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@@ -1,51 +0,0 @@
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# Component: BME280
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The BME280 is as combined digital humidity, pressure and temperature sensor based on proven sensing principles. The sensor module is housed in an extremely compact metal-lid LGA package with a footprint of only 2.5 × 2.5 mm² with a height of 0.93 mm. Its small dimensions and its low power consumption allow the implementation in battery driven devices such as handsets, GPS modules or watches.
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## Add component to your project
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Please use the component manager command `add-dependency` to add the `bme280` to your project's dependency, during the `CMake` step the component will be downloaded automatically
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```
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idf.py add-dependency "espressif/bme280=*"
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```
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## Example of BME280 usage
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Pin assignment:
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* master:
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* GPIO2 is assigned as the clock signal of i2c master port
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* GPIO1 is assigned as the data signal of i2c master port
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* Connection:
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* connect sda of sensor with GPIO1
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* connect scl of sensor with GPIO2
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```c
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static i2c_bus_handle_t i2c_bus = NULL;
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static bme280_handle_t bme280 = NULL;
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//Step1: Init I2C bus
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i2c_config_t conf = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = I2C_MASTER_SDA_IO,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.scl_io_num = I2C_MASTER_SCL_IO,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = I2C_MASTER_FREQ_HZ,
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};
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i2c_bus = i2c_bus_create(I2C_MASTER_NUM, &conf);
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//Step2: Init bme280
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bme280 = bme280_create(i2c_bus, BME280_I2C_ADDRESS_DEFAULT);
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bme280_default_init(bme280);
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//Step3: Read temperature, humidity and pressure
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float temperature = 0.0, humidity = 0.0, pressure = 0.0;
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bme280_read_temperature(bme280, &temperature);
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bme280_read_humidity(bme280, &humidity);
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bme280_read_pressure(bme280, &pressure);
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```
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@@ -1,372 +0,0 @@
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/*
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* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdio.h>
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#include "freertos/FreeRTOS.h"
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#include "i2c_bus.h"
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#include "bme280.h"
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#include "math.h"
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#include "esp_log.h"
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bme280_handle_t bme280_create(i2c_bus_handle_t bus, uint8_t dev_addr)
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{
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bme280_dev_t *sens = (bme280_dev_t *) calloc(1, sizeof(bme280_dev_t));
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sens->i2c_dev = i2c_bus_device_create(bus, dev_addr, i2c_bus_get_current_clk_speed(bus));
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if (sens->i2c_dev == NULL) {
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free(sens);
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return NULL;
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}
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sens->dev_addr = dev_addr;
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return (bme280_handle_t)sens;
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}
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esp_err_t bme280_delete(bme280_handle_t *sensor)
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{
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if (*sensor == NULL) {
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return ESP_OK;
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}
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bme280_dev_t *sens = (bme280_dev_t *)(*sensor);
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i2c_bus_device_delete(&sens->i2c_dev);
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free(sens);
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*sensor = NULL;
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return ESP_OK;
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}
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static esp_err_t bme280_read_uint16(bme280_handle_t sensor, uint8_t addr, uint16_t *data)
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{
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esp_err_t ret = ESP_FAIL;
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bme280_dev_t *sens = (bme280_dev_t *) sensor;
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uint8_t data0, data1;
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if (i2c_bus_read_byte(sens->i2c_dev, addr, &data0) != ESP_OK) {
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return ret;
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}
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if (i2c_bus_read_byte(sens->i2c_dev, addr + 1, &data1) != ESP_OK) {
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return ret;
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}
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*data = (data0 << 8) | data1;
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return ESP_OK;
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}
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static esp_err_t bme280_read_uint16_le(bme280_handle_t sensor, uint8_t addr, uint16_t *data)
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{
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esp_err_t ret = ESP_FAIL;
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bme280_dev_t *sens = (bme280_dev_t *) sensor;
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uint8_t data0, data1;
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if (i2c_bus_read_byte(sens->i2c_dev, addr, &data0) != ESP_OK) {
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return ret;
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}
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if (i2c_bus_read_byte(sens->i2c_dev, addr + 1, &data1) != ESP_OK) {
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return ret;
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}
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*data = (data1 << 8) | data0;
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return ESP_OK;
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}
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unsigned int bme280_getconfig(bme280_handle_t sensor)
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{
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bme280_dev_t *sens = (bme280_dev_t *) sensor;
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return (sens->config_t.t_sb << 5) | (sens->config_t.filter << 3) | sens->config_t.spi3w_en;
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}
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unsigned int bme280_getctrl_meas(bme280_handle_t sensor)
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{
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bme280_dev_t *sens = (bme280_dev_t *) sensor;
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return (sens->ctrl_meas_t.osrs_t << 5) | (sens->ctrl_meas_t.osrs_p << 3) | sens->ctrl_meas_t.mode;
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}
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unsigned int bme280_getctrl_hum(bme280_handle_t sensor)
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{
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bme280_dev_t *sens = (bme280_dev_t *) sensor;
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return (sens->ctrl_hum_t.osrs_h);
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}
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bool bme280_is_reading_calibration(bme280_handle_t sensor)
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{
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uint8_t rstatus = 0;
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bme280_dev_t *sens = (bme280_dev_t *) sensor;
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if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_STATUS, &rstatus) != ESP_OK) {
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return false;
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}
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return (rstatus & (1 << 0)) != 0;
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}
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esp_err_t bme280_read_coefficients(bme280_handle_t sensor)
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{
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uint8_t data = 0;
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uint8_t data1 = 0;
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uint16_t data16 = 0;
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bme280_dev_t *sens = (bme280_dev_t *) sensor;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_T1, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_t1 = data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_T2, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_t2 = (int16_t) data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_T3, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_t3 = (int16_t) data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_P1, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_p1 = data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_P2, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_p2 = (int16_t) data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_P3, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_p3 = (int16_t) data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_P4, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_p4 = (int16_t) data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_P5, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_p5 = (int16_t) data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_P6, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_p6 = (int16_t) data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_P7, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_p7 = (int16_t) data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_P8, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_p8 = (int16_t) data16;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_P9, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_p9 = (int16_t) data16;
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if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_DIG_H1, &data) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_h1 = data;
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if (bme280_read_uint16_le(sensor, BME280_REGISTER_DIG_H2, &data16) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_h2 = (int16_t) data16;
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if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_DIG_H3, &data) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_h3 = data;
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if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_DIG_H4, &data) != ESP_OK) {
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return ESP_FAIL;
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}
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if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_DIG_H4 + 1, &data1) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_h4 = (data << 4) | (data1 & 0xF);
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if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_DIG_H5 + 1, &data) != ESP_OK) {
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return ESP_FAIL;
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}
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if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_DIG_H5, &data1) != ESP_OK) {
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return ESP_FAIL;
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}
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sens->data_t.dig_h5 = (data << 4) | (data1 >> 4);
|
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if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_DIG_H6, &data) != ESP_OK) {
|
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return ESP_FAIL;
|
||||
}
|
||||
sens->data_t.dig_h6 = (int8_t) data;
|
||||
return ESP_OK;
|
||||
}
|
||||
|
||||
esp_err_t bme280_set_sampling(bme280_handle_t sensor, bme280_sensor_mode mode, bme280_sensor_sampling tempSampling, bme280_sensor_sampling pressSampling, bme280_sensor_sampling humSampling, bme280_sensor_filter filter, bme280_standby_duration duration)
|
||||
{
|
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bme280_dev_t *sens = (bme280_dev_t *) sensor;
|
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sens->ctrl_meas_t.mode = mode;
|
||||
sens->ctrl_meas_t.osrs_t = tempSampling;
|
||||
sens->ctrl_meas_t.osrs_p = pressSampling;
|
||||
sens->ctrl_hum_t.osrs_h = humSampling;
|
||||
sens->config_t.filter = filter;
|
||||
sens->config_t.t_sb = duration;
|
||||
// you must make sure to also set REGISTER_CONTROL after setting the
|
||||
// CONTROLHUMID register, otherwise the values won't be applied (see DS 5.4.3)
|
||||
if (i2c_bus_write_byte(sens->i2c_dev, BME280_REGISTER_CONTROLHUMID, bme280_getctrl_hum(sensor)) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
if (i2c_bus_write_byte(sens->i2c_dev, BME280_REGISTER_CONFIG, bme280_getconfig(sensor)) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
if (i2c_bus_write_byte(sens->i2c_dev, BME280_REGISTER_CONTROL, bme280_getctrl_meas(sensor)) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
return ESP_OK;
|
||||
}
|
||||
|
||||
esp_err_t bme280_default_init(bme280_handle_t sensor)
|
||||
{
|
||||
// check if sensor, i.e. the chip ID is correct
|
||||
uint8_t chipid = 0;
|
||||
bme280_dev_t *sens = (bme280_dev_t *) sensor;
|
||||
if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_CHIPID, &chipid) != ESP_OK) {
|
||||
ESP_LOGI("BME280:", "bme280_default_init->bme280_read_byte ->BME280_REGISTER_CHIPID failed!!!!:%x", chipid);
|
||||
return ESP_FAIL;
|
||||
}
|
||||
if (chipid != BME280_DEFAULT_CHIPID) {
|
||||
ESP_LOGI("BME280:", "bme280_default_init->BME280_DEFAULT_CHIPID:%x", chipid);
|
||||
return ESP_FAIL;
|
||||
}
|
||||
// reset the sens using soft-reset, this makes sure the IIR is off, etc.
|
||||
if (i2c_bus_write_byte(sens->i2c_dev, BME280_REGISTER_SOFTRESET, 0xB6) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
// wait for chip to wake up.
|
||||
vTaskDelay(300 / portTICK_RATE_MS);
|
||||
// if chip is still reading calibration, delay
|
||||
while (bme280_is_reading_calibration(sensor)) {
|
||||
vTaskDelay(100 / portTICK_RATE_MS);
|
||||
}
|
||||
if (bme280_read_coefficients(sensor) != ESP_OK) { // read trimming parameters, see DS 4.2.2
|
||||
return ESP_FAIL;
|
||||
}
|
||||
if (bme280_set_sampling(sensor, BME280_MODE_NORMAL, BME280_SAMPLING_X16, BME280_SAMPLING_X16, BME280_SAMPLING_X16, BME280_FILTER_OFF, BME280_STANDBY_MS_0_5) != ESP_OK) { // use defaults
|
||||
return ESP_FAIL;
|
||||
}
|
||||
return ESP_OK;
|
||||
}
|
||||
|
||||
esp_err_t bme280_take_forced_measurement(bme280_handle_t sensor)
|
||||
{
|
||||
uint8_t data = 0;
|
||||
bme280_dev_t *sens = (bme280_dev_t *) sensor;
|
||||
if (sens->ctrl_meas_t.mode == BME280_MODE_FORCED) {
|
||||
// set to forced mode, i.e. "take next measurement"
|
||||
if (i2c_bus_write_byte(sens->i2c_dev, BME280_REGISTER_CONTROL, bme280_getctrl_meas(sensor)) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
// wait until measurement has been completed, otherwise we would read, the values from the last measurement
|
||||
if (i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_STATUS, &data) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
while (data & 0x08) {
|
||||
i2c_bus_read_byte(sens->i2c_dev, BME280_REGISTER_STATUS, &data);
|
||||
vTaskDelay(10 / portTICK_RATE_MS);
|
||||
}
|
||||
}
|
||||
return ESP_OK;
|
||||
}
|
||||
|
||||
esp_err_t bme280_read_temperature(bme280_handle_t sensor, float *temperature)
|
||||
{
|
||||
int32_t var1, var2;
|
||||
uint8_t data[3] = { 0 };
|
||||
bme280_dev_t *sens = (bme280_dev_t *) sensor;
|
||||
if (i2c_bus_read_bytes(sens->i2c_dev, BME280_REGISTER_TEMPDATA, 3, data) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
int32_t adc_T = (data[0] << 16) | (data[1] << 8) | data[2];
|
||||
if (adc_T == 0x800000) { // value in case temp measurement was disabled
|
||||
return ESP_FAIL;
|
||||
}
|
||||
adc_T >>= 4;
|
||||
|
||||
var1 = ((((adc_T >> 3) - ((int32_t) sens->data_t.dig_t1 << 1)))
|
||||
* ((int32_t) sens->data_t.dig_t2)) >> 11;
|
||||
|
||||
var2 = (((((adc_T >> 4) - ((int32_t) sens->data_t.dig_t1))
|
||||
* ((adc_T >> 4) - ((int32_t) sens->data_t.dig_t1))) >> 12)
|
||||
* ((int32_t) sens->data_t.dig_t3)) >> 14;
|
||||
|
||||
sens->t_fine = var1 + var2;
|
||||
*temperature = ((sens->t_fine * 5 + 128) >> 8) / 100.0;
|
||||
return ESP_OK;
|
||||
}
|
||||
|
||||
esp_err_t bme280_read_pressure(bme280_handle_t sensor, float *pressure)
|
||||
{
|
||||
int64_t var1, var2, p;
|
||||
uint8_t data[3] = { 0 };
|
||||
bme280_dev_t *sens = (bme280_dev_t *) sensor;
|
||||
float temp = 0.0;
|
||||
if (bme280_read_temperature(sensor, &temp) != ESP_OK) {
|
||||
// must be done first to get t_fine
|
||||
return ESP_FAIL;
|
||||
}
|
||||
if (i2c_bus_read_bytes(sens->i2c_dev, BME280_REGISTER_PRESSUREDATA, 3, data) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
int32_t adc_P = (data[0] << 16) | (data[1] << 8) | data[2];
|
||||
if (adc_P == 0x800000) { // value in case pressure measurement was disabled
|
||||
return ESP_FAIL;
|
||||
}
|
||||
adc_P >>= 4;
|
||||
var1 = ((int64_t) sens->t_fine) - 128000;
|
||||
var2 = var1 * var1 * (int64_t) sens->data_t.dig_p6;
|
||||
var2 = var2 + ((var1 * (int64_t) sens->data_t.dig_p5) << 17);
|
||||
var2 = var2 + (((int64_t) sens->data_t.dig_p4) << 35);
|
||||
var1 = ((var1 * var1 * (int64_t) sens->data_t.dig_p3) >> 8) + ((var1 * (int64_t) sens->data_t.dig_p2) << 12);
|
||||
var1 = (((((int64_t) 1) << 47) + var1)) * ((int64_t) sens->data_t.dig_p1) >> 33;
|
||||
if (var1 == 0) {
|
||||
return ESP_FAIL; // avoid exception caused by division by zero
|
||||
}
|
||||
p = 1048576 - adc_P;
|
||||
p = (((p << 31) - var2) * 3125) / var1;
|
||||
var1 = (((int64_t) sens->data_t.dig_p9) * (p >> 13) * (p >> 13)) >> 25;
|
||||
var2 = (((int64_t) sens->data_t.dig_p8) * p) >> 19;
|
||||
p = ((p + var1 + var2) >> 8) + (((int64_t) sens->data_t.dig_p7) << 4);
|
||||
p = p >> 8; // /256
|
||||
*pressure = (float) p / 100;
|
||||
return ESP_OK;
|
||||
}
|
||||
|
||||
esp_err_t bme280_read_humidity(bme280_handle_t sensor, float *humidity)
|
||||
{
|
||||
uint16_t data16;
|
||||
bme280_dev_t *sens = (bme280_dev_t *) sensor;
|
||||
float temp = 0.0;
|
||||
if (bme280_read_temperature(sensor, &temp) != ESP_OK) {
|
||||
// must be done first to get t_fine
|
||||
return ESP_FAIL;
|
||||
}
|
||||
if (bme280_read_uint16(sensor, BME280_REGISTER_HUMIDDATA, &data16) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
int32_t adc_H = data16;
|
||||
if (adc_H == 0x8000) { // value in case humidity measurement was disabled
|
||||
return ESP_FAIL;
|
||||
}
|
||||
int32_t v_x1_u32r;
|
||||
v_x1_u32r = (sens->t_fine - ((int32_t) 76800));
|
||||
v_x1_u32r = (((((adc_H << 14) - (((int32_t) sens->data_t.dig_h4) << 20)
|
||||
- (((int32_t) sens->data_t.dig_h5) * v_x1_u32r))
|
||||
+ ((int32_t) 16384)) >> 15)
|
||||
* (((((((v_x1_u32r * ((int32_t) sens->data_t.dig_h6)) >> 10)
|
||||
* (((v_x1_u32r * ((int32_t) sens->data_t.dig_h3)) >> 11) + ((int32_t) 32768))) >> 10) + ((int32_t) 2097152))
|
||||
* ((int32_t) sens->data_t.dig_h2) + 8192) >> 14));
|
||||
v_x1_u32r = (v_x1_u32r
|
||||
- (((((v_x1_u32r >> 15) * (v_x1_u32r >> 15)) >> 7)
|
||||
* ((int32_t) sens->data_t.dig_h1)) >> 4));
|
||||
v_x1_u32r = (v_x1_u32r < 0) ? 0 : v_x1_u32r;
|
||||
v_x1_u32r = (v_x1_u32r > 419430400) ? 419430400 : v_x1_u32r;
|
||||
*humidity = (v_x1_u32r >> 12) / 1024.0;
|
||||
return ESP_OK;
|
||||
}
|
||||
|
||||
esp_err_t bme280_read_altitude(bme280_handle_t sensor, float seaLevel, float *altitude)
|
||||
{
|
||||
float pressure = 0.0;
|
||||
float temp = 0.0;
|
||||
if (bme280_read_pressure(sensor, &temp) != ESP_OK) {
|
||||
return ESP_FAIL;
|
||||
}
|
||||
float atmospheric = pressure / 100.0F;
|
||||
*altitude = 44330.0 * (1.0 - pow(atmospheric / seaLevel, 0.1903));
|
||||
return ESP_OK;
|
||||
}
|
||||
|
||||
esp_err_t bme280_calculates_pressure(bme280_handle_t sensor, float altitude,
|
||||
float atmospheric, float *pressure)
|
||||
{
|
||||
*pressure = atmospheric / pow(1.0 - (altitude / 44330.0), 5.255);
|
||||
return ESP_OK;
|
||||
}
|
||||
@@ -1,14 +0,0 @@
|
||||
dependencies:
|
||||
cmake_utilities: 0.*
|
||||
i2c_bus:
|
||||
public: true
|
||||
idf: '>=4.4'
|
||||
description: I2C driver for BME280 preesure sensor
|
||||
documentation: https://docs.espressif.com/projects/esp-iot-solution/en/latest/sensors/pressure.html
|
||||
issues: https://github.com/espressif/esp-iot-solution/issues
|
||||
repository: git://github.com/espressif/esp-iot-solution.git
|
||||
repository_info:
|
||||
commit_sha: 1f4206cfe0ff480fedd4fa7860dc41ece6768812
|
||||
path: components/sensors/pressure/bme280
|
||||
url: https://github.com/espressif/esp-iot-solution/tree/master/components/sensors/pressure/bme280
|
||||
version: 0.1.1
|
||||
@@ -1,377 +0,0 @@
|
||||
/*
|
||||
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*/
|
||||
|
||||
#ifndef _BME280_H_
|
||||
#define _BME280_H_
|
||||
|
||||
#include "i2c_bus.h"
|
||||
|
||||
#define BME280_I2C_ADDRESS_DEFAULT (0x76) /*The device's I2C address is either 0x76 or 0x77.*/
|
||||
#define BME280_DEFAULT_CHIPID (0x60)
|
||||
|
||||
#define WRITE_BIT I2C_MASTER_WRITE /*!< I2C master write */
|
||||
#define READ_BIT I2C_MASTER_READ /*!< I2C master read */
|
||||
#define ACK_CHECK_EN 0x1 /*!< I2C master will check ack from slave*/
|
||||
#define ACK_CHECK_DIS 0x0 /*!< I2C master will not check ack from slave */
|
||||
#define ACK_VAL 0x0 /*!< I2C ack value */
|
||||
#define NACK_VAL 0x1 /*!< I2C nack value */
|
||||
|
||||
#define BME280_REGISTER_DIG_T1 0x88
|
||||
#define BME280_REGISTER_DIG_T2 0x8A
|
||||
#define BME280_REGISTER_DIG_T3 0x8C
|
||||
|
||||
#define BME280_REGISTER_DIG_P1 0x8E
|
||||
#define BME280_REGISTER_DIG_P2 0x90
|
||||
#define BME280_REGISTER_DIG_P3 0x92
|
||||
#define BME280_REGISTER_DIG_P4 0x94
|
||||
#define BME280_REGISTER_DIG_P5 0x96
|
||||
#define BME280_REGISTER_DIG_P6 0x98
|
||||
#define BME280_REGISTER_DIG_P7 0x9A
|
||||
#define BME280_REGISTER_DIG_P8 0x9C
|
||||
#define BME280_REGISTER_DIG_P9 0x9E
|
||||
|
||||
#define BME280_REGISTER_DIG_H1 0xA1
|
||||
#define BME280_REGISTER_DIG_H2 0xE1
|
||||
#define BME280_REGISTER_DIG_H3 0xE3
|
||||
#define BME280_REGISTER_DIG_H4 0xE4
|
||||
#define BME280_REGISTER_DIG_H5 0xE5
|
||||
#define BME280_REGISTER_DIG_H6 0xE7
|
||||
|
||||
#define BME280_REGISTER_CHIPID 0xD0
|
||||
#define BME280_REGISTER_VERSION 0xD1
|
||||
#define BME280_REGISTER_SOFTRESET 0xE0
|
||||
|
||||
#define BME280_REGISTER_CAL26 0xE1 // R calibration stored in 0xE1-0xF0
|
||||
|
||||
#define BME280_REGISTER_CONTROLHUMID 0xF2
|
||||
#define BME280_REGISTER_STATUS 0XF3
|
||||
#define BME280_REGISTER_CONTROL 0xF4
|
||||
#define BME280_REGISTER_CONFIG 0xF5
|
||||
#define BME280_REGISTER_PRESSUREDATA 0xF7
|
||||
#define BME280_REGISTER_TEMPDATA 0xFA
|
||||
#define BME280_REGISTER_HUMIDDATA 0xFD
|
||||
|
||||
typedef struct {
|
||||
uint16_t dig_t1;
|
||||
int16_t dig_t2;
|
||||
int16_t dig_t3;
|
||||
|
||||
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;
|
||||
|
||||
uint8_t dig_h1;
|
||||
int16_t dig_h2;
|
||||
uint8_t dig_h3;
|
||||
int16_t dig_h4;
|
||||
int16_t dig_h5;
|
||||
int8_t dig_h6;
|
||||
} bme280_data_t;
|
||||
|
||||
typedef enum {
|
||||
BME280_SAMPLING_NONE = 0b000,
|
||||
BME280_SAMPLING_X1 = 0b001,
|
||||
BME280_SAMPLING_X2 = 0b010,
|
||||
BME280_SAMPLING_X4 = 0b011,
|
||||
BME280_SAMPLING_X8 = 0b100,
|
||||
BME280_SAMPLING_X16 = 0b101
|
||||
} bme280_sensor_sampling;
|
||||
|
||||
typedef enum {
|
||||
BME280_MODE_SLEEP = 0b00,
|
||||
BME280_MODE_FORCED = 0b01,
|
||||
BME280_MODE_NORMAL = 0b11
|
||||
} bme280_sensor_mode;
|
||||
|
||||
typedef enum {
|
||||
BME280_FILTER_OFF = 0b000,
|
||||
BME280_FILTER_X2 = 0b001,
|
||||
BME280_FILTER_X4 = 0b010,
|
||||
BME280_FILTER_X8 = 0b011,
|
||||
BME280_FILTER_X16 = 0b100
|
||||
} bme280_sensor_filter;
|
||||
|
||||
// standby durations in ms
|
||||
typedef enum {
|
||||
BME280_STANDBY_MS_0_5 = 0b000,
|
||||
BME280_STANDBY_MS_10 = 0b110,
|
||||
BME280_STANDBY_MS_20 = 0b111,
|
||||
BME280_STANDBY_MS_62_5 = 0b001,
|
||||
BME280_STANDBY_MS_125 = 0b010,
|
||||
BME280_STANDBY_MS_250 = 0b011,
|
||||
BME280_STANDBY_MS_500 = 0b100,
|
||||
BME280_STANDBY_MS_1000 = 0b101
|
||||
} bme280_standby_duration;
|
||||
|
||||
// The config register
|
||||
typedef struct config {
|
||||
// inactive duration (standby time) in normal mode
|
||||
// 000 = 0.5 ms
|
||||
// 001 = 62.5 ms
|
||||
// 010 = 125 ms
|
||||
// 011 = 250 ms
|
||||
// 100 = 500 ms
|
||||
// 101 = 1000 ms
|
||||
// 110 = 10 ms
|
||||
// 111 = 20 ms
|
||||
unsigned int t_sb : 3;
|
||||
|
||||
// filter settings
|
||||
// 000 = filter off
|
||||
// 001 = 2x filter
|
||||
// 010 = 4x filter
|
||||
// 011 = 8x filter
|
||||
// 100 and above = 16x filter
|
||||
unsigned int filter : 3;
|
||||
|
||||
// unused - don't set
|
||||
unsigned int none : 1;
|
||||
unsigned int spi3w_en : 1;
|
||||
} bme280_config_t;
|
||||
|
||||
// The ctrl_meas register
|
||||
typedef struct ctrl_meas {
|
||||
// temperature oversampling
|
||||
// 000 = skipped
|
||||
// 001 = x1
|
||||
// 010 = x2
|
||||
// 011 = x4
|
||||
// 100 = x8
|
||||
// 101 and above = x16
|
||||
unsigned int osrs_t : 3;
|
||||
|
||||
// pressure oversampling
|
||||
// 000 = skipped
|
||||
// 001 = x1
|
||||
// 010 = x2
|
||||
// 011 = x4
|
||||
// 100 = x8
|
||||
// 101 and above = x16
|
||||
unsigned int osrs_p : 3;
|
||||
|
||||
// device mode
|
||||
// 00 = sleep
|
||||
// 01 or 10 = forced
|
||||
// 11 = normal
|
||||
unsigned int mode : 2;
|
||||
} bme280_ctrl_meas_t;
|
||||
|
||||
// The ctrl_hum register
|
||||
typedef struct ctrl_hum {
|
||||
// unused - don't set
|
||||
unsigned int none : 5;
|
||||
|
||||
// pressure oversampling
|
||||
// 000 = skipped
|
||||
// 001 = x1
|
||||
// 010 = x2
|
||||
// 011 = x4
|
||||
// 100 = x8
|
||||
// 101 and above = x16
|
||||
unsigned int osrs_h : 3;
|
||||
} bme280_ctrl_hum_t;
|
||||
|
||||
typedef struct {
|
||||
i2c_bus_device_handle_t i2c_dev;
|
||||
uint8_t dev_addr;
|
||||
bme280_data_t data_t;
|
||||
bme280_config_t config_t;
|
||||
bme280_ctrl_meas_t ctrl_meas_t;
|
||||
bme280_ctrl_hum_t ctrl_hum_t;
|
||||
int32_t t_fine;
|
||||
} bme280_dev_t;
|
||||
|
||||
typedef void *bme280_handle_t; /*handle of bme280*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Create bme280 handle_t
|
||||
*
|
||||
* @param object handle of I2C
|
||||
* @param device address
|
||||
*
|
||||
* @return
|
||||
* - bme280_handle_t
|
||||
*/
|
||||
bme280_handle_t bme280_create(i2c_bus_handle_t bus, uint8_t dev_addr);
|
||||
|
||||
/**
|
||||
* @brief delete bme280 handle_t
|
||||
*
|
||||
* @param point to object handle of bme280
|
||||
* @param whether delete i2c bus
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK Success
|
||||
* - ESP_FAIL Fail
|
||||
*/
|
||||
esp_err_t bme280_delete(bme280_handle_t *sensor);
|
||||
|
||||
/**
|
||||
* @brief Get the value of BME280_REGISTER_CONFIG register
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
*
|
||||
* @return
|
||||
* - unsigned int: the value of BME280_REGISTER_CONFIG register
|
||||
*/
|
||||
unsigned int bme280_getconfig(bme280_handle_t sensor);
|
||||
|
||||
/**
|
||||
* @brief Get the value of BME280_REGISTER_CONTROL measure register
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
*
|
||||
* @return
|
||||
* - unsigned int the value of BME280_REGISTER_CONTROL register
|
||||
*/
|
||||
unsigned int bme280_getctrl_meas(bme280_handle_t sensor);
|
||||
|
||||
/**
|
||||
* @brief Get the value of BME280_REGISTER_CONTROLHUMID measure register
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
*
|
||||
* @return
|
||||
* - unsigned int the value of BME280_REGISTER_CONTROLHUMID register
|
||||
*/
|
||||
unsigned int bme280_getctrl_hum(bme280_handle_t sensor);
|
||||
|
||||
/**
|
||||
* @brief return true if chip is busy reading cal data
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
*
|
||||
* @return
|
||||
* - true chip is busy
|
||||
* - false chip is idle or wrong
|
||||
*/
|
||||
bool bme280_is_reading_calibration(bme280_handle_t sensor);
|
||||
|
||||
/**
|
||||
* @brief Reads the factory-set coefficients
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK Success
|
||||
* - ESP_FAIL Fail
|
||||
*/
|
||||
esp_err_t bme280_read_coefficients(bme280_handle_t sensor);
|
||||
|
||||
/**
|
||||
* @brief setup sensor with gien parameters / settings
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
* @param Sensor working mode
|
||||
* @param the sample of temperature measure
|
||||
* @param the sample of pressure measure
|
||||
* @param the sample of humidity measure
|
||||
* @param Sensor filter multiples
|
||||
* @param standby duration of sensor
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK Success
|
||||
* - ESP_FAIL Fail
|
||||
*/
|
||||
esp_err_t bme280_set_sampling(bme280_handle_t sensor, bme280_sensor_mode mode,
|
||||
bme280_sensor_sampling tempsampling,
|
||||
bme280_sensor_sampling presssampling,
|
||||
bme280_sensor_sampling humsampling, bme280_sensor_filter filter,
|
||||
bme280_standby_duration duration);
|
||||
|
||||
/**
|
||||
* @brief init bme280 device
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK Success
|
||||
* - ESP_FAIL Fail
|
||||
*/
|
||||
esp_err_t bme280_default_init(bme280_handle_t sensor);
|
||||
|
||||
/**
|
||||
* @brief Take a new measurement (only possible in forced mode)
|
||||
* If we are in forced mode, the BME sensor goes back to sleep after each
|
||||
* measurement and we need to set it to forced mode once at this point, so
|
||||
* it will take the next measurement and then return to sleep again.
|
||||
* In normal mode simply does new measurements periodically.
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK Success
|
||||
* - ESP_FAIL Fail
|
||||
*/
|
||||
esp_err_t bme280_take_forced_measurement(bme280_handle_t sensor);
|
||||
|
||||
/**
|
||||
* @brief Returns the temperature from the sensor
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
* @param temperature pointer to temperature
|
||||
* @return esp_err_t
|
||||
*/
|
||||
esp_err_t bme280_read_temperature(bme280_handle_t sensor, float *temperature);
|
||||
|
||||
/**
|
||||
* @brief Returns the temperature from the sensor
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
* @param pressure pointer to pressure value
|
||||
* @return esp_err_t
|
||||
*/
|
||||
esp_err_t bme280_read_pressure(bme280_handle_t sensor, float *pressure);
|
||||
|
||||
/**
|
||||
* @brief Returns the humidity from the sensor
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
* @param humidity pointer to humidity value
|
||||
* @return esp_err_t
|
||||
*/
|
||||
esp_err_t bme280_read_humidity(bme280_handle_t sensor, float *humidity);
|
||||
|
||||
/**
|
||||
* @brief Calculates the altitude (in meters) from the specified atmospheric
|
||||
* pressure (in hPa), and sea-level pressure (in hPa).
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
* @param seaLevel: Sea-level pressure in hPa
|
||||
* @param altitude pointer to altitude value
|
||||
* @return esp_err_t
|
||||
*/
|
||||
esp_err_t bme280_read_altitude(bme280_handle_t sensor, float seaLevel, float *altitude);
|
||||
|
||||
/**
|
||||
* Calculates the pressure at sea level (in hPa) from the specified altitude
|
||||
* (in meters), and atmospheric pressure (in hPa).
|
||||
*
|
||||
* @param sensor object handle of bme280
|
||||
* @param altitude Altitude in meters
|
||||
* @param atmospheric Atmospheric pressure in hPa
|
||||
* @param pressure pointer to pressure value
|
||||
* @return esp_err_t
|
||||
*/
|
||||
esp_err_t bme280_calculates_pressure(bme280_handle_t sensor, float altitude,
|
||||
float atmospheric, float *pressure);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
@@ -1,202 +0,0 @@
|
||||
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
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|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
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|
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|
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|
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|
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"Legal Entity" shall mean the union of the acting entity and all
|
||||
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|
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|
||||
"control" means (i) the power, direct or indirect, to cause the
|
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|
||||
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|
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|
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|
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"You" (or "Your") shall mean an individual or Legal Entity
|
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|
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"Source" form shall mean the preferred form for making modifications,
|
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END OF TERMS AND CONDITIONS
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APPENDIX: How to apply the Apache License to your work.
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To apply the Apache License to your work, attach the following
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@@ -1,9 +0,0 @@
|
||||
# The following lines of boilerplate have to be in your project's CMakeLists
|
||||
# in this exact order for cmake to work correctly
|
||||
cmake_minimum_required(VERSION 3.5)
|
||||
|
||||
set(EXTRA_COMPONENT_DIRS "$ENV{IDF_PATH}/tools/unit-test-app/components"
|
||||
"../../bme280")
|
||||
|
||||
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
|
||||
project(bme280_test)
|
||||
@@ -1,3 +0,0 @@
|
||||
idf_component_register(SRC_DIRS "."
|
||||
PRIV_INCLUDE_DIRS "."
|
||||
PRIV_REQUIRES unity test_utils bme280)
|
||||
@@ -1,77 +0,0 @@
|
||||
/*
|
||||
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include "freertos/FreeRTOS.h"
|
||||
#include "freertos/task.h"
|
||||
#include "unity.h"
|
||||
#include "esp_log.h"
|
||||
#include "bme280.h"
|
||||
#include "i2c_bus.h"
|
||||
|
||||
#define I2C_MASTER_SCL_IO GPIO_NUM_2 /*!< gpio number for I2C master clock IO2*/
|
||||
#define I2C_MASTER_SDA_IO GPIO_NUM_1 /*!< gpio number for I2C master data IO1*/
|
||||
#define I2C_MASTER_NUM I2C_NUM_0 /*!< I2C port number for master bme280 */
|
||||
#define I2C_MASTER_TX_BUF_DISABLE 0 /*!< I2C master do not need buffer */
|
||||
#define I2C_MASTER_RX_BUF_DISABLE 0 /*!< I2C master do not need buffer */
|
||||
#define I2C_MASTER_FREQ_HZ 100000 /*!< I2C master clock frequency */
|
||||
|
||||
static i2c_bus_handle_t i2c_bus = NULL;
|
||||
static bme280_handle_t bme280 = NULL;
|
||||
|
||||
void bme280_test_init()
|
||||
{
|
||||
i2c_config_t conf = {
|
||||
.mode = I2C_MODE_MASTER,
|
||||
.sda_io_num = I2C_MASTER_SDA_IO,
|
||||
.sda_pullup_en = GPIO_PULLUP_ENABLE,
|
||||
.scl_io_num = I2C_MASTER_SCL_IO,
|
||||
.scl_pullup_en = GPIO_PULLUP_ENABLE,
|
||||
.master.clk_speed = I2C_MASTER_FREQ_HZ,
|
||||
};
|
||||
i2c_bus = i2c_bus_create(I2C_MASTER_NUM, &conf);
|
||||
bme280 = bme280_create(i2c_bus, BME280_I2C_ADDRESS_DEFAULT);
|
||||
ESP_LOGI("BME280:", "bme280_default_init:%d", bme280_default_init(bme280));
|
||||
}
|
||||
|
||||
void bme280_test_deinit()
|
||||
{
|
||||
bme280_delete(&bme280);
|
||||
i2c_bus_delete(&i2c_bus);
|
||||
}
|
||||
|
||||
void bme280_test_getdata()
|
||||
{
|
||||
int cnt = 10;
|
||||
while (cnt--) {
|
||||
float temperature = 0.0, humidity = 0.0, pressure = 0.0;
|
||||
if (ESP_OK == bme280_read_temperature(bme280, &temperature)) {
|
||||
ESP_LOGI("BME280", "temperature:%f ", temperature);
|
||||
}
|
||||
vTaskDelay(300 / portTICK_RATE_MS);
|
||||
if (ESP_OK == bme280_read_humidity(bme280, &humidity)) {
|
||||
ESP_LOGI("BME280", "humidity:%f ", humidity);
|
||||
}
|
||||
vTaskDelay(300 / portTICK_RATE_MS);
|
||||
if (ESP_OK == bme280_read_pressure(bme280, &pressure)) {
|
||||
ESP_LOGI("BME280", "pressure:%f\n", pressure);
|
||||
}
|
||||
vTaskDelay(300 / portTICK_RATE_MS);
|
||||
}
|
||||
}
|
||||
|
||||
TEST_CASE("Device bme280 test", "[bme280][iot][device]")
|
||||
{
|
||||
bme280_test_init();
|
||||
bme280_test_getdata();
|
||||
bme280_test_deinit();
|
||||
}
|
||||
|
||||
void app_main(void)
|
||||
{
|
||||
printf("BME280 TEST \n");
|
||||
unity_run_menu();
|
||||
}
|
||||
@@ -1,9 +0,0 @@
|
||||
# For IDF 5.0
|
||||
CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ_240=y
|
||||
CONFIG_FREERTOS_HZ=1000
|
||||
CONFIG_ESP_TASK_WDT_EN=n
|
||||
|
||||
# For IDF4.4
|
||||
CONFIG_ESP32S2_DEFAULT_CPU_FREQ_240=y
|
||||
CONFIG_ESP32S3_DEFAULT_CPU_FREQ_240=y
|
||||
CONFIG_ESP_TASK_WDT=n
|
||||
Reference in New Issue
Block a user