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libraries/bsec2/examples/generic_examples/basic_idf/platformio.ini Normal file
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; PlatformIO Project Configuration File
;
; Build options: build flags, source filter
; Upload options: custom upload port, speed and extra flags
; Library options: dependencies, extra library storages
; Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html
[env:esp32dev]
platform = espressif32@6.6.0
board = esp32dev
framework = espidf
platform_packages =
platformio/framework-espidf@~3.50201.0
lib_deps =
../../../
BME68x Sensor library=https://github.com/luar123/Bosch-BME68x-Library.git
https://github.com/natanaeljr/esp32-I2Cbus
monitor_speed = 115200

274
libraries/bsec2/examples/generic_examples/basic_idf/src/main.cpp Normal file
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/**
* Copyright (C) 2021 Bosch Sensortec GmbH
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
/* If compiling this examples leads to an 'undefined reference error', refer to the README
* at https://github.com/BoschSensortec/Bosch-BSEC2-Library
*/
/* The new sensor needs to be conditioned before the example can work reliably. You may run this
* example for 24hrs to let the sensor stabilize.
*/
/**
* basic.ino sketch :
* This is an example for illustrating the BSEC virtual outputs and
* which has been designed to work with Adafruit ESP8266 Board
*/
#include "esp_log.h"
#include "esp_timer.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "I2Cbus.hpp"
#define BME688_ADD 0x77
static const char* TAG = "main";
#include <bsec2.h>
/* Macros used */
#define PANIC_LED GPIO_NUM_5
#define ERROR_DUR 1000
#define SAMPLE_RATE BSEC_SAMPLE_RATE_LP
/* Helper functions declarations */
/**
* @brief : This function toggles the led when a fault was detected
*/
void errLeds(void);
/**
* @brief : This function checks the BSEC status, prints the respective error code. Halts in case of error
* @param[in] bsec : Bsec2 class object
*/
void checkBsecStatus(Bsec2 bsec);
/**
* @brief : This function is called by the BSEC library when a new output is available
* @param[in] input : BME68X sensor data before processing
* @param[in] outputs : Processed BSEC BSEC output data
* @param[in] bsec : Instance of BSEC2 calling the callback
*/
void newDataCallback(const bme68xData data, const bsecOutputs outputs, Bsec2 bsec);
/* Create an object of the class Bsec2 */
Bsec2 envSensor;
/* Function wrappers */
int8_t read_bytes_wrapper(uint8_t a_register, uint8_t *data, uint32_t len, void *intfPtr) {
return static_cast<I2C_t *>(intfPtr)->readBytes(BME688_ADD, a_register, len, data)==ESP_OK ? 0 : -1;
}
int8_t write_bytes_wrapper(uint8_t a_register, const uint8_t *data, uint32_t len,
void *intfPtr) {
return static_cast<I2C_t *>(intfPtr)->writeBytes(BME688_ADD, a_register, len, data)==ESP_OK ? 0 : -1;
}
uint32_t IRAM_ATTR millis() { return (uint32_t) (esp_timer_get_time() / 1000ULL); }
void IRAM_ATTR delay(uint32_t ms) { vTaskDelay(ms / portTICK_PERIOD_MS); }
uint32_t IRAM_ATTR micros() { return (uint32_t) esp_timer_get_time(); }
void delay_microseconds_safe(uint32_t us) { // avoids CPU locks that could trigger WDT or affect WiFi/BT stability
uint32_t start = micros();
const uint32_t lag = 5000; // microseconds, specifies the maximum time for a CPU busy-loop.
// it must be larger than the worst-case duration of a delay(1) call (hardware tasks)
// 5ms is conservative, it could be reduced when exact BT/WiFi stack delays are known
if (us > lag) {
delay((us - lag) / 1000UL); // note: in disabled-interrupt contexts delay() won't actually sleep
while (micros() - start < us - lag)
delay(1); // in those cases, this loop allows to yield for BT/WiFi stack tasks
}
while (micros() - start < us) // fine delay the remaining usecs
;
}
void delay_us(uint32_t period, void *intfPtr) {
delay_microseconds_safe(period);
}
/* Entry point for the example */
void setup(void)
{
/* Desired subscription list of BSEC2 outputs */
bsecSensor sensorList[] = {
BSEC_OUTPUT_IAQ,
BSEC_OUTPUT_RAW_TEMPERATURE,
BSEC_OUTPUT_RAW_PRESSURE,
BSEC_OUTPUT_RAW_HUMIDITY,
BSEC_OUTPUT_RAW_GAS,
BSEC_OUTPUT_STABILIZATION_STATUS,
BSEC_OUTPUT_RUN_IN_STATUS,
BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_TEMPERATURE,
BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY,
BSEC_OUTPUT_STATIC_IAQ,
BSEC_OUTPUT_CO2_EQUIVALENT,
BSEC_OUTPUT_BREATH_VOC_EQUIVALENT,
BSEC_OUTPUT_GAS_PERCENTAGE,
BSEC_OUTPUT_COMPENSATED_GAS
};
/* Initialize the communication interfaces */
i2c0.begin(GPIO_NUM_3,GPIO_NUM_0);
gpio_set_direction(PANIC_LED, GPIO_MODE_OUTPUT);
/* Initialize the library and interfaces */
if (!envSensor.begin(BME68X_I2C_INTF, read_bytes_wrapper, write_bytes_wrapper, delay_us, (void *) &i2c0, millis))
{
checkBsecStatus(envSensor);
}
/*
* The default offset provided has been determined by testing the sensor in LP and ULP mode on application board 3.0
* Please update the offset value after testing this on your product
*/
if (SAMPLE_RATE == BSEC_SAMPLE_RATE_ULP)
{
envSensor.setTemperatureOffset(TEMP_OFFSET_ULP);
}
else if (SAMPLE_RATE == BSEC_SAMPLE_RATE_LP)
{
envSensor.setTemperatureOffset(TEMP_OFFSET_LP);
}
/* Subsribe to the desired BSEC2 outputs */
if (!envSensor.updateSubscription(sensorList, ARRAY_LEN(sensorList), SAMPLE_RATE))
{
checkBsecStatus(envSensor);
}
/* Whenever new data is available call the newDataCallback function */
envSensor.attachCallback(newDataCallback);
ESP_LOGI(TAG, "BSEC library version %u.%u.%u.%u", envSensor.version.major, envSensor.version.minor, envSensor.version.major_bugfix, envSensor.version.minor_bugfix);
}
/* Function that is looped forever */
void loop(void)
{
/* Call the run function often so that the library can
* check if it is time to read new data from the sensor
* and process it.
*/
if (!envSensor.run())
{
checkBsecStatus(envSensor);
}
}
void errLeds(void)
{
while(1)
{
gpio_set_level(PANIC_LED, 1);
vTaskDelay(ERROR_DUR / portTICK_PERIOD_MS);
gpio_set_level(PANIC_LED, 0);
vTaskDelay(ERROR_DUR / portTICK_PERIOD_MS);
}
}
void newDataCallback(const bme68xData data, const bsecOutputs outputs, Bsec2 bsec)
{
if (!outputs.nOutputs)
{
return;
}
ESP_LOGI(TAG, "BSEC outputs:\n\tTime stamp = %d", (int) (outputs.output[0].time_stamp / INT64_C(1000000)));
for (uint8_t i = 0; i < outputs.nOutputs; i++)
{
const bsecData output = outputs.output[i];
switch (output.sensor_id)
{
case BSEC_OUTPUT_IAQ:
ESP_LOGI(TAG, "\tIAQ = %f", output.signal);
ESP_LOGI(TAG, "\tIAQ accuracy = %d", (int) output.accuracy);
break;
case BSEC_OUTPUT_RAW_TEMPERATURE:
ESP_LOGI(TAG, "\tTemperature = %f", output.signal);
break;
case BSEC_OUTPUT_RAW_PRESSURE:
ESP_LOGI(TAG, "\tPressure = %f", output.signal);
break;
case BSEC_OUTPUT_RAW_HUMIDITY:
ESP_LOGI(TAG, "\tHumidity = %f", output.signal);
break;
case BSEC_OUTPUT_RAW_GAS:
ESP_LOGI(TAG, "\tGas resistance = %f", output.signal);
break;
case BSEC_OUTPUT_STABILIZATION_STATUS:
ESP_LOGI(TAG, "\tStabilization status = %f", output.signal);
break;
case BSEC_OUTPUT_RUN_IN_STATUS:
ESP_LOGI(TAG, "\tRun in status = %f", output.signal);
break;
case BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_TEMPERATURE:
ESP_LOGI(TAG, "\tCompensated temperature = %f", output.signal);
break;
case BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY:
ESP_LOGI(TAG, "\tCompensated humidity = %f", output.signal);
break;
case BSEC_OUTPUT_STATIC_IAQ:
ESP_LOGI(TAG, "\tStatic IAQ = %f", output.signal);
break;
case BSEC_OUTPUT_CO2_EQUIVALENT:
ESP_LOGI(TAG, "\tCO2 Equivalent = %f", output.signal);
break;
case BSEC_OUTPUT_BREATH_VOC_EQUIVALENT:
ESP_LOGI(TAG, "\tbVOC equivalent = %f", output.signal);
break;
case BSEC_OUTPUT_GAS_PERCENTAGE:
ESP_LOGI(TAG, "\tGas percentage = %f", output.signal);
break;
case BSEC_OUTPUT_COMPENSATED_GAS:
ESP_LOGI(TAG, "\tCompensated gas = %f", output.signal);
break;
default:
break;
}
}
}
void checkBsecStatus(Bsec2 bsec)
{
if (bsec.status < BSEC_OK)
{
ESP_LOGI(TAG, "BSEC error code : %d", bsec.status);
errLeds(); /* Halt in case of failure */
}
else if (bsec.status > BSEC_OK)
{
ESP_LOGI(TAG, "BSEC warning code : %d", bsec.status);
}
if (bsec.sensor.status < BME68X_OK)
{
ESP_LOGI(TAG, "BME68X error code : %d", bsec.sensor.status);
errLeds(); /* Halt in case of failure */
}
else if (bsec.sensor.status > BME68X_OK)
{
ESP_LOGI(TAG, "BME68X warning code : %d", bsec.sensor.status);
}
}
void loop_task(void *pv_params) {
setup();
while (true) {
loop();
vTaskDelay(1 / portTICK_PERIOD_MS);
}
}
extern "C" void app_main()
{
ESP_LOGI(TAG, "starting");
xTaskCreate(loop_task, "loopTask", 8192, nullptr, 1, NULL);
}