Domotique/WifiControlSensor/BME680_BSEC.ino

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2020-07-28 19:37:19 +02:00
#ifdef CONFIG_BME680_BSEC_ENABLE
#include "BME680_BSEC.h"
#include "bsec.h"
/* Configure the BSEC library with information about the sensor
18v/33v = Voltage at Vdd. 1.8V or 3.3V
3s/300s = BSEC operating mode, BSEC_SAMPLE_RATE_LP or BSEC_SAMPLE_RATE_ULP
4d/28d = Operating age of the sensor in days
generic_18v_3s_4d
generic_18v_3s_28d
generic_18v_300s_4d
generic_18v_300s_28d
generic_33v_3s_4d
generic_33v_3s_28d
generic_33v_300s_4d
generic_33v_300s_28d
*/
const uint8_t bsec_config_iaq[] = {
#if CONFIG_SAMPLING_PERIODE_MS == 3000
#include "config/generic_33v_3s_4d/bsec_iaq.txt"
#elif CONFIG_SAMPLING_PERIODE_MS == 300000
#include "config/generic_33v_300s_4d/bsec_iaq.txt"
#else
#error "Unsupport CONFIG_SAMPLING_PERIODE_MS (3000 and 300000 are supported)"
#endif
};
#define STATE_SAVE_PERIOD \
UINT32_C(360 * 60 * 1000) // 360 minutes - 4 times a day
uint16_t stateUpdateCounter = 0;
Bsec iaqSensor;
uint8_t bsecState[BSEC_MAX_STATE_BLOB_SIZE] = {0};
// Helper function definitions
int checkIaqSensorStatus(void) {
if (iaqSensor.status != BSEC_OK) {
if (iaqSensor.status < BSEC_OK) {
SKETCH_DEBUG_PRINTLN("BSEC error code : " + String(iaqSensor.status));
return -2;
} else {
SKETCH_DEBUG_PRINTLN("BSEC warning code : " + String(iaqSensor.status));
return -1;
}
}
if (iaqSensor.bme680Status != BME680_OK) {
if (iaqSensor.bme680Status < BME680_OK) {
SKETCH_DEBUG_PRINTLN("BME680 error code : " + String(iaqSensor.bme680Status));
return -2;
} else {
SKETCH_DEBUG_PRINTLN("BME680 warning code : " + String(iaqSensor.bme680Status));
return -1;
}
}
iaqSensor.status = BSEC_OK;
return 0;
}
void updateState(void)
{
bool update = false;
/* Set a trigger to save the state. Here, the state is saved every STATE_SAVE_PERIOD with the
* first state being saved once the algorithm achieves full calibration, i.e. iaqAccuracy = 3
*/
if (stateUpdateCounter == 0) {
if (iaqSensor.iaqAccuracy >= 3) {
update = true;
stateUpdateCounter++;
}
} else {
/* Update every STATE_SAVE_PERIOD milliseconds */
if ((stateUpdateCounter * STATE_SAVE_PERIOD) < millis()) {
update = true;
stateUpdateCounter++;
}
}
if (update) {
iaqSensor.getState(bsecState);
checkIaqSensorStatus();
SKETCH_DEBUG_PRINTLN("Writing state to EEPROM");
EepromSaveBME680State(bsecState);
}
}
int BME680BSECGetMeasure(float &t, float &p, float &h, float &iaq, float &iaqAcc)
{
if (iaqSensor.run()) { // If new data is available
t = iaqSensor.temperature;
p = iaqSensor.pressure;
h = iaqSensor.humidity;
iaq = iaqSensor.iaq;
iaqAcc = iaqSensor.iaqAccuracy;
updateState();
} else {
return -1;
}
return 0;
}
int BME680BSECSetup()
{
Wire.begin();
iaqSensor.begin(CONFIG_BME680_BSEC_I2C_ADDR, Wire);
SKETCH_DEBUG_PRINTLN("\nBSEC library version " + String(iaqSensor.version.major) + "." +
String(iaqSensor.version.minor) + "." + String(iaqSensor.version.major_bugfix) +
"." + String(iaqSensor.version.minor_bugfix));
if (checkIaqSensorStatus())
return -1;
iaqSensor.setConfig(bsec_config_iaq);
if (checkIaqSensorStatus())
return -1;
if (!EepromLoadBME680State(bsecState))
iaqSensor.setState(bsecState);
if (checkIaqSensorStatus())
return -1;
bsec_virtual_sensor_t sensorList[7] = {
BSEC_OUTPUT_RAW_TEMPERATURE,
BSEC_OUTPUT_RAW_PRESSURE,
BSEC_OUTPUT_RAW_HUMIDITY,
BSEC_OUTPUT_RAW_GAS,
BSEC_OUTPUT_IAQ,
BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_TEMPERATURE,
BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY,
};
iaqSensor.updateSubscription(sensorList, 7, BSEC_SAMPLE_RATE_LP);
if (checkIaqSensorStatus())
return -1;
return 0;
}
bool BME680BSECIsConnected()
{
if (checkIaqSensorStatus())
return false;
return true;
}
#endif