AirQUserDemo/Sensor.cpp

#include "Sensor.hpp"

#include "config.h"
#include <esp_adc_cal.h>

bool Sensor::getSCD40MeasurementResult() {
    // Read Measurement  SCD40
    // uint16_t co2 = 0;
    // float temperature = 0.0f;
    // float humidity = 0.0f;
    bool isDataReady = false;
    uint16_t error = _scd4x.getDataReadyFlag(isDataReady);
    if (error) {
        errorToString(error, _errorMessage, 256);
        log_w("Error trying to execute getDataReadyFlag(): %s", _errorMessage);
        return false;
    }
    if (!isDataReady) {
        return false;
    }

    error = _scd4x.readMeasurement(scd40.co2, scd40.temperature, scd40.humidity);
    if (error) {
        errorToString(error, _errorMessage, 256);
        log_w("Error trying to execute readMeasurement(): %s", _errorMessage);
        return false;
    } else if (scd40.co2 == 0) {
        log_w("Invalid sample detected, skipping.");
        return false;
    } else {
        log_d("SCD40 Measurement Result:");
        log_d("  Co2: %d ppm", scd40.co2);
        log_d("  Temperature: %f °C", scd40.temperature);
        log_d("  Humidity: %f %RH", scd40.humidity);
        return true;
    }
    return false;
}


bool Sensor::getSEN55MeasurementResult() {
    // Read Measurement SEN55
    uint16_t error = _sen5x.readMeasuredValues(
        sen55.massConcentrationPm1p0,
        sen55.massConcentrationPm2p5,
        sen55.massConcentrationPm4p0,
        sen55.massConcentrationPm10p0,
        sen55.ambientHumidity,
        sen55.ambientTemperature,
        sen55.vocIndex,
        sen55.noxIndex
    );

    if (error) {
        errorToString(error, _errorMessage, 256);
        log_w("Error trying to execute readMeasuredValues(): %s", _errorMessage);
        return false;
    } else {
        log_d("SEN55 Measurement Result:");
        log_d("  PM1.0: %f µg/m³", sen55.massConcentrationPm1p0);
        log_d("  PM2.5: %f µg/m³", sen55.massConcentrationPm2p5);
        log_d("  PM4.0: %f µg/m³", sen55.massConcentrationPm4p0);
        log_d("  PM10.0: %f µg/m³", sen55.massConcentrationPm10p0);
        if (isnan(sen55.ambientHumidity)) {
            log_d("  AmbientHumidity: n/a");
        } else {
            log_d("  AmbientHumidity: %f %RH",sen55.ambientHumidity);
        }
        if (isnan(sen55.ambientTemperature)) {
            log_d("  AmbientTemperature: n/a");
        } else {
            log_d("  AmbientTemperature: %f °C", sen55.ambientTemperature);
        }

        if (isnan(sen55.vocIndex)) {
            log_d("  VOC Index: n/a");
        } else {
            log_d("  VOC Index: %f", sen55.vocIndex);
        }

        if (isnan(sen55.noxIndex)) {
            log_d("  NOx Index: n/a");
        } else {
            log_d("  NOx Index: %f", sen55.noxIndex);
        }
        return true;
    }
    return false;
}


void Sensor::getBatteryVoltageRaw() {
    esp_adc_cal_characteristics_t adc_chars;
    esp_adc_cal_characterize(
        ADC_UNIT_1,
        ADC_ATTEN_DB_11,
        ADC_WIDTH_BIT_12,
        1100,
        &adc_chars
    );
    battery.raw = esp_adc_cal_raw_to_voltage(analogRead(BAT_ADC_PIN), &adc_chars);
}


void Sensor::getTimeString() {
    I2C_BM8563_TimeTypeDef time;
    _bm8563.getTime(&time);
    sprintf(this->time.time, "%02d:%02d", time.hours, time.minutes);
}


void Sensor::getDateString() {
    I2C_BM8563_DateTypeDef date;
    _bm8563.getDate(&date);
    sprintf(this->time.date, "%04d-%02d-%02d", date.year, date.month, date.date);
}