exampleUsage.ino

/*
 * Copyright (c) 2021, Sensirion AG
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * * Neither the name of Sensirion AG nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <Arduino.h>
#include <SensirionUartSvm40.h>

// Adjust as needed for you Arduino board
#define SENSOR_SERIAL_INTERFACE Serial1

SensirionUartSvm40 svm40;

void setup() {
    uint16_t error;
    char errorMessage[256];

    Serial.begin(115200);
    while (!Serial) {
        delay(100);
    }

    SENSOR_SERIAL_INTERFACE.begin(115200);
    while (!SENSOR_SERIAL_INTERFACE) {
        delay(100);
    }

    svm40.begin(SENSOR_SERIAL_INTERFACE);

    error = svm40.deviceReset();
    if (error) {
        Serial.print("Error trying to execute deviceReset(): ");
        errorToString(error, errorMessage, 256);
        Serial.println(errorMessage);
    }

    // Delay to let the serial monitor catch up
    delay(2000);

    uint8_t serialNumber[32];
    uint8_t serialNumberSize = 32;
    error = svm40.getSerialNumber(serialNumber, serialNumberSize);
    if (error) {
        Serial.print("Error trying to execute getSerialNumber(): ");
        errorToString(error, errorMessage, 256);
        Serial.println(errorMessage);
    } else {
        Serial.print("SerialNumber: ");
        Serial.println((char*)serialNumber);
    }

    uint8_t productType[32];
    uint8_t productTypeSize = 32;
    error = svm40.getProductType(productType, productTypeSize);
    if (error) {
        Serial.print("Error trying to execute getProductType(): ");
        errorToString(error, errorMessage, 256);
        Serial.println(errorMessage);
    } else {
        Serial.print("ProductType: ");
        Serial.println((char*)productType);
    }

    uint8_t productName[32];
    uint8_t productNameSize = 32;
    error = svm40.getProductName(productName, productNameSize);
    if (error) {
        Serial.print("Error trying to execute getProductName(): ");
        errorToString(error, errorMessage, 256);
        Serial.println(errorMessage);
    } else {
        Serial.print("ProductName: ");
        Serial.println((char*)productName);
    }

    uint8_t firmwareMajor;
    uint8_t firmwareMinor;
    bool firmwareDebug;
    uint8_t hardwareMajor;
    uint8_t hardwareMinor;
    uint8_t protocolMajor;
    uint8_t protocolMinor;
    error = svm40.getVersion(firmwareMajor, firmwareMinor, firmwareDebug,
                             hardwareMajor, hardwareMinor, protocolMajor,
                             protocolMinor);
    if (error) {
        Serial.print("Error trying to execute getVersion(): ");
        errorToString(error, errorMessage, 256);
        Serial.println(errorMessage);
    } else {
        Serial.print("Firmware: ");
        Serial.print(firmwareMajor);
        Serial.print(".");
        Serial.print(firmwareMinor);
        Serial.print(" Debug: ");
        Serial.println(firmwareDebug);
        Serial.print("Hardware: ");
        Serial.print(hardwareMajor);
        Serial.print(".");
        Serial.println(hardwareMinor);
        Serial.print("Protocol: ");
        Serial.print(protocolMajor);
        Serial.print(".");
        Serial.println(protocolMinor);
    }

    error = svm40.setTemperatureOffsetForRhtMeasurements(0);
    if (error) {
        Serial.print("Error trying to execute "
                     "setTemperatureOffsetForRhtMeasurements(): ");
        errorToString(error, errorMessage, 256);
        Serial.println(errorMessage);
    }

    float tOffset;
    error = svm40.getTemperatureOffsetForRhtMeasurements(tOffset);
    if (error) {
        Serial.print("Error trying to execute "
                     "getTemperatureOffsetForRhtMeasurements(): ");
        errorToString(error, errorMessage, 256);
        Serial.println(errorMessage);
    } else {
        Serial.print("Temperature Offset: ");
        Serial.println(tOffset);
    }

    // Start Measurement
    error = svm40.startContinuousMeasurement();
    if (error) {
        Serial.print("Error trying to execute startContinuousMeasurement(): ");
        errorToString(error, errorMessage, 256);
        Serial.println(errorMessage);
    }
}

void loop() {
    uint16_t error;
    char errorMessage[256];
    delay(1000);

    float vocIndex;
    float humidity;
    float temperature;
    error = svm40.readMeasuredValues(vocIndex, humidity, temperature);
    if (error) {
        Serial.print("Error trying to execute readMeasuredValues: ");
        errorToString(error, errorMessage, 256);
        Serial.println(errorMessage);
    } else {
        Serial.print("VocIndex: ");
        Serial.print(vocIndex);
        Serial.print("\t");
        Serial.print("Humidity: ");
        Serial.print(humidity);
        Serial.print("\t");
        Serial.print("Temperature: ");
        Serial.println(temperature);
    }
}