Use Bsec library for BME680
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Claire.ino
156
Claire.ino
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@ -10,11 +10,7 @@
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#include <HTTPClient.h>
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#include <Adafruit_NeoPixel.h>
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#include <SPI.h>
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#include <Adafruit_Sensor.h>
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#include "Adafruit_BME680.h"
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//#include "bsec.h"
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#include "bsec.h"
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#define NUM_LEDS_PROTO_PAPER 93
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#define DATA_PIN_PROTO_PAPER 5
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@ -46,10 +42,8 @@ Adafruit_NeoPixel leds_rgbw_proto_v1(NUM_LEDS_PROTO_V1, DATA_PIN_PROTO_V1, NEO_R
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#define SEALEVELPRESSURE_HPA (1013.25)
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#define BME_CS 5
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Adafruit_BME680 bme(BME_CS); // hardware SPI
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//SPIClass SPI1(HSPI);
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//Bsec iaqSensor;
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String output;
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Bsec iaqSensor;
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static HTTPClient http;
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static const String baseUrlAQI = "http://target.luon.net:2356//forecast?&metrics=PAQI&metrics=AQI&metrics=pollen&metrics=UVI";
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@ -83,8 +77,6 @@ const char* root_ca = \
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const float location[] = {51.445466493287434, 5.515445691496135}; // Telefoonstraat, Eindhoven
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const String address = "Telefoonstraat 18, Eindhoven";
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// const String address = "Bandeliersberg 157, Roosendaal";
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//const float location[] = {51.51831326813842, 4.451744264773111}; // Bandeliersberg, Roosendaal
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//const float location[] = {51.44083, 5.47778}; // Eindhoven
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//const float location[] = {52.09083, 5.12222}; // Utrecht
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@ -236,6 +228,33 @@ void leds_clear(void) {
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}
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}
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int checkIaqSensorStatus(void)
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{
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if (iaqSensor.status != BSEC_OK) {
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if (iaqSensor.status < BSEC_OK) {
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output = "BSEC error code : " + String(iaqSensor.status);
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Serial.println(output);
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//for (;;);
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} else {
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output = "BSEC warning code : " + String(iaqSensor.status);
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Serial.println(output);
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}
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}
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if (iaqSensor.bme680Status != BME680_OK) {
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if (iaqSensor.bme680Status < BME680_OK) {
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output = "BME680 error code : " + String(iaqSensor.bme680Status);
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Serial.println(output);
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//for (;;);
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} else {
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output = "BME680 warning code : " + String(iaqSensor.bme680Status);
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Serial.println(output);
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}
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}
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return iaqSensor.bme680Status;
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}
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void readSensors(void) {
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static bool readingInProgress = false;
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static unsigned long endTime = 0;
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@ -244,56 +263,24 @@ void readSensors(void) {
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return;
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}
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if (readingInProgress == false) {
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Serial.println("Starting new measurement");
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unsigned long endTime = bme.beginReading();
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if (endTime == 0) {
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Serial.println(F("Failed to begin reading :("));
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return;
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}
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readingInProgress = true;
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Serial.print(F("Reading started at "));
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Serial.print(millis());
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Serial.print(F(" and will finish at "));
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Serial.println(endTime);
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unsigned long time_trigger = millis();
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if (iaqSensor.run()) { // If new data is available
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output = String(time_trigger);
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output += " ms, Traw: " + String(iaqSensor.rawTemperature);
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output += " *C , P: " + String(iaqSensor.pressure);
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output += " hPa, RHraw: " + String(iaqSensor.rawHumidity);
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output += " %, Rgas: " + String(iaqSensor.gasResistance);
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output += " Ohm, IAQ: " + String(iaqSensor.iaq);
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output += ", accuracy: " + String(iaqSensor.iaqAccuracy);
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output += ", Tcorr: " + String(iaqSensor.temperature);
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output += " *C, RHcorr" + String(iaqSensor.humidity);
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output += " %, IAQ static" + String(iaqSensor.staticIaq);
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output += ", eCO2: " + String(iaqSensor.co2Equivalent);
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output += " ppm, eVOC: " + String(iaqSensor.breathVocEquivalent);
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output += " ppm";
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Serial.println(output);
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} else {
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if (millis() - endTime > 0) {
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// Obtain measurement results from BME680. Note that this operation isn't
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// instantaneous even if milli() >= endTime due to I2C/SPI latency.
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//
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// This call takes about 162 ms
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if (!bme.endReading()) {
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Serial.println(F("Failed to complete reading :("));
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return;
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}
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readingInProgress = false;
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Serial.print(F("Reading completed at "));
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Serial.println(millis());
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Serial.print(F("Temperature = "));
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Serial.print(bme.temperature);
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Serial.println(F(" *C"));
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Serial.print(F("Pressure = "));
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Serial.print(bme.pressure / 100.0);
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Serial.println(F(" hPa"));
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Serial.print(F("Humidity = "));
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Serial.print(bme.humidity);
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Serial.println(F(" %"));
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Serial.print(F("Gas = "));
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Serial.print(bme.gas_resistance / 1000.0);
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Serial.println(F(" KOhms"));
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Serial.print(F("Approx. Altitude = "));
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Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
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Serial.println(F(" m"));
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Serial.println();
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}
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checkIaqSensorStatus();
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}
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}
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@ -323,30 +310,45 @@ void setup() {
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Serial.begin(115200);
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Serial.println("buienradarklok starting");
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if (!bme.begin()) {
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SPI.begin();
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iaqSensor.begin(BME_CS, SPI);
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String output = "\nBSEC library version " + String(iaqSensor.version.major) + "." + String(iaqSensor.version.minor) + "." + String(iaqSensor.version.major_bugfix) + "." + String(iaqSensor.version.minor_bugfix);
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Serial.println(output);
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x = checkIaqSensorStatus();
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if (x != BME680_OK) {
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Serial.println(F("Could not find a valid BME680 sensor; assuming hw variant \"paper prototype\"!"));
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hw_variant = HW_PROTO_PAPER;
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setup_pins_proto_paper();
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leds_rgb_proto_paper.begin(); // INITIALIZE NeoPixel strip object
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} else {
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Serial.println(F("BME680 found; assuming hw variant \"proto v1\""));
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// Set up oversampling and filter initialization
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bme.setTemperatureOversampling(BME680_OS_8X);
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bme.setHumidityOversampling(BME680_OS_2X);
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bme.setPressureOversampling(BME680_OS_4X);
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bme.setIIRFilterSize(BME680_FILTER_SIZE_3);
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bme.setGasHeater(320, 150); // 320*C for 150 ms
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hw_variant = HW_PROTO_V1;
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setup_pins_proto_v1();
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leds_rgbw_proto_v1.begin(); // INITIALIZE NeoPixel strip object
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}
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//SPI1.begin();
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//iaqSensor.begin(BME_CS, SPI1);
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bsec_virtual_sensor_t sensorList[10] = {
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BSEC_OUTPUT_RAW_TEMPERATURE,
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BSEC_OUTPUT_RAW_PRESSURE,
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BSEC_OUTPUT_RAW_HUMIDITY,
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BSEC_OUTPUT_RAW_GAS,
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BSEC_OUTPUT_IAQ,
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BSEC_OUTPUT_STATIC_IAQ,
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BSEC_OUTPUT_CO2_EQUIVALENT,
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BSEC_OUTPUT_BREATH_VOC_EQUIVALENT,
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BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_TEMPERATURE,
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BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY,
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};
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//String output = "\nBSEC library version " + String(iaqSensor.version.major) + "." + String(iaqSensor.version.minor) + "." + String(iaqSensor.version.major_bugfix) + "." + String(iaqSensor.version.minor_bugfix);
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//Serial.println(output);
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iaqSensor.updateSubscription(sensorList, 10, BSEC_SAMPLE_RATE_LP);
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checkIaqSensorStatus();
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// Print the header
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output = "Timestamp [ms], raw temperature [°C], pressure [hPa], raw relative humidity [%], gas [Ohm], IAQ, IAQ accuracy, temperature [°C], relative humidity [%], Static IAQ, CO2 equivalent, breath VOC equivalent";
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Serial.println(output);
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leds_clear();
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#ifndef DISABLE_WIFI
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@ -810,6 +812,18 @@ static void updateLeds(void) {
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}
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ledsSetPixelColor(IAQI_LED, r, g, b);
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if (hw_variant == HW_PROTO_V1) {
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float x = iaqSensor.iaq / 40;
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x = x < 1.0f ? 1.0f : x;
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color = colormap(x);
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r = (color & 0xFF0000) >> 16;
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g = (color & 0x00FF00) >> 8;
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b = (color & 0x0000FF);
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ledsSetPixelColor(IAQI_LED, r, g, b);
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}
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}
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void readConnectButton(void) {
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