Updated for temp and humidity
This commit is contained in:
Hickmeister
314
AirQuality.ino
314
AirQuality.ino
@@ -1,35 +1,86 @@
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#include <WiFi.h>
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#include <ESPAsyncWebServer.h>
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#include "DFRobot_ENS160.h"
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#include "Adafruit_AHTX0.h"
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// Wi-Fi credentials
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const char* ssid = "MegMan-WiFi";
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const char* password = "Zp5egGamPcENXr";
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const char* ssid = "HickmanWiFi";
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const char* password = "BlackBriar8787@@";
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// I2C Communication setup
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DFRobot_ENS160_I2C ENS160(&Wire, 0x53); // Default I2C address is 0x53
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DFRobot_ENS160_I2C ENS160(&Wire, 0x53); // ENS160 I2C address
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Adafruit_AHTX0 aht; // AHTX0 instance
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AsyncWebServer server(80);
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String jsonData = "[]"; // JSON buffer to hold the air quality data
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uint8_t lastAQI = 0; // Store the last AQI value for display
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// Buffer to store historical data
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struct SensorData {
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time_t timestamp; // Use NTP time
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uint16_t tvoc;
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uint16_t eco2;
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uint8_t aqi;
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float temperature;
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float humidity;
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};
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const int BUFFER_SIZE = 60; // Store 60 entries
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SensorData sensorBuffer[BUFFER_SIZE];
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int bufferIndex = 0;
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// Function to sync time with NTP server
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void syncTime() {
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configTime(0, 0, "time.nist.gov", "pool.ntp.org");
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Serial.println("Waiting for time synchronization...");
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while (!time(nullptr)) {
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delay(1000);
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Serial.print(".");
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}
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Serial.println("\nTime synchronized!");
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}
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// Function to format the time into a human-readable string
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String formatTime(time_t rawTime) {
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char buffer[30];
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struct tm* timeInfo = localtime(&rawTime);
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strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", timeInfo);
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return String(buffer);
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}
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// Function to calibrate ENS160 using AHTX0 readings
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void calibrateENS160() {
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sensors_event_t tempEvent, humidityEvent;
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aht.getEvent(&humidityEvent, &tempEvent);
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float temperature = tempEvent.temperature;
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float humidity = humidityEvent.relative_humidity;
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ENS160.setTempAndHum(temperature, humidity);
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Serial.printf("Calibrated ENS160 with Temp: %.1f°C, Hum: %.1f%%\n", temperature, humidity);
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}
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void prepopulateBuffer() {
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sensors_event_t tempEvent, humidityEvent;
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aht.getEvent(&humidityEvent, &tempEvent);
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uint16_t TVOC = ENS160.getTVOC();
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uint16_t ECO2 = ENS160.getECO2();
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uint8_t AQI = ENS160.getAQI();
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for (int i = 0; i < BUFFER_SIZE; i++) {
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sensorBuffer[i] = {
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time(nullptr),
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TVOC,
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ECO2,
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AQI,
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tempEvent.temperature,
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humidityEvent.relative_humidity
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};
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}
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bufferIndex = BUFFER_SIZE;
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}
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void setup() {
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Serial.begin(115200);
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// Initialise the sensor
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while (NO_ERR != ENS160.begin()) {
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Serial.println("Communication with ENS160 failed. Please check connections.");
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delay(3000);
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}
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Serial.println("ENS160 initialised successfully.");
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// Set power mode
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ENS160.setPWRMode(ENS160_STANDARD_MODE);
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// Set temperature and humidity compensation
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ENS160.setTempAndHum(25.0, 50.0); // Example values: 25°C, 50% humidity
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// Connect to Wi-Fi
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED) {
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@@ -40,6 +91,30 @@ void setup() {
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Serial.print("ESP32 IP Address: ");
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Serial.println(WiFi.localIP());
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// Sync time using NTP
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syncTime();
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// Initialize AHTX0 sensor
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if (!aht.begin()) {
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Serial.println("AHTX0 initialization failed. Check the connection!");
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while (1) delay(1000);
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}
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Serial.println("AHTX0 initialized successfully.");
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// Initialize ENS160 sensor
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while (NO_ERR != ENS160.begin()) {
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Serial.println("Communication with ENS160 failed. Please check connections.");
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delay(3000);
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}
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Serial.println("ENS160 initialized successfully.");
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ENS160.setPWRMode(ENS160_STANDARD_MODE);
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// Calibrate ENS160 with AHTX0 readings
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calibrateENS160();
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// Prepopulate the buffer with initial readings
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prepopulateBuffer();
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// Route for the main webpage
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server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
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String html = R"rawliteral(
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@@ -60,39 +135,33 @@ void setup() {
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margin-top: 20px;
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}
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.card {
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background: #1e1e1e;
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border: 1px solid #333333;
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}
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.card.excellent {
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background-color: #4CAF50;
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color: #ffffff;
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}
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.card.good {
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background-color: #8BC34A;
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color: #ffffff;
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}
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.card.moderate {
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background-color: #ffa007;
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color: #000000;
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}
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.card.poor {
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background-color: #ff4722;
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background-color: #ff5722;
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color: #ffffff;
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}
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.card.unhealthy {
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background-color: #de36f4;
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}
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.apexcharts-canvas {
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background: #1e1e1e;
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background-color: #f44336;
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color: #ffffff;
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}
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.apexcharts-tooltip {
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background: #333333 !important;
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color: #ffffff !important;
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border: 1px solid #333333 !important;
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}
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.dark-mode .card {
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background: #1e1e1e;
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}
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.dark-mode .card-title, .dark-mode p {
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color: #bebcbc;
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}
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</style>
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</head>
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<body>
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@@ -103,7 +172,7 @@ void setup() {
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<div id="aqiCard" class="card text-center">
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<div class="card-body">
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<h5 class="card-title">Air Quality Index (AQI)</h5>
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<h4 id="aqiValue">Value: Loading...</h4>
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<h4 id="aqiValue">Loading...</h4>
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<p id="aqiRecommendation">Loading recommendation...</p>
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</div>
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</div>
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@@ -111,8 +180,8 @@ void setup() {
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<div class="col-md-4">
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<div id="eco2Card" class="card text-center">
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<div class="card-body">
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<h5 class="card-title">eCO2 Recommendation</h5>
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<h4 id="eco2Value">Value: Loading...</h4>
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<h5 class="card-title">eCO2 (ppm)</h5>
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<h4 id="eco2Value">Loading...</h4>
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<p id="eco2Recommendation">Loading recommendation...</p>
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</div>
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</div>
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@@ -120,13 +189,31 @@ void setup() {
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<div class="col-md-4">
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<div id="tvocCard" class="card text-center">
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<div class="card-body">
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<h5 class="card-title">TVOC Recommendation</h5>
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<h4 id="tvocValue">Value: Loading...</h4>
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<h5 class="card-title">TVOC (ppb)</h5>
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<h4 id="tvocValue">Loading...</h4>
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<p id="tvocRecommendation">Loading recommendation...</p>
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</div>
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</div>
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</div>
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</div>
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<div class="row mt-4">
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<div class="col-md-6">
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<div id="temperatureCard" class="card text-center">
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<div class="card-body">
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<h5 class="card-title">Temperature (°C)</h5>
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<h4 id="temperatureValue">Loading...</h4>
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</div>
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</div>
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</div>
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<div class="col-md-6">
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<div id="humidityCard" class="card text-center">
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<div class="card-body">
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<h5 class="card-title">Humidity (%)</h5>
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<h4 id="humidityValue">Loading...</h4>
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</div>
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</div>
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</div>
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</div>
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<div class="row mt-4">
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<div class="col-md-12">
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<div class="card dark-mode">
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@@ -143,37 +230,18 @@ void setup() {
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chart: {
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type: 'line',
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height: 350,
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animations: {
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enabled: true,
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easing: 'linear',
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dynamicAnimation: { speed: 1000 }
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},
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toolbar: { show: false },
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zoom: { enabled: false },
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animations: { enabled: true, easing: 'linear', dynamicAnimation: { speed: 1000 } },
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background: '#1e1e1e'
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},
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series: [
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{ name: 'TVOC (ppb)', data: [] },
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{ name: 'eCO2 (ppm)', data: [] }
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{ name: 'eCO2 (ppm)', data: [] },
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{ name: 'Temperature (°C)', data: [] },
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{ name: 'Humidity (%)', data: [] }
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],
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xaxis: {
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type: 'datetime',
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labels: { style: { colors: '#ffffff' } },
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range: 60000 // 1-minute range
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},
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yaxis: {
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labels: {
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style: { colors: '#ffffff' },
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formatter: function (val) { return Math.round(val); }
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}
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},
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tooltip: {
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theme: 'dark'
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},
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grid: { borderColor: '#333333' },
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stroke: { curve: 'smooth' },
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dataLabels: { enabled: false },
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legend: { labels: { colors: '#ffffff' } }
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xaxis: { type: 'datetime', labels: { style: { colors: '#ffffff' } } },
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yaxis: { labels: { style: { colors: '#ffffff' } } },
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tooltip: { theme: 'dark' },
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};
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let chart = new ApexCharts(document.querySelector("#chart"), chartOptions);
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@@ -183,33 +251,35 @@ void setup() {
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const response = await fetch('/data');
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const data = await response.json();
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const tvocData = data.map(item => [item.timestamp, item.tvoc]);
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const eco2Data = data.map(item => [item.timestamp, item.eco2]);
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console.log(data.latest.humidity);
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updateCard("aqiCard", data.latest.aqi, getAQIRecommendation(data.latest.aqi));
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updateCard("eco2Card", data.latest.eco2, getECO2Recommendation(data.latest.eco2));
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updateCard("tvocCard", data.latest.tvoc, getTVOCRecommendation(data.latest.tvoc));
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updateCard("temperatureCard", data.latest.temperature, getTemperatureClass(data.latest.temperature));
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updateCard("humidityCard", data.latest.humidity, getHumidityClass(data.latest.humidity));
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chart.updateSeries([
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{ name: 'TVOC (ppb)', data: tvocData },
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{ name: 'eCO2 (ppm)', data: eco2Data }
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{ name: 'TVOC (ppb)', data: data.history.tvoc },
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{ name: 'eCO2 (ppm)', data: data.history.eco2 },
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{ name: 'Temperature (°C)', data: data.history.temperature },
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{ name: 'Humidity (%)', data: data.history.humidity }
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]);
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const latest = data[data.length - 1];
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updateCard("aqiCard", latest.aqi, getAQIRecommendation(latest.aqi));
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updateCard("eco2Card", latest.eco2, getECO2Recommendation(latest.eco2));
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updateCard("tvocCard", latest.tvoc, getTVOCRecommendation(latest.tvoc));
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}
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function updateCard(cardId, value, recommendation) {
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const card = document.getElementById(cardId);
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const valueText = card.querySelector(".card-body h4");
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const recText = card.querySelector(".card-body p");
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const valueText = card.querySelector(".card-body h4:nth-of-type(1)");
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card.className = `card text-center ${recommendation.class}`;
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valueText.textContent = `${value}`;
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valueText.textContent = value.toFixed(1);
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recText.textContent = recommendation.text;
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}
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function getAQIRecommendation(aqi) {
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if (aqi === 1) return { class: "excellent", text: "Suitable for long-term living." };
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if (aqi === 2) return { class: "good", text: "Maintain adequate ventilation." };
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if (aqi === 3) return { class: "moderate", text: "Strengthen ventilation, close to water sources." };
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if (aqi === 3) return { class: "moderate", text: "Strengthen ventilation." };
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if (aqi === 4) return { class: "poor", text: "Find pollution sources, ventilate more." };
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return { class: "unhealthy", text: "Avoid staying long; ventilate." };
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}
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@@ -229,46 +299,90 @@ void setup() {
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return { class: "excellent", text: "No effects on health." };
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}
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setInterval(fetchData, 1000); // Update data every second
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function getTemperatureClass(temp) {
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if (temp < 18) return { class: "moderate", text: "Too cold, consider heating." };
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if (temp > 26) return { class: "poor", text: "Too hot, ventilate or cool down." };
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return { class: "good", text: "Comfortable temperature." };
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}
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function getHumidityClass(hum) {
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if (hum < 30) return { class: "moderate", text: "Too dry, consider humidifying." };
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if (hum > 60) return { class: "poor", text: "Too humid, consider dehumidifying." };
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return { class: "good", text: "Comfortable humidity." };
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}
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setInterval(fetchData, 1000);
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</script>
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</body>
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</html>
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)rawliteral";
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request->send(200, "text/html", html);
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});
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// Route for sensor data (JSON)
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server.on("/data", HTTP_GET, [](AsyncWebServerRequest *request) {
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request->send(200, "application/json", jsonData);
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uint16_t TVOC = ENS160.getTVOC();
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uint16_t ECO2 = ENS160.getECO2();
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uint8_t AQI = ENS160.getAQI();
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sensors_event_t tempEvent, humidityEvent;
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aht.getEvent(&humidityEvent, &tempEvent);
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sensorBuffer[bufferIndex] = {
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time(nullptr), // Use current NTP time
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TVOC,
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ECO2,
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AQI,
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tempEvent.temperature,
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humidityEvent.relative_humidity
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};
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bufferIndex = (bufferIndex + 1) % BUFFER_SIZE;
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String json = "{\"latest\":{";
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json += "\"tvoc\":" + String(TVOC) + ",";
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json += "\"eco2\":" + String(ECO2) + ",";
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json += "\"aqi\":" + String(AQI) + ",";
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json += "\"temperature\":" + String(tempEvent.temperature) + ",";
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json += "\"humidity\":" + String(humidityEvent.relative_humidity);
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json += "},\"history\":{";
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json += "\"tvoc\":[";
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for (int i = 0; i < BUFFER_SIZE; i++) {
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int index = (bufferIndex + i) % BUFFER_SIZE;
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if (sensorBuffer[index].timestamp == 0) continue;
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if (i > 0) json += ",";
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json += "[\"" + formatTime(sensorBuffer[index].timestamp) + "\"," + String(sensorBuffer[index].tvoc) + "]";
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}
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json += "],\"eco2\":[";
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for (int i = 0; i < BUFFER_SIZE; i++) {
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int index = (bufferIndex + i) % BUFFER_SIZE;
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if (sensorBuffer[index].timestamp == 0) continue;
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if (i > 0) json += ",";
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json += "[\"" + formatTime(sensorBuffer[index].timestamp) + "\"," + String(sensorBuffer[index].eco2) + "]";
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}
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json += "],\"temperature\":[";
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for (int i = 0; i < BUFFER_SIZE; i++) {
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int index = (bufferIndex + i) % BUFFER_SIZE;
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if (sensorBuffer[index].timestamp == 0) continue;
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if (i > 0) json += ",";
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json += "[\"" + formatTime(sensorBuffer[index].timestamp) + "\"," + String(sensorBuffer[index].temperature) + "]";
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}
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json += "],\"humidity\":[";
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for (int i = 0; i < BUFFER_SIZE; i++) {
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int index = (bufferIndex + i) % BUFFER_SIZE;
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if (sensorBuffer[index].timestamp == 0) continue;
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if (i > 0) json += ",";
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json += "[\"" + formatTime(sensorBuffer[index].timestamp) + "\"," + String(sensorBuffer[index].humidity) + "]";
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}
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json += "]}}";
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request->send(200, "application/json", json);
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});
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// Start the server
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server.begin();
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}
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void loop() {
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uint16_t TVOC = ENS160.getTVOC();
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uint16_t ECO2 = ENS160.getECO2();
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uint8_t AQI = ENS160.getAQI();
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// Periodically calibrate the ENS160 sensor
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calibrateENS160();
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unsigned long timestamp = millis();
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String newEntry = "{\"timestamp\":" + String(timestamp) + ",\"tvoc\":" + String(TVOC) + ",\"eco2\":" + String(ECO2) + ",\"aqi\":" + String(AQI) + "}";
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if (jsonData == "[]") {
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jsonData = "[" + newEntry + "]";
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} else {
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jsonData = jsonData.substring(0, jsonData.length() - 1) + "," + newEntry + "]";
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}
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||||
// Limit data buffer to 60 entries (last minute)
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||||
int maxEntries = 60;
|
||||
int count = std::count(jsonData.begin(), jsonData.end(), '{');
|
||||
if (count > maxEntries) {
|
||||
int firstComma = jsonData.indexOf(',');
|
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jsonData = "[" + jsonData.substring(firstComma + 1);
|
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}
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||||
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delay(1000); // Update every second
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// Delay for the main loop
|
||||
delay(15000); // Calibrate every 10 seconds
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user