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nodemcu.ino
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#include <ESP8266WiFi.h>
#include <Arduino.h>
#include <Hash.h>
#include <ESPAsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <AsyncElegantOTA.h>
#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClientSecureBearSSL.h>
#include <NTPClient.h>
#include <WiFiUdp.h>
#include <time.h>
#include <SD_ZH03B.h>
#include <SoftwareSerial.h>
#include <ESP8266mDNS.h>
#include <ArduinoOTA.h>
// include wpa2 enterprise code
extern "C" {
#include "user_interface.h"
#include "wpa2_enterprise.h"
}
// SSID, Username and password. Update with yours!
static const char* ssid = "BITS-STUDENT";
static const char* username = ""; //
static const char* password = "";
const char* serverName = "https://fw.bits-pilani.ac.in:8090/login.xml";
const uint8_t fingerprint[20] = {0x47, 0x40, 0x2A, 0xAD, 0x9F, 0x38, 0x4A, 0x40, 0x50, 0x9F, 0x53, 0x5C, 0xC1, 0xBA, 0xD6, 0xBB, 0xFC, 0xBB, 0xE8, 0x3D};
const long utcOffsetInSeconds = 19800;
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
// Define NTP Client to get time
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, "pool.ntp.org", utcOffsetInSeconds);
AsyncWebServer server(80);
#define DHTPIN 2 // Digital pin connected to the DHT sensor
// Uncomment the type of sensor in use:
#define DHTTYPE DHT11 // DHT 11
//#define DHTTYPE DHT22 // DHT 22 (AM2302)
//#define DHTTYPE DHT21 // DHT 21 (AM2301)
DHT dht(DHTPIN, DHTTYPE);
// ESP8266
SoftwareSerial ZHSerial(4, 5); // RX, TX
// set the new SH06 sensor: define in the constructor
SD_ZH03B ZH03B( ZHSerial, SD_ZH03B::SENSOR_ZH06 );
// current temperature & humidity, updated in loop()
String d;
int a=0;
String b;
float t = 0.0;
float h = 0.0;
// Generally, you should use "unsigned long" for variables that hold time
// The value will quickly become too large for an int to store
unsigned long previousMillis = 0; // will store last time DHT was updated
// Updates DHT readings every 10 minutes
const long interval = 6000;
unsigned long lastTime = 0;
unsigned long timerDelay = 6000;
const char index_html[] PROGMEM = R"rawliteral(
</html><!DOCTYPE HTML>
<html>
<head>
<meta content="width=device-width, initial-scale=1" name="viewport">
<link crossorigin="anonymous" href="https://use.fontawesome.com/releases/v6.3.0/css/all.css" rel="stylesheet">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Ubuntu:wght@500&display=swap" rel="stylesheet">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Bungee:wght@400&display=swap" rel="stylesheet">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Kanit:wght@400&display=swap" rel="stylesheet">
<style>
*{
box-sizing: border-box;
padding: 0;
margin: 0;
}
html{
max-width: 100vw;
max-height: 100vh;
overflow: hidden;
}
.topright {
position: absolute;
top: 8px;
right: 16px;
font-size: 18px;
}
.justify{
display: flex;
justify-content: center;
align-content: center;
align-items: center;
}
body {
max-width: 100vw;
max-height: 100vh;
overflow: hidden;
flex-direction: column;
background: linear-gradient(-45deg, #371f53, #63458a, #837f87);
background-size: 400% 400%;
animation: gradient 15s ease infinite;
}
@keyframes gradient {
0% {
background-position: 0% 50%;
}
50% {
background-position: 100% 50%;
}
100% {
background-position: 0% 50%;
}
}
.container {
flex-direction: column;
overflow: visible;
margin-bottom: 3rem;
}
.top {
max-width: 50rem;
animation: slam-in 0.4s forwards ease-in;
}
.bottom {
position: absolute;
max-width: 50rem;
animation: slam-in 0.65s forwards ease-in;
}
.data {
flex-direction: column;
}
@keyframes slam-in {
0% {
transform: scale(18);
}
60% {
transform: scale(1);
}
80% {
transform: scale(1.6);
}
100% {
transform: scale(1);
}
}
@keyframes slide-in {
0% {
transform: translateY(50rem);
opacity: 0;
}
50% {
transform: translateY(50rem);
opacity: 0;
}
100% {
opacity: 1;
transform: translateY(0rem);
}
}
p {
font-size: 2.0rem;
}
p:nth-child(1) {
animation: slide-in 1s forwards ease-out;
}
p:nth-child(2) {
animation: slide-in 1.2s forwards ease-out;
}
p:nth-child(3) {
animation: slide-in 1.4s forwards ease-out;
}
p:nth-child(4) {
animation: slide-in 1.6s forwards ease-out;
}
.units {
font-size: 1.2rem;
padding-left: 1rem;
}
.dht{
font-size: 1.5rem;
padding-inline: 1rem;
}
</style>
</head>
<body>
<section class="container justify">
<img src="https://cdn.discordapp.com/attachments/557166230595698689/1088611560169148586/weather_only.png" alt="" class="top" >
<img src="https://cdn.discordapp.com/attachments/557166230595698689/1088611560450162758/report_only.png" alt="" class="bottom" >
</section>
<section class="data justify">
<p class="justify" style="font-family: Bungee">
<span class="dht">Time</span>
<span id="time">%TIME%</span>
<sup class="units">Hours</sup>
</p>
<p class="justify" style="font-family: Bungee">
<span class="dht">Temperature</span>
<span id="temperature">%TEMPERATURE%</span>
<sup class="units">°C</sup>
</p>
<p class="justify" style="font-family: Bungee">
<span class="dht">Humidity</span>
<span id="humidity">%HUMIDITY%</span>
<sup class="units">percent</sup>
</p>
<p class="justify" style="font-family: Bungee">
<span class="dht">AQI</span>
<span id="aqi">%AQI%</span>
</p>
</section>
<section class="topright">
<p style="font-family:Kanit">
<i class="fa-solid fa-location-dot" style="color: #e10e39;"></i>
<span style="font-size: x-large;">Pilani, RJ</span>
</p>
</section>
</body>
<script>
setInterval(function () {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("time").innerHTML = this.responseText;
}
};
xhttp.open("GET", "/time", true);
xhttp.send();
}, 1000);
setInterval(function () {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("temperature").innerHTML = this.responseText;
}
};
xhttp.open("GET", "/temperature", true);
xhttp.send();
}, 10000);
setInterval(function () {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("humidity").innerHTML = this.responseText;
}
};
xhttp.open("GET", "/humidity", true);
xhttp.send();
}, 10000);
setInterval(function () {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("aqi").innerHTML = this.responseText;
}
};
xhttp.open("GET", "/aqi", true);
xhttp.send();
}, 10000);
</script>
</html>
)rawliteral";
// Replaces placeholder with DHT values
String processor(const String& var){
//Serial.println(var);
if(var == "TIME"){
return String(d);
}
else if(var == "TEMPERATURE"){
return String(t);
}
else if(var == "HUMIDITY"){
return String(h);
}
else if(var == "AQI"){
return String(b);
}
return String();
}
void refresh()
{
//Check WiFi connection status
if(WiFi.status()== WL_CONNECTED){
HTTPClient https;
std::unique_ptr<BearSSL::WiFiClientSecure>client(new BearSSL::WiFiClientSecure);
client->setFingerprint(fingerprint);
// Your Domain name with URL path or IP address with path
https.begin(*client, serverName);
// Specify content-type header
https.addHeader("Content-Type", "application/x-www-form-urlencoded");
https.addHeader("Set-Cookie", "_ga=GA1.3.722215691.1676912122");
https.setUserAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36");
https.setReuse("keep-alive");
// Data to send with HTTP POST
String httpsRequestData = "mode=191&username=xx&password=xx%23&a=1676990764047&producttype=0"; //username and passwd should be filled
// Send HTTP POST request
int httpsResponseCode = https.POST(httpsRequestData);
//Serial.print("HTTP Response code: ");
//Serial.println(httpResponseCode);
// Free resources
https.end();
}
else {
Serial.println("Internet Disconnected");
}
lastTime = millis();
}
void readSensorData() {
char printbuf1[80];
if( ZH03B.readData() ) {
Serial.print( ZH03B.getMode() == SD_ZH03B::IU_MODE ? "IU:" : "Q&A:" );
sprintf(printbuf1, "PM1.0, PM2.5, PM10=[%d %d %d]", ZH03B.getPM1_0(), ZH03B.getPM2_5(), ZH03B.getPM10_0() );
Serial.println(printbuf1);
} else {
Serial.println( "ZH06 Error reading stream or Check Sum Error" );
}
}
void setup(){
// Serial port for debugging purposes
Serial.begin(9600);
dht.begin();
ZHSerial.begin(9600);
ZH03B.wakeup();
ZH03B.setInitiativeMode();
// Setting ESP into STATION mode only (no AP mode or dual mode)
wifi_set_opmode(STATION_MODE);
struct station_config wifi_config;
memset(&wifi_config, 0, sizeof(wifi_config));
strcpy((char*)wifi_config.ssid, ssid);
wifi_station_set_config(&wifi_config);
// Clean up to be sure no old data is still inside
wifi_station_clear_cert_key();
wifi_station_clear_enterprise_ca_cert();
wifi_station_set_wpa2_enterprise_auth(1);
wifi_station_set_enterprise_username((uint8*)username, strlen(username));
wifi_station_set_enterprise_identity((uint8*)username, strlen(username));
wifi_station_set_enterprise_password((uint8*)password, strlen(password));
wifi_station_connect();
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.print(".");
}
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
timeClient.begin();
// Route for root / web page
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/html", index_html, processor);
});
server.on("/time", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/plain", String(d).c_str());
});
server.on("/temperature", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/plain", String(t).c_str());
});
server.on("/humidity", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/plain", String(h).c_str());
});
server.on("/aqi", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/plain", String(b).c_str());
});
AsyncElegantOTA.begin(&server);
// Start server
server.begin();
refresh();
}
String c;
void AQItable()
{
if (a < 30)
{
b = "Good";
}
else if (30 < a < 60)
{
b = "Satisfactory";
}
else if (60 < a < 90)
{
b = "Moderately Polluted";
}
else if (90 < a < 120)
{
b = "Poor";
}
else if (120 < a < 250)
{
b = "Very poor";
}
else if (a > 250)
{
b = "Severe";
}
}
void loop() {
timeClient.update();
d = timeClient.getFormattedTime();
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
// save the last time you updated the DHT values
previousMillis = currentMillis;
readSensorData();
a = ZH03B.getPM2_5();
AQItable();
float newT = dht.readTemperature();
if (isnan(newT)) {
Serial.println("Failed to read from DHT sensor!");
}
else {
t = newT;
Serial.println(t);
}
float newH = dht.readHumidity();
if (isnan(newH)) {
Serial.println("Failed to read from DHT sensor!");
}
else {
h = newH;
Serial.println(h);
}
}
}