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lsdlsd88
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/********************************************
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－－－－深圳市晶彩智能有限公司－－－－
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File name：40.WIFI Web Servers LED.ino
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Version：V2.0
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说明：WIFI Web Server DHT11Temperature and humidity sensor experiment
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********************************************/
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#include <WiFi.h>
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#include <ESPAsyncWebServer.h>
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#include <Adafruit_Sensor.h>
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#include <DHT.h>
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// Enter your WIFI account and password
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const char* ssid = "CMCC-404";
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const char* password = "12345678";
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#define DHTPIN 27 // Digital pins to connect the DHT sensor
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// Uncomment the sensor type in use:
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#define DHTTYPE DHT11 // DHT 11
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DHT dht(DHTPIN, DHTTYPE);
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// Create AsyncWebServer object on port 80
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AsyncWebServer server(80);
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String readDHTTemperature() {
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// The sensor reading can also be up to 2 seconds "old" (this is a very slow sensor)
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// Read temperature in degrees Celsius (default)
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float t = dht.readTemperature();
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// Read temperature as Fahrenheit (isFahrenheit = true)
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// float t = dht.readTemperature(true);
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// Check if any reads failed and exit early (try again).
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if (isnan(t)) {
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Serial.println("Failed to read from DHT sensor!");
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return "--";
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}
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else {
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Serial.println(t);
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return String(t);
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}
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}
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String readDHTHumidity() {
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// The sensor reading can also be up to 2 seconds "old" (this is a very slow sensor)
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float h = dht.readHumidity();
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if (isnan(h)) {
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Serial.println("Failed to read from DHT sensor!");
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return "--";
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}
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else {
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Serial.println(h);
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return String(h);
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}
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}
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const char index_html[] PROGMEM = R"rawliteral(
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<!DOCTYPE HTML><html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
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<style>
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html {
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font-family: Arial;
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display: inline-block;
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margin: 0px auto;
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text-align: center;
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}
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h2 { font-size: 3.0rem; }
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p { font-size: 3.0rem; }
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.units { font-size: 1.2rem; }
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.dht-labels{
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font-size: 1.5rem;
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vertical-align:middle;
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padding-bottom: 15px;
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}
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</style>
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</head>
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<body>
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<h2>ESP32 DHT11 Server</h2>
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<p>
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<i class="fas fa-thermometer-half" style="color:#059e8a;"></i>
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<span class="dht-labels">Temperature</span>
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<span id="temperature">%TEMPERATURE%</span>
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<sup class="units">°C</sup>
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</p>
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<p>
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<i class="fas fa-tint" style="color:#00add6;"></i>
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<span class="dht-labels">Humidity</span>
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<span id="humidity">%HUMIDITY%</span>
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<sup class="units">%</sup>
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</p>
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</body>
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<script>
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setInterval(function ( ) {
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var xhttp = new XMLHttpRequest();
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xhttp.onreadystatechange = function() {
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if (this.readyState == 4 && this.status == 200) {
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document.getElementById("temperature").innerHTML = this.responseText;
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}
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};
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xhttp.open("GET", "/temperature", true);
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xhttp.send();
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}, 10000 ) ;
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setInterval(function ( ) {
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var xhttp = new XMLHttpRequest();
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xhttp.onreadystatechange = function() {
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if (this.readyState == 4 && this.status == 200) {
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document.getElementById("humidity").innerHTML = this.responseText;
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}
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};
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xhttp.open("GET", "/humidity", true);
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xhttp.send();
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}, 10000 ) ;
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</script>
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</html>)rawliteral";
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// Replace placeholders with DHT values
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String processor(const String& var){
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//Serial.println(var);
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if(var == "TEMPERATURE"){
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return readDHTTemperature();
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}
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else if(var == "HUMIDITY"){
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return readDHTHumidity();
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}
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return String();
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}
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void setup(){
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// Serial port for debugging
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Serial.begin(115200);
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dht.begin();
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// Connect to a wireless network
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED) {
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delay(1000);
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Serial.println("Connecting to WiFi..");
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}
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// Print ESP32 local IP address
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Serial.println(WiFi.localIP());
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// The root/page of the route
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server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
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request->send_P(200, "text/html", index_html, processor);
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});
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server.on("/temperature", HTTP_GET, [](AsyncWebServerRequest *request){
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request->send_P(200, "text/plain", readDHTTemperature().c_str());
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});
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server.on("/humidity", HTTP_GET, [](AsyncWebServerRequest *request){
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request->send_P(200, "text/plain", readDHTHumidity().c_str());
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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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}
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@@ -0,0 +1,30 @@
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Started logging.
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2022/06/27 13:59:18 logging to c:\Users\zhang'pei\Desktop\ESP32-2432S028例子\arduino\Source code\4_10_WIFI Web Servers DHT11\WIFI Web Servers DHT11\inols.log
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2022/06/27 13:59:18 Initial board configuration: {"ESP32 Dev Module" esp32:esp32:esp32}
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2022/06/27 13:59:18 Language server build path: C:\Users\zhang'pei\AppData\Local\Temp\arduino-language-server102612787
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2022/06/27 13:59:18 Language server build sketch root: C:\Users\zhang'pei\AppData\Local\Temp\arduino-language-server102612787\sketch
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2022/06/27 13:59:18 [92mIDE --> LS CL: REQUEST initialize 0: [0m
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2022/06/27 13:59:18 IDE --> initialize 0 [93m locked[0m
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2022/06/27 13:59:18 IDE --> initialize 0 [93m unlocked[0m
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2022/06/27 13:59:18 INIT--- initializing workbench
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2022/06/27 13:59:18 INIT--- [93m locked[0m
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2022/06/27 13:59:18 [91mIDE <-- LS CL: ANSWER UNBOUND (0): [0m
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2022/06/27 13:59:18 --> initialize(file:///c%3A/Users/zhang%27pei/Desktop/ESP32-2432S028%E4%BE%8B%E5%AD%90/arduino/Source%20code/4_10_WIFI%20Web%20Servers%20DHT11/WIFI%20Web%20Servers%20DHT11)
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2022/06/27 13:59:18 running: d:\arduino\Arduino IDE\resources\app\node_modules\arduino-ide-extension\build\arduino-cli.exe --config-file c:\Users\zhang'pei\.arduinoIDE\arduino-cli.yaml compile --fqbn esp32:esp32:esp32 --only-compilation-database --clean --source-override C:\Users\ZHANG'~1\AppData\Local\Temp\972759286 --build-path C:\Users\zhang'pei\AppData\Local\Temp\arduino-language-server102612787 --format json C:\Users\zhang'pei\Desktop\ESP32-2432S028例子\arduino\Source code\4_10_WIFI Web Servers DHT11\WIFI Web Servers DHT11
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2022/06/27 13:59:18 [92mIDE --> LS CL: NOTIFICATION initialized: [0m
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2022/06/27 13:59:20 INIT--- initializing workbench (done)
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2022/06/27 13:59:20 INIT--- [93m unlocked[0m
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2022/06/27 13:59:20 IDE --> initialized notif1 [93m read-locked[0m
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2022/06/27 13:59:20 IDE --> initialized notif1 notification is not propagated to clangd
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2022/06/27 13:59:20 IDE --> initialized notif1 [93m read-unlocked[0m
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2022/06/27 13:59:20 [92mIDE --> LS CL: NOTIFICATION textDocument/didOpen: [0m
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2022/06/27 13:59:20 IDE --> textDocument/didOpen notif2 [93m locked[0m
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2022/06/27 13:59:20 IDE --> textDocument/didOpen notif2 (throttled: waiting for clangd)
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2022/06/27 13:59:20 IDE --> textDocument/didOpen notif2 [93m unlocked (waiting clangd)[0m
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