#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <ESPmDNS.h>
#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal.h>
const char *ssid = "My-Network";
const char *password = "chaker123456";
WebServer server(80);
DHT dht(20, DHT11);
LiquidCrystal lcd(2, 0, 4, 5, 6, 7);
void handleRoot() {
char msg[1500];
snprintf(msg, 1500,
"<html>\
<head>\
<meta http-equiv='refresh' content='4'/>\
<meta name='viewport' content='width=device-width, initial-scale=1'>\
<link rel='stylesheet' href='https://use.fontawesome.com/releases/v5.7.2/css/all.css' integrity='sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr' crossorigin='anonymous'>\
<title>ESP32 DHT Server</title>\
<style>\
html { font-family: Arial; display: inline-block; margin: 0px auto; text-align: center;}\
h2 { font-size: 3.0rem; }\
p { font-size: 3.0rem; }\
.units { font-size: 1.2rem; }\
.dht-labels{ font-size: 1.5rem; vertical-align:middle; padding-bottom: 15px;}\
</style>\
</head>\
<body>\
<h2>ESP32 DHT Server!</h2>\
<p>\
<i class='fas fa-thermometer-half' style='color:#ca3517;'></i>\
<span class='dht-labels'>Temperature</span>\
<span>%.2f</span>\
<sup class='units'>°C</sup>\
</p>\
<p>\
<i class='fas fa-tint' style='color:#00add6;'></i>\
<span class='dht-labels'>Humidity</span>\
<span>%.2f</span>\
<sup class='units'>%</sup>\
</p>\
</body>\
</html>",
readDHTTemperature(), readDHTHumidity()
);
server.send(200, "text/html", msg);
}
void setup(void) {
Serial.begin(115200);
dht.begin();
lcd.begin(16, 2);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.println("");
// Wait for connection
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
if (MDNS.begin("esp32")) {
Serial.println("MDNS responder started");
}
server.on("/", handleRoot);
server.begin();
Serial.println("HTTP server started");
}
void loop(void) {
server.handleClient();
float temperature = readDHTTemperature();
float humidity = readDHTHumidity();
lcd.setCursor(0, 0);
lcd.print("Temp: ");
lcd.print(temperature);
lcd.print(" C");
lcd.setCursor(0, 1);
lcd.print("Humidity: ");
lcd.print(humidity);
lcd.print("%");
delay(200);
}
float readDHTTemperature() {
// Sensor readings may also be up to 2 seconds
// Read temperature as Celsius (the default)
float t = dht.readTemperature();
if (isnan(t)) {
Serial.println("Failed to read from DHT sensor!");
return -1;
}
else {
Serial.println(t);
return t;
}
}
float readDHTHumidity() {
// Sensor readings may also be up to 2 seconds
float h = dht.readHumidity();
if (isnan(h)) {
Serial.println("Failed to read from DHT sensor!");
return -1;
}
else {
Serial.println(h);
return h;
}
}
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esp32-c3-rust-1
esp32-c3-rust-1