void handleRoot() { float h = dht.readHumidity(); float t = dht.readTemperature(); String html = "<!DOCTYPE html><html><head><meta http-equiv='refresh' content='5'></head><body>"; html += "<h1>ESP32 Weather Station</h1>"; html += "<p>Humidity: " + String(h) + " %</p>"; html += "<p>Temperature: " + String(t) + " °C</p>"; html += "</body></html>"; server.send(200, "text/html", html); }
void setup() { Serial.begin(115200); dht.begin(); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println("\nIP address: " + WiFi.localIP().toString()); server.on("/", handleRoot); server.begin(); } hands-on esp32 with arduino ide pdf free download
DHT dht(DHTPIN, DHTTYPE); WebServer server(80); void handleRoot() { float h = dht
void loop() { Serial.println("Scanning..."); int n = WiFi.scanNetworks(); Serial.print("Found "); Serial.print(n); Serial.println(" networks"); for (int i = 0; i < n; i++) { Serial.print(i + 1); Serial.print(": "); Serial.print(WiFi.SSID(i)); Serial.print(" ("); Serial.print(WiFi.RSSI(i)); Serial.print(" dBm)"); Serial.println((WiFi.encryptionType(i) == WIFI_AUTH_OPEN) ? " [Open]" : " [Secured]"); delay(10); } Serial.println("----------------"); delay(5000); } Select your board (Tools -> Board -> ESP32 Dev Module) and the correct COM Port. Click Upload. Project 1: Building a Weather Station (Hands-On Example) A standard "hands-on" PDF will have you build a web server. Here is a condensed version you can try immediately using a DHT11 sensor. Project 1: Building a Weather Station (Hands-On Example)