code source
#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <ESPmDNS.h>
MDNSResponder mdns;
const char* ssid = "REPLACE_WITH_YOUR_SSID";
const char* password = "REPLACE_WITH_YOUR_PASSWORD";
WebServer server(80);
String webpage = "";
int led1 = 4;
int led2 = 5;
void setup(void) {
webpage += "<h1>ESP32 Web Server</h1><p>LED at GPIO4 <a href=\"led1ON\"><button>ON</button></a> <a href=\"led1OFF\"><button>OFF</button></a></p>";
webpage += "<p>LED at GPIO5 <a href=\"led2ON\"><button>ON</button></a> <a href=\"led2OFF\"><button>OFF</button></a></p>";
pinMode(led1, OUTPUT);
digitalWrite(led1, LOW);
pinMode(led2, OUTPUT);
digitalWrite(led2, LOW);
delay(1000);
Serial.begin(115200);
WiFi.begin(ssid, password);
Serial.println("");
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("esp")) {
Serial.println("MDNS responder started");
}
server.on("/", []() {
server.send(200, "text/html", webpage);
});
server.on("/led1ON", []() {
server.send(200, "text/html", webpage);
digitalWrite(led1, HIGH);
delay(1000);
});
server.on("/led1OFF", []() {
server.send(200, "text/html", webpage);
digitalWrite(led1, LOW);
delay(1000);
});
server.on("/led2ON", []() {
server.send(200, "text/html", webpage);
digitalWrite(led2, HIGH);
delay(1000);
});
server.on("/led2OFF", []() {
server.send(200, "text/html", webpage);
digitalWrite(led2, LOW);
delay(1000);
});
server.begin();
Serial.println("HTTP server started");
}
void loop(void) {
server.handleClient();
}
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