#include <WiFi.h> #include <WebServer.h>
const char* ssid = "ESP32";
const char* password = "12345678";
IPAddress local_ip(192, 168, 1, 1); IPAddress gateway(192, 168, 1, 1); IPAddress subnet(255, 255, 255, 0);
WebServer server(80);
uint8_t LED1pin = 2; bool LED1status = LOW;
void setup() {
Serial.begin(115200);
pinMode(LED1pin, OUTPUT);
WiFi.softAP(ssid, password);
WiFi.softAPConfig(local_ip, gateway, subnet);
delay(100);
server.on("/", handle_OnConnect);
server.on("/led1on", handle_led1on);
server.on("/led1off", handle_led1off);
server.onNotFound(handle_NotFound);
server.begin();
Serial.println("HTTP server started"); }
void loop() {
server.handleClient();
if (LED1status){
digitalWrite(LED1pin,HIGH);
}
else {
digitalWrite(LED1pin,LOW);} }
void handle_OnConnect() {
LED1status = LOW;
Serial.println("GPIO2 Status: OFF | GPIO4 Status: OFF");
server.send(200, "text/html",SendHTML(LED1status));
}
void handle_led1on() {
LED1status = HIGH;
Serial.println("GPIO2 Status: ON");
server.send(200, "text/html",
}
void handle_led1off() {
LED1status = LOW; Serial.println("GPIO2 Status: server.send(200, "text/html",
LED2status)); }
OFF | GPIO4 Status: OFF"); SendHTML(LED1status,
ON"); SendHTML(true,
OFF"); SendHTML(false,
void handle_led2on() {
LED2status = HIGH;
Serial.println("GPIO4 Status: ON"); server.send(200, "text/html", SendHTML(LED1status,
true)); }
void handle_led2off() {
LED2status = LOW;
Serial.println("GPIO4 Status: OFF"); server.send(200, "text/html", SendHTML(LED1status,
false)); }
void handle_NotFound() {
server.send(404, "text/plain", "Not found");
}
String SendHTML(uint8_t led1stat, uint8_t led2stat) { String ptr = "<!DOCTYPE html> <html>\n";
ptr += "<head><meta name=\"viewport\"
content=\"width=device-width, initial-scale=1.0, user- scalable=no\">\n";
ptr += "<title>LED Control</title>\n";
ptr += "<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}\n";
ptr += "body{margin-top: 50px;} h1 {color: #444444;margin: 50px auto 30px;} h3 {color: #444444;margin-bottom: 50px;}\n";
ptr += ".button {display: block;width: 80px;background- color: #3498db;border: none;color: white;padding: 13px 30px;text-decoration: none;font-size: 25px;margin: 0px auto 35px;cursor: pointer;border-radius: 4px;}\n";
ptr += ".button-on {background-color: #3498db;}\n";
ptr += ".button-on:active {background-color: #2980b9;}\n";
ptr += ".button-off {background-color: #34495e;}\n";
ptr += ".button-off:active {background-color: #2c3e50;}\n";
ptr += "p {font-size: 14px;color: #888;margin-bottom: 10px;}\n";
ptr += "</style>\n";
ptr += "</head>\n";
ptr += "<body>\n";
ptr += "<h1>ESP32 Web Server</h1>\n";
ptr += "<h3>Using Access Point(AP) Mode</h3>\n";
if (led1stat) {
ptr += "<p>LED1 Status: ON</p><a class=\"button button-off\" href=\"/led1off\">OFF</a>\n";
} else {
ptr += "<p>LED1 Status: OFF</p><a class=\"button button-on\" href=\"/led1on\">ON</a>\n";
}
if (led2stat) {
ptr += "<p>LED2 Status: ON</p><a class=\"button button-off\" href=\"/led2off\">OFF</a>\n";
} else {
ptr += "<p>LED2 Status: OFF</p><a class=\"button button-on\" href=\"/led2on\">ON</a>\n";
}
ptr += "</body>\n"; ptr += "</html>\n"; return ptr;
}