Wokwi - Online ESP32, STM32, Arduino Simulator

/* ESP32 HTTP IoT Server Example for Wokwi.com

  https://wokwi.com/projects/320964045035274834

  To test, you need the Wokwi IoT Gateway, as explained here:

  https://docs.wokwi.com/guides/esp32-wifi#the-private-gateway

  Then start the simulation, and open http://localhost:9080
  in another browser tab.

  Note that the IoT Gateway requires a Wokwi Club subscription.
  To purchase a Wokwi Club subscription, go to https://wokwi.com/club
*/

#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <uri/UriBraces.h>
#include <ESP8266mDNS.h>        // Include the mDNS library

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""

WebServer server(80);

const int RELAY = 15;

bool _isClosed = false;

void setup(void) {
  Serial.begin(115200);

  pinMode(RELAY, OUTPUT);

  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);

  Serial.print("Connecting to WiFi ");
  Serial.print(WIFI_SSID);

  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");

  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  server.on(UriBraces("/status"), []() {
    Serial.println("Reporting status...");

    String response = R"(
    <!DOCTYPE html><html><head><title>Status</title></head>
      <body>OPEN_CLOSED_STATUS</body>
    </html>
    )";
    response.replace("OPEN_CLOSED_STATUS", _isClosed ? "Closed" : "Open");
    server.send(200, "text/html", response);
  });
  server.on(UriBraces("/pulse"), []() {
    Serial.println("Pulse relay...");

    digitalWrite(RELAY, HIGH);
    delay(1000);
    digitalWrite(RELAY, LOW);

    String response = R"(
    <!DOCTYPE html><html><head><title>Response</title></head>
      <body>Pulsed</body>
    </html>
    )";
    server.send(200, "text/html", response);
  });

  server.begin();
  Serial.println("HTTP server started");
}

void loop(void) {
  server.handleClient();
  delay(100);
}