DIY-Smart-Door-Lock/DIY_Door_Opener_Code.ino at main · thedrmaker/DIY-Smart-Door-Lock · GitHub

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#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <DNSServer.h>
#include <Servo.h>

// --------- AP (your hotspot) ----------
const char* AP_SSID = "Dr. Maker";
const char* AP_PASS = "XXXXXXXXXXXXXX";

// --------- STA (your home/office WiFi) ----------
const char* STA_SSID = "SSID";
const char* STA_PASS = "XXXXXXXXXXXXXXXXXX";

ESP8266WebServer server(80);
DNSServer dnsServer;
const byte DNS_PORT = 53;

Servo servo;
const int SERVO_PIN = 5; // GPIO5 = D1

// ---- OPEN action ----
void doServoOpen() {
  servo.attach(5);
  servo.write(0);
  delay(1500);
  servo.detach();

  delay(100);

  servo.attach(5);
  servo.write(180);
  delay(250);
  servo.detach();
}

// ---- CLOSE action ----
void doServoClose() {
  servo.attach(5);
  servo.write(180);
  delay(1500);
  servo.detach();

  delay(100);

  servo.attach(5);
  servo.write(0);
  delay(250);
  servo.detach();
}

// ---- web page ----
String pageHTML() {
  return
    "<!DOCTYPE html><html><head>"
    "<meta name='viewport' content='width=device-width, initial-scale=1'>"
    "<title>Dr. Maker Door</title>"
    "<style>"
    "body{font-family:Arial;text-align:center;margin-top:40px;}"
    "button{font-size:22px;padding:16px 26px; margin:10px;}"
    "</style></head><body>"
    "<h2>Door Control</h2>"
    "<form action='/run' method='POST'>"
    "<button type='submit'>Open</button>"
    "</form>"
    "<form action='/close' method='POST'>"
    "<button type='submit'>Close</button>"
    "</form>"
    "</body></html>";
}

void redirectToPortal() {
  // When connected to AP, portal IP is normally 192.168.4.1
  server.sendHeader("Location", "http://192.168.4.1/", true);
  server.send(302, "text/plain", "");
}

void handleRoot() {
  server.send(200, "text/html", pageHTML());
}

void handleOpenLink() {
  doServoOpen();
  server.send(200, "text/plain", "OPEN OK");
}

void handleRun() {
  doServoOpen();
  server.send(200, "text/html",
              "<html><body style='font-family:Arial;text-align:center;margin-top:40px;'>"
              "<h3>The Door is Opened Welcome Home!!</h3><a href='/'>Back</a>"
              "</body></html>");
}

void handleClose() {
  doServoClose();
  server.send(200, "text/html",
              "<html><body style='font-family:Arial;text-align:center;margin-top:40px;'>"
              "<h3>The Door is Closed.</h3><a href='/'>Back</a>"
              "</body></html>");
}

void setup() {
  Serial.begin(115200);
  delay(200);

  // Dual mode: AP + STA
  WiFi.mode(WIFI_AP_STA);

  // Start AP
  WiFi.softAP(AP_SSID, AP_PASS);
  IPAddress apIP = WiFi.softAPIP(); // usually 192.168.4.1
  Serial.print("AP IP: ");
  Serial.println(apIP);

  // Start STA (connect to router)
  WiFi.begin(STA_SSID, STA_PASS);
  Serial.print("Connecting to STA WiFi");
  unsigned long start = millis();
  while (WiFi.status() != WL_CONNECTED && millis() - start < 15000) {
    delay(300);
    Serial.print(".");
  }
  Serial.println();

  if (WiFi.status() == WL_CONNECTED) {
    Serial.print("STA connected. STA IP: ");
    Serial.println(WiFi.localIP());
  } else {
    Serial.println("STA not connected (AP will still work).");
  }

  // Captive portal DNS for AP clients (redirect all domains to AP IP)
  dnsServer.start(DNS_PORT, "*", apIP);

  // Routes (work from BOTH: AP and STA IP)
  server.on("/", HTTP_GET, handleRoot);
  server.on("/run", HTTP_POST, handleRun);
  server.on("/close", HTTP_POST, handleClose);
  server.on("/open", HTTP_GET, handleOpenLink);

  // Captive portal probe URLs -> redirect (mainly for AP clients)
  server.on("/generate_204", HTTP_GET, redirectToPortal);              // Android
  server.on("/gen_204", HTTP_GET, redirectToPortal);
  server.on("/hotspot-detect.html", HTTP_GET, redirectToPortal);       // Apple
  server.on("/library/test/success.html", HTTP_GET, redirectToPortal); // Apple
  server.on("/connecttest.txt", HTTP_GET, redirectToPortal);           // Windows
  server.on("/ncsi.txt", HTTP_GET, redirectToPortal);

  // Anything else -> redirect to portal (AP captive behavior)
  server.onNotFound(redirectToPortal);

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

void loop() {
  dnsServer.processNextRequest();
  server.handleClient();
}