From eb77a811886dbef80616cb3acdf98f5fb98336cb Mon Sep 17 00:00:00 2001
From: vlapa <vlapa@ya.ru>
Date: Sat, 13 Jun 2026 21:20:11 +0300
Subject: First

---
 .gitignore              |   5 ++
 .vscode/extensions.json |  10 +++
 platformio.ini          |  17 +++++
 src/main.cpp            | 174 ++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 206 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 .vscode/extensions.json
 create mode 100644 platformio.ini
 create mode 100644 src/main.cpp

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..89cc49c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..080e70d
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,10 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}
diff --git a/platformio.ini b/platformio.ini
new file mode 100644
index 0000000..845de51
--- /dev/null
+++ b/platformio.ini
@@ -0,0 +1,17 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:esp32-c3-devkitc-02]
+platform = espressif32
+board = esp32-c3-devkitc-02
+framework = arduino
+
+monitor_speed = 115200
+upload_speed = 921600
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..563f617
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,174 @@
+#include <Arduino.h>
+
+#include <WiFi.h>
+#include <WiFiClient.h>
+#include <WebServer.h>
+#include <ESPmDNS.h>
+#include <Update.h>
+const char *host = "esp32";
+const char *ssid = "link";
+const char *password = "dkfgf#*12091997";
+// variabls to blink without delay:
+const int led = 2;
+WebServer server(80);
+
+/*
+ * Login page
+ */
+const char *loginIndex =
+    "<form name='loginForm'>"
+    "<table width='20%' bgcolor='A09F9F' align='center'>"
+    "<tr>"
+    "<td colspan=2>"
+    "<center><font size=4><b>ESP32 Login Page</b></font></center>"
+    "<br>"
+    "</td>"
+    "<br>"
+    "<br>"
+    "</tr>"
+    "<td>Username:</td>"
+    "<td><input type='text' size=25 name='userid'><br></td>"
+    "</tr>"
+    "<br>"
+    "<br>"
+    "<tr>"
+    "<td>Password:</td>"
+    "<td><input type='Password' size=25 name='pwd'><br></td>"
+    "<br>"
+    "<br>"
+    "</tr>"
+    "<tr>"
+    "<td><input type='submit' onclick='check(this.form)' value='Login'></td>"
+    "</tr>"
+    "</table>"
+    "</form>"
+    "<script>"
+    "function check(form)"
+    "{"
+    "if(form.userid.value=='admin' && form.pwd.value=='admin')"
+    "{"
+    "window.open('/serverIndex')"
+    "}"
+    "else"
+    "{"
+    " alert('Error Password or Username')/*displays error message*/"
+    "}"
+    "}"
+    "</script>";
+/*
+ * Server Index Page
+ */
+const char *serverIndex =
+    "<script src='https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js'></script>"
+    "<form method='POST' action='#' enctype='multipart/form-data' id='upload_form'>"
+    "<input type='file' name='update'>"
+    "<input type='submit' value='Update'>"
+    "</form>"
+    "<div id='prg'>progress: 0%</div>"
+    "<script>"
+    "$('form').submit(function(e){"
+    "e.preventDefault();"
+    "var form = $('#upload_form')[0];"
+    "var data = new FormData(form);"
+    " $.ajax({"
+    "url: '/update',"
+    "type: 'POST',"
+    "data: data,"
+    "contentType: false,"
+    "processData:false,"
+    "xhr: function() {"
+    "var xhr = new window.XMLHttpRequest();"
+    "xhr.upload.addEventListener('progress', function(evt) {"
+    "if (evt.lengthComputable) {"
+    "var per = evt.loaded / evt.total;"
+    "$('#prg').html('progress: ' + Math.round(per*100) + '%');"
+    "}"
+    "}, false);"
+    "return xhr;"
+    "},"
+    "success:function(d, s) {"
+    "console.log('success!')"
+    "},"
+    "error: function (a, b, c) {"
+    "}"
+    "});"
+    "});"
+    "</script>";
+/*
+ * setup function
+ */
+void setup(void)
+{
+  pinMode(led, OUTPUT);
+  Serial.begin(115200);
+  // Connect to WiFi network
+  WiFi.begin(ssid, password);
+  Serial.println("");
+  // Wait for connection
+  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());
+
+  
+  /*use mdns for host name resolution*/
+  if (!MDNS.begin(host))
+  { // http://esp32.local
+    Serial.println("Error setting up MDNS responder!");
+    while (1)
+    {
+      delay(1000);
+    }
+  }
+  Serial.println("mDNS responder started");
+  /*return index page which is stored in serverIndex */
+  server.on("/", HTTP_GET, []()
+            {
+    server.sendHeader("Connection", "close");
+    server.send(200, "text/html", loginIndex); });
+  server.on("/serverIndex", HTTP_GET, []()
+            {
+    server.sendHeader("Connection", "close");
+    server.send(200, "text/html", serverIndex); });
+  /*handling uploading firmware file */
+  server.on("/update", HTTP_POST, []()
+            {
+    server.sendHeader("Connection", "close");
+    server.send(200, "text/plain", (Update.hasError()) ? "FAIL" : "OK");
+    ESP.restart(); }, []()
+            {
+    HTTPUpload& upload = server.upload();
+    if (upload.status == UPLOAD_FILE_START) {
+      Serial.printf("Update: %s\n", upload.filename.c_str());
+      if (!Update.begin(UPDATE_SIZE_UNKNOWN)) { //start with max available size
+        Update.printError(Serial);
+      }
+    } else if (upload.status == UPLOAD_FILE_WRITE) {
+      /* flashing firmware to ESP*/
+      if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) {
+        Update.printError(Serial);
+      }
+    } else if (upload.status == UPLOAD_FILE_END) {
+      if (Update.end(true)) { //true to set the size to the current progress
+        Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+      } else {
+        Update.printError(Serial);
+      }
+    } });
+  server.begin();
+}
+void loop(void)
+{
+  server.handleClient();
+  delay(1);
+  digitalWrite(led, HIGH);
+  delay(600);
+  digitalWrite(led, LOW);
+  delay(600);
+}
\ No newline at end of file
-- 
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