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informatica:arduino:esp32:ejemplos

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informatica:arduino:esp32:ejemplos [2025/05/02 20:11] – joseinformatica:arduino:esp32:ejemplos [2025/05/02 20:23] (current) – [Versión 1] jose
Line 130: Line 130:
  
 ====== Encender LED desde página WEB ====== ====== Encender LED desde página WEB ======
-===== Versión 1 ===== 
-El mensaje final cuando actualiza está con mala codificación 
 <code> <code>
 #include <WiFi.h> #include <WiFi.h>
Line 137: Line 135:
 #include <Update.h> #include <Update.h>
  
-// WiFi +// =================== HTMLS ===================
-const char* ssid = "pitufina"; +
-const char* password = "reyvisigodo";+
  
-// LED pin 
-#define RELAY_PIN 13 
- 
-// Estados 
-bool ledState = false; 
-bool autoBlink = true; 
- 
-// Temporizador para parpadeo 
-unsigned long previousMillis = 0; 
-const unsigned long interval = 500; 
- 
-// IP estática (opcional) 
-IPAddress ip(192, 168, 1, 112); 
-IPAddress gateway(192, 168, 1, 1); 
-IPAddress subnet(255, 255, 255, 0); 
-IPAddress dns(8, 8, 8, 8); 
- 
-WebServer server(80); 
- 
-// Página principal 
 const char* mainPage = R"rawliteral( const char* mainPage = R"rawliteral(
 <!DOCTYPE html> <!DOCTYPE html>
Line 203: Line 179:
       <form method="POST" action="/update" enctype="multipart/form-data">       <form method="POST" action="/update" enctype="multipart/form-data">
         <input type="file" name="update">         <input type="file" name="update">
-        <input type="submit" value="Actualizar">+        <input type="submit" value="Actualizar firmware">
       </form>       </form>
     </div>     </div>
Line 210: Line 186:
 )rawliteral"; )rawliteral";
  
-// Página de éxito OTA 
 const char* successPage = R"rawliteral( const char* successPage = R"rawliteral(
 <!DOCTYPE html> <!DOCTYPE html>
 <html> <html>
-  <head><meta charset="utf-8"><title>Actualizado</title></head> +  <head> 
-  <body> +    <meta charset="utf-8"> 
-    <h2>✅ Actualización completada con éxito</h2> +    <title>Actualización exitosa</title> 
-    <p>Reiniciando ESP32...</p>+    <meta http-equiv="refresh" content="5;url=/" /> 
 +  </head> 
 +  <body style="font-family: sans-serif; background-color: #f4f4f4; padding: 30px;"> 
 +    <div style="background: white; padding: 20px; border-radius: 8px; box-shadow: 0 0 10px #ccc;"> 
 +      <h1>✅ Actualización exitosa</h1> 
 +      <p>El ESP32 se reiniciará automáticamente en unos segundos...</p> 
 +    </div>
   </body>   </body>
 </html> </html>
 )rawliteral"; )rawliteral";
  
-// Reemplazo de variables 
-String processor(const String& var) { 
-  if (var == "LED_STATE") return ledState ? "Encendido" : "Apagado"; 
-  if (var == "LED_STATUS") return ledState ? "on" : "off"; 
-  if (var == "BTN_TEXT") return ledState ? "Apagar" : "Encender"; 
-  if (var == "BTN_ON_CLASS") return ledState ? "btn-off" : "btn-on"; 
-  if (var == "AUTO_TEXT") return autoBlink ? "Parpadeo: ON" : "Parpadeo: OFF"; 
-  return String(); 
-} 
  
-void setup() { +// Configuración WiFi 
-  pinMode(RELAY_PIN, OUTPUT); +const char* ssid = "XXXXXX"; 
-  digitalWrite(RELAY_PIN, LOW); +const char* password = "XXXXXXXX";
-  Serial.begin(115200); +
- +
-  WiFi.config(ip, gateway, subnet, dns); +
-  WiFi.begin(ssid, password); +
-  while (WiFi.status() != WL_CONNECTED) { +
-    delay(500); +
-    Serial.print("."); +
-  } +
-  Serial.println("\nWiFi conectado: " + WiFi.localIP().toString()); +
- +
-  // Página principal +
-  server.on("/", []() { +
-    String html = mainPage; +
-    html.replace("%LED_STATE%", processor("LED_STATE")); +
-    html.replace("%LED_STATUS%", processor("LED_STATUS")); +
-    html.replace("%BTN_TEXT%", processor("BTN_TEXT")); +
-    html.replace("%BTN_ON_CLASS%", processor("BTN_ON_CLASS")); +
-    html.replace("%AUTO_TEXT%", processor("AUTO_TEXT")); +
-    server.send(200, "text/html", html); +
-  }); +
- +
-  // Toggle LED +
-  server.on("/toggle", []() { +
-    ledState = !ledState; +
-    digitalWrite(RELAY_PIN, ledState ? HIGH : LOW); +
-    autoBlink = false; +
-    server.send(200, "text/plain", "OK"); +
-  }); +
- +
-  // Toggle parpadeo +
-  server.on("/auto", []() { +
-    autoBlink = !autoBlink; +
-    server.send(200, "text/plain", "OK"); +
-  }); +
- +
-  // OTA Upload +
-  server.on("/update", HTTP_POST, []() { +
-    server.sendHeader("Connection", "close"); +
-    server.send(200, "text/html", successPage); +
-    delay(1500);  // Espera antes de reiniciar +
-    ESP.restart(); +
-  }, []() { +
-    HTTPUpload& upload = server.upload(); +
-    if (upload.status == UPLOAD_FILE_START) { +
-      Serial.printf("Actualizando: %s\n", upload.filename.c_str()); +
-      if (!Update.begin(UPDATE_SIZE_UNKNOWN)) { +
-        Update.printError(Serial); +
-      } +
-    } else if (upload.status == UPLOAD_FILE_WRITE) { +
-      if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) { +
-        Update.printError(Serial); +
-      } +
-    } else if (upload.status == UPLOAD_FILE_END) { +
-      if (Update.end(true)) { +
-        Serial.println("Actualización exitosa"); +
-      } else { +
-        Update.printError(Serial); +
-      } +
-    } +
-  }); +
- +
-  server.begin(); +
-} +
- +
-void loop() { +
-  server.handleClient(); +
- +
-  if (autoBlink) { +
-    unsigned long currentMillis = millis(); +
-    if (currentMillis - previousMillis >= interval) { +
-      previousMillis = currentMillis; +
-      ledState = !ledState; +
-      digitalWrite(RELAY_PIN, ledState ? HIGH : LOW); +
-    } +
-  } +
-} +
-</code> +
- +
-===== Versión 2 ===== +
-Tarda mucho en actualizar +
- +
-<code> +
-#include <WiFi.h> +
-#include <WebServer.h> +
-#include <Update.h> +
- +
-// WiFi +
-const char* ssid = "pitufina"; +
-const char* password = "reyvisigodo"; +
- +
-// LED pin +
-#define RELAY_PIN 13 +
- +
-// Estados +
-bool ledState = false; +
-bool autoBlink = true; +
- +
-// Temporizador para parpadeo +
-unsigned long previousMillis = 0; +
-const unsigned long interval = 500;+
  
 // IP estática (opcional) // IP estática (opcional)
Line 341: Line 213:
 IPAddress subnet(255, 255, 255, 0); IPAddress subnet(255, 255, 255, 0);
 IPAddress dns(8, 8, 8, 8); IPAddress dns(8, 8, 8, 8);
 +
 +#define RELAY_PIN 13
  
 WebServer server(80); WebServer server(80);
  
-// Página principal +bool ledState = false; 
-const char* mainPage = R"rawliteral( +bool autoBlink = true;
-<!DOCTYPE html> +
-<html> +
-  <head> +
-    <title>Control ESP32</title> +
-    <meta charset="utf-8"> +
-    <meta name="viewport" content="width=device-width, initial-scale=1"> +
-    <style> +
-      body { font-family: sans-serif; background-color: #f4f4f4; padding: 30px; max-width: 600px; margin: 0 auto; } +
-      .card { background: white; padding: 20px; border-radius: 8px; box-shadow: 0 0 10px #ccc; margin-bottom: 20px; } +
-      .btn { padding: 10px 20px; border: none; border-radius: 4px; color: white; font-size: 16px; cursor: pointer; transition: background-color 0.3s; } +
-      .btn-on { background-color: #4CAF50; } +
-      .btn-on:hover { background-color: #45a049; } +
-      .btn-off { background-color: #f44336; } +
-      .btn-off:hover { background-color: #d32f2f; } +
-      .btn-auto { background-color: #2196F3; } +
-      .btn-auto:hover { background-color: #0b7dda; } +
-      .status { padding: 10px; margin: 10px 0; border-radius: 4px; text-align: center; } +
-      .on { background-color: #dff0d8; color: #3c763d; } +
-      .off { background-color: #f2dede; color: #a94442; } +
-    </style> +
-    <script> +
-      function toggleLED() { +
-        fetch("/toggle").then(() => location.reload()); +
-      } +
-      function toggleAuto() { +
-        fetch("/auto").then(() => location.reload()); +
-      } +
-    </script> +
-  </head> +
-  <body> +
-    <h1>Control ESP32</h1> +
-    <div class="card"> +
-      <h2>Control del LED</h2> +
-      <div class="status %LED_STATUS%">Estado actual: %LED_STATE%</div> +
-      <button class="btn %BTN_ON_CLASS%" onclick="toggleLED()">%BTN_TEXT%</button> +
-      <button class="btn btn-auto" onclick="toggleAuto()">%AUTO_TEXT%</button> +
-    </div> +
-    <div class="card"> +
-      <h2>Actualización OTA</h2> +
-      <form method="POST" action="/update" enctype="multipart/form-data"> +
-        <input type="file" name="update"> +
-        <input type="submit" value="Actualizar"> +
-      </form> +
-    </div> +
-  </body> +
-</html> +
-)rawliteral";+
  
-// Página de éxito OTA +unsigned long previousMillis = 0; 
-const char* successPage = R"rawliteral( +const unsigned long interval = 500;
-<!DOCTYPE html> +
-<html> +
-  <head><meta charset="utf-8"><title>Actualizado</title></head> +
-  <body> +
-    <h2>✅ Actualización completada con éxito</h2> +
-    <p>Reiniciando ESP32...</p> +
-  </body> +
-</html> +
-)rawliteral"; +
- +
-// Reemplazo de variables +
-String processor(const String& var) { +
-  if (var == "LED_STATE") return ledState ? "Encendido" : "Apagado"; +
-  if (var == "LED_STATUS") return ledState ? "on" : "off"; +
-  if (var == "BTN_TEXT") return ledState ? "Apagar" : "Encender"; +
-  if (var == "BTN_ON_CLASS") return ledState ? "btn-off" : "btn-on"; +
-  if (var == "AUTO_TEXT") return autoBlink ? "Parpadeo: ON" : "Parpadeo: OFF"; +
-  return String(); +
-}+
  
 void setup() { void setup() {
 +  Serial.begin(115200);
   pinMode(RELAY_PIN, OUTPUT);   pinMode(RELAY_PIN, OUTPUT);
   digitalWrite(RELAY_PIN, LOW);   digitalWrite(RELAY_PIN, LOW);
-  Serial.begin(115200); 
  
   WiFi.config(ip, gateway, subnet, dns);   WiFi.config(ip, gateway, subnet, dns);
   WiFi.begin(ssid, password);   WiFi.begin(ssid, password);
-  while (WiFi.status() != WL_CONNECTED) { +  while (WiFi.status() != WL_CONNECTED) delay(100); 
-    delay(500); +  Serial.print("Conectado: "); Serial.println(WiFi.localIP());
-    Serial.print("."); +
-  } +
-  Serial.println("\nWiFi conectado: " + WiFi.localIP().toString());+
  
-  // Página principal 
   server.on("/", []() {   server.on("/", []() {
     String html = mainPage;     String html = mainPage;
-    html.replace("%LED_STATE%", processor("LED_STATE")); +    html.replace("%LED_STATE%", ledState ? "ENCENDIDO" : "APAGADO"); 
-    html.replace("%LED_STATUS%", processor("LED_STATUS")); +    html.replace("%LED_STATUS%", ledState ? "on" : "off"); 
-    html.replace("%BTN_TEXT%", processor("BTN_TEXT")); +    html.replace("%BTN_TEXT%", ledState ? "Apagar" : "Encender"); 
-    html.replace("%BTN_ON_CLASS%", processor("BTN_ON_CLASS")); +    html.replace("%BTN_ON_CLASS%", ledState ? "btn-off" : "btn-on"); 
-    html.replace("%AUTO_TEXT%", processor("AUTO_TEXT")); +    html.replace("%AUTO_TEXT%", autoBlink ? "Auto: ON" : "Auto: OFF"); 
-    server.send(200, "text/html", html);+    server.send(200, "text/html; charset=utf-8", html);
   });   });
  
-  // Toggle LED 
   server.on("/toggle", []() {   server.on("/toggle", []() {
     ledState = !ledState;     ledState = !ledState;
-    digitalWrite(RELAY_PIN, ledState ? HIGH : LOW); 
     autoBlink = false;     autoBlink = false;
 +    digitalWrite(RELAY_PIN, ledState);
     server.send(200, "text/plain", "OK");     server.send(200, "text/plain", "OK");
   });   });
  
-  // Toggle parpadeo 
   server.on("/auto", []() {   server.on("/auto", []() {
     autoBlink = !autoBlink;     autoBlink = !autoBlink;
Line 454: Line 256:
   });   });
  
-  // OTA Upload 
   server.on("/update", HTTP_POST, []() {   server.on("/update", HTTP_POST, []() {
     server.sendHeader("Connection", "close");     server.sendHeader("Connection", "close");
-    server.send(200, "text/html", successPage); +    server.send(200, "text/html; charset=utf-8", successPage); 
-    delay(1500);  // Espera antes de reiniciar+    delay(2000);
     ESP.restart();     ESP.restart();
   }, []() {   }, []() {
     HTTPUpload& upload = server.upload();     HTTPUpload& upload = server.upload();
     if (upload.status == UPLOAD_FILE_START) {     if (upload.status == UPLOAD_FILE_START) {
-      Serial.printf("Actualizando: %s\n", upload.filename.c_str()); +      Serial.printf("OTA iniciada: %s\n", upload.filename.c_str()); 
-      if (!Update.begin(UPDATE_SIZE_UNKNOWN)) { +      if (!Update.begin(UPDATE_SIZE_UNKNOWN)) Update.printError(Serial);
-        Update.printError(Serial); +
-      }+
     } else if (upload.status == UPLOAD_FILE_WRITE) {     } else if (upload.status == UPLOAD_FILE_WRITE) {
-      if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) { +      if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) Update.printError(Serial);
-        Update.printError(Serial); +
-      }+
     } else if (upload.status == UPLOAD_FILE_END) {     } else if (upload.status == UPLOAD_FILE_END) {
-      if (Update.end(true)) { +      if (Update.end(true)) Serial.println("OTA finalizada correctamente"); 
-        Serial.println("Actualización exitosa"); +      else Update.printError(Serial);
-      } else { +
-        Update.printError(Serial); +
-      }+
     }     }
   });   });
Line 491: Line 285:
       previousMillis = currentMillis;       previousMillis = currentMillis;
       ledState = !ledState;       ledState = !ledState;
-      digitalWrite(RELAY_PIN, ledState ? HIGH : LOW);+      digitalWrite(RELAY_PIN, ledState);
     }     }
   }   }
informatica/arduino/esp32/ejemplos.1746216714.txt.gz · Last modified: by jose