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--- informatica:arduino:esp32 [2021/02/07 20:54] – [Arduino IDE] jose
+++ informatica:arduino:esp32 [2022/10/24 22:12] (current) – jose
@@ Line 1: / Line 1: @@
-ESP32
+====== Ejemplos: ======
+**Estación Metereológica:**\\
+https://github.com/NewbieMakerLearning/Servidor_Estacion_Meteo
+====== Bateria bien montada ======
+https://emariete.com/medidor-co2-con-bateria-bien-hecho/
+====== ESP32 ======
 {{:informatica:arduino:esp32_01.png|}}
-https://randomnerdtutorials.com/install-esp32-filesystem-uploader-arduino-ide/
+====== ARDUINO IDE ======
+Nos descargamos la última versión de Arduino IDE, tiene que ser por encima de la 1.6
-/usr/share/arduino/tools
+Descargamos un plugin para poder conectar con esp32:
-wget https://github.com/me-no-dev/arduino-esp32fs-plugin/releases/download/1.0/ESP32FS-1.0.zip
+https://github.com/espressif/arduino-esp32
-Abrimos arduino IDE y ya nos aparece tools > ESP32 sketch data upload
+https://github.com/espressif/arduino-esp32/blob/master/docs/arduino-ide/boards_manager.md
+Ponemos esta URL en file > preferences > Additional Boards Manager URLs:
+  https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json
+Tarda un ratillo en descargárselas
+Ahora vamos a tools > Board: “Arduino Uno” y seleccionamos Boards Manager. Buscamos esp32 y damos a install
+En Tools > Board: “Arduino Uno” > ESP32 Arduino
+Reiniciamos Arduino. Nos aseguramos que python apunte a python3 instalando python-is-python3
+  sudo apt install python-is-python3
+Código de ejemplo. Conecta a wifi y nos da la ip. Una vez subido tenemos que reiniciar esp32 (desconectando usb)
 <code>
-#include "WiFi.h"
+#include <WiFi.h>        // Include the Wi-Fi library
-const char* ssid = "yourNetworkName";
-const char* password =  "yourNetworkPass";
+const char* ssid     = "pitufina";         // The SSID (name) of the Wi-Fi network you want to connect to
+const char* password = "********";     // The password of the Wi-Fi network
 void setup() {
+  Serial.begin(115200);         // Start the Serial communication to send messages to the computer
-  Serial.begin(115200);
+  delay(10);
+  Serial.println('\n');
+  WiFi.begin(ssid, password);             // Connect to the network
+  Serial.print("Connecting to ");
+  Serial.print(ssid);
+  while (WiFi.status() != WL_CONNECTED) { // Wait for the Wi-Fi to connect
+    delay(500);
+    Serial.print('.');
+  }
+  Serial.println('\n');
+  Serial.println("Connection established!");
+  Serial.print("IP address:\t");
+  Serial.println(WiFi.localIP());         // Send the IP address of the ESP8266 to the computer
+}
+void loop() {
+}
+</code>
+La salida que nos da es esta:
+<code>
+.
+Connection established!
+IP address:	192.168.1.97
+</code>
+HAcer petición GET y POST
+<code>
+#include <WiFi.h>        // Include the Wi-Fi library
+#include <HTTPClient.h>
+const char* ssid     = "mi_red";         // The SSID (name) of the Wi-Fi network you want to connect to
+const char* password = "*********";     // The password of the Wi-Fi network
+//Your Domain name with URL path or IP address with path
+String serverName = "http://192.168.1.200/esp32";
+// the following variables are unsigned longs because the time, measured in
+// milliseconds, will quickly become a bigger number than can be stored in an int.
+unsigned long lastTime = 0;
+// Timer set to 10 minutes (600000)
+//unsigned long timerDelay = 600000;
+// Set timer to 5 seconds (5000)
+unsigned long timerDelay = 5000;
+void setup() {
+  Serial.begin(115200);
   WiFi.begin(ssid, password);
+  Serial.println("Connecting");
-  while (WiFi.status() != WL_CONNECTED) {
+  while(WiFi.status() != WL_CONNECTED) {
     delay(500);
-    Serial.println("Connecting to WiFi..");
+    Serial.print(".");
   }
+  Serial.println("");
+  Serial.print("Connected to WiFi network with IP Address: ");
+  Serial.println(WiFi.localIP());
-  Serial.println("Connected to the WiFi network");
+  Serial.println("Timer set to 5 seconds (timerDelay variable), it will take 5 seconds before publishing the first reading.");
+}
+void loop() {
+  //Send an HTTP POST request every 10 minutes
+  if ((millis() - lastTime) > timerDelay) {
+    //Check WiFi connection status
+    if(WiFi.status()== WL_CONNECTED){
+      HTTPClient http;
+      String serverPath = serverName + "?temperature=24.37";
+      // Your Domain name with URL path or IP address with path
+      http.begin(serverPath.c_str());
+      // Send HTTP GET request
+      int httpResponseCode = http.GET();
+      if (httpResponseCode>0) {
+        Serial.print("HTTP Response code: ");
+        Serial.println(httpResponseCode);
+        String payload = http.getString();
+        Serial.println(payload);
+      }
+      else {
+        Serial.print("Error code: ");
+        Serial.println(httpResponseCode);
+      }
+      // Free resources
+      http.end();
+    }
+    else {
+      Serial.println("WiFi Disconnected");
+    }
+    lastTime = millis();
+  }
 }
-void loop() {}
 </code>
@@ Line 103: / Line 213: @@
 En Tools > Board: "Arduino Uno" > ESP32 Arduino
+====== Energia y consumo ======
+https://lastminuteengineers.com/esp32-sleep-modes-power-consumption/
+====== Pantalla e-paper ======
+https://www.youtube.com/watch?v=1xQqc6ZCXdw