actualizacionv2

ESP8266/I2C/.gitignore

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+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

ESP8266/I2C/platformio.ini

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+;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:nodemcuv2]
+platform = espressif8266
+board = nodemcuv2
+framework = arduino
+monitor_speed = 115200
+upload_speed = 256000

ESP8266/I2C/src/main.cpp

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+#include <Arduino.h>
+#include <Wire.h>
+
+void setup()
+{
+
+  pinMode(D0, OUTPUT);
+  Serial.begin(115200);
+  Wire.begin(D2, D1); /* I2C bus  SDA=D2 and SCL=D1 */
+}
+
+void loop()
+{
+  byte error, address;
+  int nDevices;
+
+  Serial.println("Escaneando...");
+  Serial.println("**************");
+
+  nDevices = 0;
+  for (address = 1; address < 127; address++)
+  {
+
+    Wire.beginTransmission(address);
+    error = Wire.endTransmission();
+
+    if (error == 0)
+    {
+      Serial.print("Encontrado dispositivo I2C dirección 0x");
+      if (address < 16)
+        Serial.print("0");
+      Serial.println(address, HEX);
+      nDevices++;
+    }
+  }
+  Serial.println("**************");
+  delay(2000); 
+}