codigo arduino ide para nodemcu con dht11
/* ----------------------------------------------------------------
www.prometec.net
Leyendo la temperatura y humedad con un sensor DHT11
y subir los valores a un sercidor mediante WiFi con el esp8266.
--------------------------------------------------------------------
*/
#include
#include
DHT11 dht11(D4);
const char* ssid = "xxxxxxxxx";
const char* password = "xxxxxxxxxxxx";
const char* host = "xxxxxxxxx.ddns.net";
void setup()
{
Serial.begin(9600);
// We start by connecting to a WiFi network
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void loop()
{
int err;
float temperatura, humedad;
if ((err = dht11.read(humedad, temperatura)) == 0)
{
Serial.print("Temperatura: ");
Serial.print(temperatura);
Serial.print(" Humedad: ");
Serial.print(humedad);
Serial.println();
}
else
{
Serial.println();
Serial.print("Error Num :");
Serial.print(err);
Serial.println();
}
Serial.print("connecting to ");
Serial.println(host);
// Use WiFiClient class to create TCP connections
WiFiClient client;
const int httpPort = 80;
if (!client.connect(host, httpPort)) {
Serial.println("connection failed");
return;
}
// We now create a URL for the request
String url = "/enviardatos.php";
String key = "?pass=";
String dato1 = "&Temperatura=";
String dato2 = "&Humedad=";
Serial.print("Requesting URL: ");
Serial.println(url);
// This will send the request to the server
client.print(String("GET ") + url + key + dato1 + temperatura + dato2 + humedad + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Connection: close\r\n\r\n");
unsigned long timeout = millis();
while (client.available() == 0) {
if (millis() - timeout > 5000) {
Serial.println(">>> Client Timeout !");
client.stop();
return;
}
}
// Read all the lines of the reply from server and print them to Serial
while (client.available()) {
String line = client.readStringUntil('\r');
Serial.print(line);
}
Serial.println();
Serial.println("closing connection");
delay(60000);
}
Comentarios