Buongiorno e buone feste a tutti,
tanto per non annoiarmi in questi giorni mi sono messo un po a trastullarmi con arduino, mi piacciono molto i dati sul meteo e dopo aver scoperto weather underground non ho saputo resistere.
Ho preso un NodeMcu, ci ho attaccato un sensore dht22, e da seriale riesco a leggere i dati, con questo codice:
#include "DHT.h"
#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE, 6);
void setup() {
Serial.begin(9600);
Serial.println("DHTxx test!");
dht.begin();
}
void loop() {
delay(2000);
float h = dht.readHumidity();
// Read temperature as Celsius
float t = dht.readTemperature();
// Read temperature as Fahrenheit
float f = dht.readTemperature(true);
if (isnan(h) || isnan(t) || isnan(f)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
float hi = dht.computeHeatIndex(f, h);
Serial.print("Humidity: ");
Serial.print(h);
Serial.print(" %\t");
Serial.print("Temperature: ");
Serial.print(t);
Serial.print(" *C ");
Serial.print(f);
Serial.print(" *F\t");
Serial.print("Heat index: ");
Serial.print(hi);
Serial.println(" *F");
}
Poi ho fatto questa integrazione, ma delle variabili mi vanno out of scope 
/**
#include "DHT.h"
#include <SoftwareSerial.h>
#define SSID "NETGEAR24" //Qua ho messo i dati della mia wifi
#define PASS "*********"
#define DHTPIN 2
#define DHTTYPE DHT22
char server [] = "weatherstation.wunderground.com";
char WEBPAGE [] = "GET /weatherstation/updateweatherstation.php?";
char ID [] = "IARCOLA4"; //wunderground weather station ID
String PASSWORD = "******"; // wunderground weather station password
SoftwareSerial esp8266Module(10, 11); // RX, TX
DHT dht(DHTPIN, DHTTYPE);
void setup() {
Serial.begin(9600);
Serial.setTimeout(2000);
while(!Serial) { }
Serial.println("Device Started");
Serial.println("-------------------------------------");
Serial.println("Running DHT!");
Serial.println("-------------------------------------");
}
int timeSinceLastRead = 0;
void loop() {
if(timeSinceLastRead > 2000) {
float h = dht.readHumidity();
float tempf = dht.readTemperature();
float f = dht.readTemperature(true);
if (isnan(h) || isnan(tempf) || isnan(f)) {
Serial.println("Failed to read from DHT sensor!");
timeSinceLastRead = 0;
return;
}
float hif = dht.computeHeatIndex(f, h);
float hic = dht.computeHeatIndex(tempf, h, false);
Serial.print("Humidity: ");
Serial.print(h);
Serial.print(" %\tempf");
Serial.print("Temperature: ");
Serial.print(tempf);
Serial.print(" *C ");
Serial.print(f);
Serial.print(" *F\tempf");
Serial.print("Heat index: ");
Serial.print(hic);
Serial.print(" *C ");
Serial.print(hif);
Serial.println(" *F");
timeSinceLastRead = 0;
}
delay(100);
timeSinceLastRead += 100;
}
//-------------------------------------------------------------------
// Invio dati a weather underground
//-------------------------------------------------------------------
void wunderground(void)
{
String cmd1 = "AT+CIPSTART=\"TCP\",\"";
cmd1 += "rtupdate.wunderground.com"; // wunderground
cmd1 += "\",80";
esp8266Module.println(cmd1);
if(esp8266Module.find("Error")){
Serial.println("AT+CIPSTART error");
return;
}
String cmd = "GET /weatherstation/updateweatherstation.php?ID=";
cmd += ID;
cmd += "&PASSWORD=";
cmd += PASSWORD;
cmd += "&dateutc=now&winddir="; //Non ho compreso bene il suo significato
cmd += "&tempf=";
// cmd += tempf; Commentata perchè mi dice out of scope
cmd += "&humidity=";
// cmd += h; Commentata perchè mi dice out of scope
cmd += "&action=updateraw";
cmd += "/ HTTP/1.1\r\nHost: host:port\r\nConnection: close\r\n\r\n";
delay(2500);
}