// Les librairies
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <FS.h>
#include "DHT.h"
// ses identifiants du reseau wifi
const char *ssid = "XXXX";
const char *password = "YYYY";
// la sonde dht22
#define DHTTYPE DHT22
uint8_t DHTPin = 4;
float Temperature, Humidite;
DHT dht(DHTPin, DHTTYPE);
// le serveur web
ESP8266WebServer server(80);
// fonction qui lit la sonde et envoi les data au seveur web
void handleData(){
Temperature = dht.readTemperature();
Serial.println(Temperature);
Humidite = dht.readHumidity();
Serial.println(Humidite);
char datas[64];
snprintf(datas, 64, "%.2f,%.2f", Temperature, Humidite);
server.send(200, "text/html",datas);
}
// la fonction qui renvoie vers la page index.html quand on est a la racine du serveur
void handleRoot(){
server.sendHeader("Location", "/index.html",true);
server.send(302, "text/plain","");
}
// la fonction qui traite la requète HTTP
void handleWebRequests(){
if(loadFromSpiffs(server.uri())) return;
String message = "File Not Detected\n\n";
message += "URI: ";
message += server.uri();
message += "\nMethod: ";
message += (server.method() == HTTP_GET)?"GET":"POST";
message += "\nArguments: ";
message += server.args();
message += "\n";
for (uint8_t i=0; i<server.args(); i++){
message += " NAME:"+server.argName(i) + "\n VALUE:" + server.arg(i) + "\n";
}
server.send(404, "text/plain", message);
Serial.println(message);
}
void setup() {
delay(1000);
Serial.begin(115200);
Serial.println();
pinMode(DHTPin, INPUT);
dht.begin();
//Initialise la mèmoire SPIFFS
SPIFFS.begin();
Serial.println("File System Initialized");
// on SE CONNECTE AU RESEAU
WiFi.begin(ssid, password); //Connect to your WiFi router
Serial.println("");
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
// on nitialise le serveur web
server.on("/",handleRoot); // la fonction associé a la racine du serveur
server.on("/getData",handleData); // la fonction associé a l'onglet /getData
server.onNotFound(handleWebRequests); // la fonction qui traite la requete HTTP si la page n'est pas trouvé
server.begin(); // on demarre le serveur web
}
void loop() {
server.handleClient(); // on attend un client en boucle
}
// la fonction qui lit et traite les fichiers presents dans la mémoire SPIFFS
bool loadFromSpiffs(String path){
String dataType = "text/plain";
if(path.endsWith("/")) path += "index.htm";
if(path.endsWith(".src")) path = path.substring(0, path.lastIndexOf("."));
else if(path.endsWith(".html")) dataType = "text/html";
else if(path.endsWith(".htm")) dataType = "text/html";
else if(path.endsWith(".css")) dataType = "text/css";
else if(path.endsWith(".js")) dataType = "application/javascript";
else if(path.endsWith(".png")) dataType = "image/png";
else if(path.endsWith(".gif")) dataType = "image/gif";
else if(path.endsWith(".jpg")) dataType = "image/jpeg";
else if(path.endsWith(".ico")) dataType = "image/x-icon";
else if(path.endsWith(".xml")) dataType = "text/xml";
else if(path.endsWith(".pdf")) dataType = "application/pdf";
else if(path.endsWith(".zip")) dataType = "application/zip";
File dataFile = SPIFFS.open(path.c_str(), "r");
if (server.hasArg("download")) dataType = "application/octet-stream";
if (server.streamFile(dataFile, dataType) != dataFile.size()) {
}
dataFile.close();
return true;
}