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ESP8266_WIFI_EMETTEUR/ESP8266_WIFI_EMETTEUR.ino

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+/*
+ * ESP8266 wifi module Interfacing with Arduino Uno
+ * http://www.electronicwings.com
+ */ 
+// #include "ESP8266_AT.h"
+
+ /* Select Demo */
+//#define RECEIVE_DEMO      /* Define RECEIVE demo */
+#define SEND_DEMO     /* Define SEND demo */
+
+/* Define Required fields shown below */
+#define DOMAIN          "api.thingspeak.com"
+#define PORT            "80"
+#define API_WRITE_KEY   "Write your Write Key here"
+#define CHANNEL_ID      "Write your Channel ID here"
+
+#define SSID            "Livebox-37cc"
+#define PASSWORD        "8A6060920A8A86896F770F2C47"
+
+char _buffer[150];
+uint8_t Connect_Status;
+#ifdef SEND_DEMO
+uint8_t Sample = 0;
+#endif
+
+void setup() {
+    Serial.begin(9600);
+ 
+    while(!ESP8266_Begin());
+    ESP8266_WIFIMode(BOTH_STATION_AND_ACCESPOINT);  /* 3 = Both (AP and STA) */
+    ESP8266_ConnectionMode(SINGLE);           /* 0 = Single; 1 = Multi */
+    ESP8266_ApplicationMode(NORMAL);          /* 0 = Normal Mode; 1 = Transperant Mode */
+    if(ESP8266_connected() == ESP8266_NOT_CONNECTED_TO_AP)/*Check WIFI connection*/
+    ESP8266_JoinAccessPoint(SSID, PASSWORD);    /*Connect to WIFI*/
+    ESP8266_Start(0, DOMAIN, PORT); 
+}
+
+void loop() {
+    Connect_Status = ESP8266_connected();
+    if(Connect_Status == ESP8266_NOT_CONNECTED_TO_AP) /*Again check connection to WIFI*/
+    ESP8266_JoinAccessPoint(SSID, PASSWORD);    /*Connect to WIFI*/
+    if(Connect_Status == ESP8266_TRANSMISSION_DISCONNECTED)
+    ESP8266_Start(0, DOMAIN, PORT);     /*Connect to TCP port*/
+
+    #ifdef SEND_DEMO
+    memset(_buffer, 0, 150);
+    sprintf(_buffer, "GET /update?api_key=%s&field1=%d", API_WRITE_KEY, Sample++);  /*connect to thingspeak server to post data using your API_WRITE_KEY*/
+    ESP8266_Send(_buffer);
+    delay(15000);           /* Thingspeak server delay */
+    #endif
+    
+    #ifdef RECEIVE_DEMO
+    memset(_buffer, 0, 150);
+    sprintf(_buffer, "GET /channels/%s/feeds/last.txt", CHANNEL_ID); /*Connect to thingspeak server to get data using your channel ID*/
+    ESP8266_Send(_buffer);
+    Read_Data(_buffer);
+    delay(600);
+    #endif
+  }