//geklaut bei Javier Muñoz Sáez 05/07/2017, javimusama@gmail.com
//geändert von mir

#include "ESP8266WiFi.h"
//#define mitEcho

// WiFi parameters
                    const char* ssid = "WemosAP";
                    const char* password = "keinpass";
                    const int httpPort = 80;

const char* host = "192.168.4.1";
//const char* rhost = "192.168.4.2";
String rufenderHost;
const char* sw ;
int i;


WiFiClient client;

void setup() {
  Serial.begin(9600);

  Serial.print("Connecting to ");
  Serial.println(ssid);
  //initialice and connect to wifi lan
  WiFi.begin(ssid, password);
  int retries = 0;
  while ((WiFi.status() != WL_CONNECTED) && (retries < 15)) {
    retries++;
    delay(500);
    Serial.print(".");
  }
  if(retries>14){
        Serial.println(F("WiFi conection FAILED"));
  }
  if (WiFi.status() == WL_CONNECTED) {
      rufenderHost =  WiFi.localIP().toString();

      Serial.println(F("WiFi connected"));
      Serial.println("IP address: ");
      Serial.println(rufenderHost);
      Serial.println(F("======================================================"));
  }
      Serial.print("connecting to ");
      Serial.println(host);
}



  void loop() {
	    Serial.print("connecting to ");
	    Serial.println(host);

	    if (!client.connect(host, httpPort)) {
	      Serial.println("connection failed");
	      return;
	    }

//abwechselnd sende ich jetzt ein /e oder /a an den Webserver
//  /e und /a schalten auf dem Server einen Pin um
	    if (i==0) {
	    	i = 1;
	    	sw = "e";
	    }
	    else {
	    	i = 0;
	    	sw = "a";
	    }

	    client.print(String("GET /") + sw + " HTTP/1.1\r\n"+
	   	    		"Host:"+
					rufenderHost+
					//"\r\n");
					"\r\nConnection: close\r\n\r\n ");


	    delay(300);

// Auswertung der Rückmeldung ....
#ifdef mitEcho
	    bool fertig = false;
	    while((client.available()) && (!fertig)) {

	      String line = client.readStringUntil('\r');
	      if (line.indexOf("schalten") > 0) {
	        Serial.println(line);
	        fertig = true;
  	      }

	  }
#endif
}