Merge pull request #20 from sekyHC/master

Waiting for CMGS when sending the message

Author: vittorioexp

Sim800L.cpp

@@ -481,11 +481,13 @@ bool Sim800L::sendSms(char* number,char* text)
     this->SoftwareSerial::print((char)26);
     _buffer=_readSerial(60000);
     //expect CMGS:xxx   , where xxx is a number,for the sending sms.
-    if ( (_buffer.indexOf("ER")) == -1)
-    {
+    if ((_buffer.indexOf("ER")) != -1) {
+        return true;
+    } else if ((_buffer.indexOf("CMGS")) != -1) {
         return false;
-    }
-    else return true;
+  	} else {
+    	return true;
+  	}
     // Error found, return 1
     // Error NOT found, return 0
 }