.Thanks for your answers. I have ordered a Adruino Uno . I think it does not have a wifi inside so what must i order to be able to connect the adruino to internet remotely (without a cable i want ) is it possible
https://www.arduino.cc/en/Main/ArduinoWiFiShield
Wifi Shield. Their webPage says that it is a retired product, i do not know why. but this is what you should get for you to comunícate wirelessly, or the XBEE that Erel is experimenting on.