– una birra ( http://www.rotterdampubcafe.com/ )
– U421 di USBMICRO ( http://www.dontronics-shop.com/usbmicros-u421-usb-interface-worldwide-shipping-outside-the-us.html )
-Interruttore ‘battimano’ ( http://www.crtelettronica.it/dettagli.php?product_id=1503 )
…altrimenti me li compro io, e fanculo.