In stock 191 items in stock. Sale items are not eligible for quantity discounts. The Arduino Funnel I/O (Fio) is a board designed by Shigeru Kobayashi, based on the original design from LilyPad. Funnel is a toolkit to sketch your idea physically, and consists of software libraries and hardware. By using Funnel, the user can interface to sensors and/or actuators with various programming languages s