Shields are an exciting addition to the Papilio family of FPGA boards that are similar to Arduino Shields. They provide all the hardware needed for a targeted FPGA application such as recreating classic computing platforms or even learning VHDL. All you do is snap a shield onto a Papilio DUO and you have all the hardware you need for the area of FPGA technology you want to explore.
Please note that the Papilio Shields work with the Papilio DUO. If you have a Papilio One or Papilio Pro then please look at our MegaWings.