The keyfob receiver card receives and decodes most 315 MHz and 434 MHz remote controls. One model has an a built-in antenna for 315 MHz and the other model has an SMA connector for either 315 or 434 MHz. The card requires one slot on the FPGA card and must be paired with the "rfob" FPGA peripheral. Input from the card is event driven so your code does not need to poll for switch transitions. Click here for more information.