I am trying to figure out a way to connect two fpga boards (like in the image) for a Morse code decoder/encoder. Our first plan was to make the decoding and the encoding in the same board with a mode select option, but when we sent our project proposal to our instructor, he said it was too simple for a final project and as a suggestion, he said that we can try to connect two boards and that it is a simple task, that we can find some example on Internet. However, all we could find was about boards with ethernet connection. We have our seven segment display code and a sample sequential circuit design with clock to take input and display it, but we could not figure out how to connect two boards. Any suggestion/advice would be greatly appreciated.