The SLS Traffic Light Controller (TLC) is an extremely useful
tool for teaching HDL coding for State Machines.
Moreover, one can also write different kinds
of LED blinking programs and sharpen the HDL
skills.
The SLS TLC Snap-On board is designed to
snap on Altera Standard santacruz header.
If you have a DE1 or a DE2 board you can use
E-Gasket, a santacruz to DE1/2 header convertor.