This is just a great project to build if you have the patience. I added a DHD button to activate the gate. Until the DHD button is pressed, the 9 ring LEDs rotate through about a dozen patterns including a lights only dial for both SG1 and Atlantis gates. When the button is pressed, the ramp LEDs activate and the preprogrammed dialing sequence starts. Someday, I hope create a working DHD that dials the gate using the symbols pressed. I also plan on adding sound effects.... Someday.