Make example for this keyboard (after setting up your build environment):
make ymdk/sp64:default
Flashing example for this keyboard (after setting up the bootloadHID flashing environment)
make ymdk/sp64:default:flash
Reset Key: Hold down the key located at top left on the left hand board, commonly programmed as ESC while plugging in the keyboard. (NOTE: If this doesn't work, try the lower left key on the lower left board, commonly programmed as Control. There might be a different version of the board that uses that key as the reset.)
See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.