Each module includes firmware that outputs specific MIDI info when the switch is pressed. The kit includes a coin cell battery and all parts except a MIDI jack. Build into a 1590A "Twinkie" box or combine modules in a larger enclosure. Available programs are:
05 - Cycle through Whammy 5 settings with effect OFF and reverse with 2 second hold
I4 - Cycle through Whammy 4 settings with effect ON and reverse with 2 second hold
0D - Cycle through Whammy DT settings with effect OFF and reverse with 2 second hold
OP 450 - Opiate 450 Whammy 4 Bass Whammy Emulator
Here is a link to the datasheets.