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WindWorks Design was pleased to design and build full custom midi-to-light controller for a stage-sized keyboard for the famous dancing piano scene for "BIG - the musical". This is the broadway musical adaptation of the famous movie "BIG" starring Tom Hanks. In this particular instance, the performance was by the Odyssey School in Greece, NY. WindWorks donated over $2000 of hardware and custom programming to provide the midi-to-light interface in the keyboard. There are 22 light-up keys, driven by the right hand midi keyboard in the pit orchestra. The primary electronics are controlled by a PIC microcontroller monitoring the midi data stream, and two toggle switches for enable/disable and keyboard/chase modes. When disabled, no action was taken. When enabled, the mircocontroller would read the midi data stream and map particular notes to specific pins on 22 logic outputs across 3 ports on the PIC. These ports were wired into a custom parallel interface which then was distributed over db25 cables to 5 power enclosures, each having a bank of 4 or 6 solid state relays. A logical high signal from the PIC microcontroller would drive the appropriate solid state relay, lighting the appropriate dance-on keyboard key using 1-2 strings of 100 mini lights. The entire setup was remote enabled through a relay system in the back of the theatre house with the lighting console.