Shadowbox

Light becomes your controller with this optically driven drone machine, inviting you to sculpt sound simply by casting shadows and opening space for brightness. Instead of grabbing a knob or menu diving, you guide evolving tones by introducing or blocking light across its sensors, turning any room into a performance surface.

Shadowbox by CCTV is an open source, digital drone synth designed for experimental soundscapes and slow‑moving, textural explorations. Parameters respond directly to changes in illumination, giving you a uniquely gestural way to push drones from calm and meditative to noisy and unstable. Offered as a DIY kit that requires soldering, it’s built for hands-on creators who want to assemble, hack, and extend their own light-controlled instrument from the ground up.