Motion-activated illumination system for apparel and objects

A method of providing motion-activated illumination in a wearable garment, comprising:

• providing a motion-activated module coupled to the wearable garment, and a plurality of lights distributed across the wearable garment, wherein the motion-activated module includes a processor, an accelerometer, a gyroscope, and a power source;
• measuring, by the accelerometer, linear acceleration data along three axes;
• measuring, by the gyroscope, angular velocity data along three axes;
• determining, by the processor, a gravity vector based on the linear acceleration data;
• projecting, by the processor, the angular velocity data onto the gravity vector to calculate a spin rate representing rotational velocity of the wearable garment about a gravity-referenced axis;
• and
• controlling, by the processor, illumination of the plurality of lights based on the calculated spin rate.

A motion-activated illumination system for an object or a wearable item, comprising:

• a motion-activated module comprising a processor, an inertial measurement unit in communication with the processor, and a power source;
• a plurality of lights electrically connected to the motion-activated module;
• wherein the processor is configured to:
• modulate illumination of the plurality of lights based upon a calculation of a spin rate;
• wherein the motion-activated module is configured to be coupled to the object or the wearable item such that the spin rate corresponds to a rotational velocity of the object or the wearable item about a vertical axis.