A new video essay by [Cleggy] offers a captivating exploration of light’s aesthetic, culminating in a detailed guide for replicating a stunning physical build at home. the project showcases a unique approach to LED matrix creation, moving beyond simple functional components to a fully realized artistic vision.
Unlike manny LED matrix projects that leave the final application to the builder, such as coasters or earrings, [Cleggy]’s work provides both the inspiration and the execution. The creator’s journey began with observing street scenes and then meticulously constructing an LED matrix from the ground up.
The impressive matrix is comprised of 1,024 hand-soldered diodes. These are controlled by a Raspberry Pi Pico, utilizing a sophisticated system of square waves rather than a straightforward WS2812 setup. The design is engineered from the silicon level, incorporating D-latches and demultiplexers to produce mesmerizing grayscale visuals.
Pulse-width modulation (PWM) is central to the hack’s success. [Cleggy] achieves individual pixel dimming by adjusting the duty cycle of each white LED’s light signal. Grayscale video data, compressed into CSV files, is processed line by line by the Pico, translating intensity values into dynamic, shimmering time slices.
This innovative approach transforms the viewer’s perception of light and imagery, all through a 1,000-LED monochrome display. The personal nature of light shows means each creation is distinct, with some projects catering to simpler, more playful applications.
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