Absolutely love how this jacket by abetusk looks in a hazy room. From Instructables:
After seeing Wei Chieh Shi’s laser jacket design, I wanted to create my own. These instructions show how to modify a jacket to add laser diodes and control them electronically to produce different laser light patterns. The laser diodes give the jacket an appearance of being “spiky”, like having metal spikes but with red laser light. The effect is especially striking in environments with fog or smoke as the laser light path shows a trail from where it originates.
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Author here! Thanks for the shoutout!
The spiked jacket actually uses two PCA9685 boards to drive the laser diodes. An initial prototype used boards ordered from you (https://www.adafruit.com/product/815). The project was a lot simpler with those PWM boards. Thanks for providing them to the community!