This is a DIY kit that uses the visual effect of "persistence of vision" where very fast spinning images give the illusion of a still image, in this case, a sphere.

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It consists mostly of SMD elements and the most peculiar part of the hardware is the fact that the energy is transmitted wirelessly through the coils regulated by the wireless power supply ICs.

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The images are programmable: custom images, .gif animated files, text, and even configurable time and date. It can't be quite appreciated on cameras, but the "holographic-look" is quite realistic and beautiful when looked directly.

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Soldering so many SMD components was not easy, but the real challenge of this project was to decipher the mix of Chinese and broken English from the documentation in order to set it up. The most critical error on the documentation was that the supply voltage listed was 5v, but after much testing and googling I found out the components actually work on 12v. Programming the MCU was also not easy, as it was the first STM chip I worked on, and the software that the kit producers deliver to use were quite obscure and outdated.

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