This low-resolution memory gadget packs in just a few bytes of data. however it’s sufficient to spell out [Michael Kohn’s] name. He’s been experimenting with utilizing paper discs for data storage.
His method becomes promptly remove when you view the demo video below. The disc spins several times with the sensor arm reading one track. This provides the system the possibility to determine the black band in order to get the data timing figured out. when the outer track has been checked out the servo controlling the checked out head swings it to the next up until all of the data is captured.
An Arduino is tracking the QTR-1RC reflectance sensor which makes up the reading head. It utilizes the black band width in order to establish the size of an private byte. Interestingly enough, the white parts of the disc do not contain data. digital 0 is a black area 1/4 the width of the big black strip, as well as digital 1 is half as wide.
[Michael’s] set up the generator which makes the discs to ensure that he can quickly boost the resolution. The limiting factor is what the reading hardware is able to detect.
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