Instruments from old electronics. What does a barcode scanner sound like?

The Electronicos Fantasticos channel, which designs and creates instruments from old electronics from scratch, has several interesting projects to its credit. Of them, the most remarkable thing is something like a banjo with a CRT screen and a completely unlike anything else in the form of a barcode scanner.

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1 Someone converted a barcode scanner into a musical instrument

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Someone converted a barcode scanner into a musical instrument

Handheld barcode readers have a coil inside which keeps the position of the laser diode constantly changing. This is what makes us hear this characteristic, high-tonally “beep” while scanning, but it is enough to change the format and size of the read barcodes to turn the typical “beep” into something much more interesting.

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Especially when it comes to a number of different types of codes on one wall that can be freely read.

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In practice, the further the reader is from the line, the higher the pitch of the sound will be. All because of the ambient light that causes noise. The more there are, the higher the sound that you can hear above will be digitized next.