This time I bring an electronic kit for beginners, this is a very cheap and interesting device that displays audio levels into the LEDs just like any audio level bar indicator will do. It is simple ...

With his remarkable run at the USA Track & Field Championships, Cooper Lutkenhaus set an under-18 world record in the 800-meter. / Kirby Lee-Imagn Images In a few short weeks, Cooper Lutkenhaus will ...

In the past I have rebuilt the XXL VU meter from Elektor, of course on an original printed circuit board, it still works as required. Now I have a home cinema with many outputs and I am busy ...

const uint8_t OUTER_START = 0; // When the outer ring starts const uint8_t OUTER_END = 24; // When the outer ring ends + 1 (for looping) const uint8_t CENTER_START = 24; // When the center ring starts ...

Humans love visualising music, whether it’s in the form of an inscrutable equation drawing squiggles in Winamp, or a simple VU meter pulsing with the beat. This build from [mircemk] is of the latter ...

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Arduino libraries, like libraries for other programming languages, help easily extend the range of functions available to users in the standard integrated development environment (IDE). They are ...

Digital and analog worlds continue to collide as Cambridge Audio announced that it has extended the retro-cool digital VU meter update that its Evo streaming amplifiers are getting today to its ...

Abstract: Background: Accurate pH measurement is vital in diverse settings such as water quality assessment, food production, and laboratory procedures. This study introduces a pH meter design ...

An analog VU (volume unit) meter is a splendid moving-coil measuring instrument. It is a passive electromechanical device displaying a representation of the signal level in an audio equipment. Even ...

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