# define LEFT_OUT_PIN 6 // Left channel data out pin to LEDs # define RIGHT_OUT_PIN 5 // Right channel data out pin to LEDs # define LEFT_IN_PIN A5 // Left aux in signal # define RIGHT_IN_PIN A4 // ...

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Looking for a digital recreation of the classic analog volume unit (VU) meter? If you’ve got an Arduino, a few passive components, and a SSD1306 OLED, then [mircemk] might have the answer for you. As ...

VFD displays are beloved for their eerie glow that sits somewhere just off what you’d call blue. [mircemk] used one of these displays to create an old-school VU meter that looks straight out of a ...