The Arduino then measures the voltage on those inputs and feeds the necessary commands to the PT6314 driver to update the display. The resulting VU meter has 38 bars per channel, and is highly ...

Most recently, we’ve seen VU meters circle back around to have a bit of a retro vibe in this awesome Arduino-controlled LCD VU meter built by [mircemk]. Based on the KTAudio VU Meter project, it ...