Finally 7 Vus and 11 patterns working on Arduino Nano and Arduino Pro Mini 3.3 volts. I say finally working because on the Arduino Nano when using Adafruit's Electret Microphone Amplifier - MAX4466 ...

The build uses an Arduino Nano as the brains of the operation, which uses its analog inputs to process incoming audio into decibel levels for display on a VU meter.

XXL Vu meter van Elektor (2014) XXL VU meter, en slechte partij LM3915, en geen nieuwe ic' te vinden welk werkt. In the past I have rebuilt the XXL VU meter from Elektor, of course on an original ...