vu-meter topic

ncurses/curses pulseaudio mixer in c++ similar to pavucontrol

patroclos

Stereo VU meter using OLED screens and AVR microcontroller

adamples

ALSA plugin for displaying VU meters on various Raspberry Pi add-ons - derived from ameter

pimoroni

Audio reactive lights using Teensy 3.2

2xAA

low noise low cost stm32 usb-audio dac with optional level meter

sdima1357

Userinterface for Volumio (RaspberryPi) with ssd1322 and ssd1306 oled display, spectrum bargraph, progress bar, LED functions, Standby-functions, 4 Buttons and Rotary Encoder.

Maschine2501