Mirko Pavleski

Simple to build ESP32 VU meter on Round Dispalys with Peak Meters.

I will present to you the simplest possible way to make a retro-style analog oscilloscope with a cathode ray tube (CRT).

A simple Stereo VU (Volume Unit) meter that represents the intensity of an audio signal using a series of bars. VFD Display type is GP1287.

Simple to build, inexpensive instrument with a beautiful graphical interface, primarily intended for educational purposes.

The device presented in this project is very simple to build, but it is a really useful instrument in the laboratory, especially due to the fact that many different types of LEDs are used nowadays.

Simple single tube preamplifier with tone control that includes options for adjusting the bass, midrange, and treble frequencies. It also has gain, volume, and input sensitivity controls.