Simple, easy to build 2 x 14 bars stereo VU meter for representing audio level.
2 x 16-band audio spectrum analyzer with Arduino Nano and 2 x 16 chars LCD display. This project is based on Shajeeb's project.
by Shajeeb and ThomAce
Sketch of transistor tester project from Karl-Heinz Kübbeler, so it's much simpler to study, modify, verify and upload to an Arduino.
Project tutorial by plouc68000
Network Sound Level meter is capable to send UDP packet over laptop existing WiFi. These packets received by Arduino through ESP8266.
Project tutorial by Fanatic Series
A desktop interactive 3D-printed Arduino social robotics kit for fun and STEM education.
Project showcase by Slant Concepts
Your project is very good! I just used your code and built a similar stuff but with a two lines of LCD display. I have some doubts about the accuracy and representation of the frequencies, but your code is far better than the others I tried.
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