“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.
This little and easy-to-do project is based on an idea to represent audio spectrum data: 32-Band Audio Spectrum Visualizer Analyzer by Shajeeb. However, I have a 2 x 40chars big LCD, and I don’t wanted to create LED based bars, plus not willing to use additional hardwares. Additionally, my friends asked me to create a bit smaller version. So I changed the codes and created a 2 x 16 bars, stereo audio spectrum analyzer.
The code is changed to read data from analogue pin 0 and pin 1. Changed the hum/noise ellimination level and the voltage reference. You can change it for your needs later on as well.”