Uploaded January 2021 | Updated September 2026, 2 weeks ago

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ST9720 LCD displays spectrum analyzer from Arduino.

Link to code:
akuzechie.blogspot.com/2021/01/arduino-spectrum-analyzer-using-st9720.html
Link to Mirko Pavleski tutorial:
create.arduino.cc/projecthub/mircemk/diy-fft-audio-spectrum-analyzer-ca2926

Contents:
0:00 Introduction
0:28 Block Diagram
0:47 ST9720 LCD Interface with Arduino Nano
1:12 Demonstration: Square Waveform Analysis
1:41 C++ Sketch
3:24 Future Project: ST9720 LCD Interfaced with ESP32 Controller