Arduino LED Music Spectrum

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Introduction: Arduino LED Music Spectrum

In this tutorial I'm going to show you how to make LED Spectrum with arduino.

First make this LED Matrix for Arduino. https://www.instructables.com/id/Arduino-LED-Scrolling-Text-Simple-Easy/

Use the Code on this Instructable below and upload it to arduino.(fixx_ftt files are the libraries)

Connect the Audio out of the music playing device to arduino Analog pin A0.

Make a comment thank you.

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    9 Comments

    hey i have bit problem when i try upload code to arduino i get some error

    F77HKA9I4SCTVX9.ino:1:21: error: fix_fft.h: No such file or directory

    F77HKA9I4SCTVX9.ino: In function 'void loop()':

    F77HKA9I4SCTVX9:27: error: 'fix_fft' was not declared in this scope

    how i fix it mayby someone can help whit what?

    Hey, I've got the scrolling text working, added the fix_fft files through the libraries, but i'm getting a number of errors appearing for the cpp file:

    C:\Users\Liam\Documents\Arduino\libraries\fix_fft\fix_fft.cpp:55:7: error: 'prog_int8_t' does not name a type

    const prog_int8_t Sinewave[N_WAVE-N_WAVE/4] PROGMEM = {

    ^

    In file included from C:\Users\Liam\Documents\Arduino\libraries\fix_fft\fix_fft.cpp:1:0:

    C:\Users\Liam\Documents\Arduino\libraries\fix_fft\fix_fft.cpp: In function 'int fix_fft(char*, char*, int, int)':

    C:\Users\Liam\Documents\Arduino\libraries\fix_fft\fix_fft.cpp:204:28: error: 'Sinewave' was not declared in this scope

    wr = pgm_read_word_near(Sinewave + j+N_WAVE/4);

    ^

    C:\Users\Liam\Documents\Arduino\libraries\fix_fft\fix_fft.cpp:214:28: error: 'Sinewave' was not declared in this scope

    wi = -pgm_read_word_near(Sinewave + j);

    can you give us the shematiques i don't know how to read the ino file. thanks

    wprogram.h no such file directory... i got this error? any idea how to get rid of these.

    i think the library is missing

    Don't you need to amplify before connecting to arduino?

    This works without any amplifier. I just connected this to my mobile phone headphone out and worked perfect.