slide

movie

final Project Movie

code

        #include <Adafruit_NeoPixel.h>
        #ifdef __AVR__
          #include <avr/power.h>
        #endif

        #define PIN            6

        #define NUMPIXELS      88
        int limit = 80; //LED点灯の閾値。
        //FFT
        #define LIN_OUT 1 // 出力をリニアにする。
        #define FFT_N 256 // set to 256 point fft
        #include <FFT.h> // include the library

        Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

        int delayval = 500; // delay for half a second

        void setup() {
          Serial.begin(57600);
          pixels.begin(); // This initializes the NeoPixel library.
          TIMSK0 = 0; // turn off timer0 for lower jitter
          ADCSRA = 0xe5; // set the adc to free running mode
          ADMUX = 0x40; // use adc0
          DIDR0 = 0x01; // turn off the digital input for adc0
        }

        void loop() {
          while(1) { // reduces jitter
            Serial.println(fft_lin_out[1]);
            cli();  // UDRE interrupt slows this way down on arduino1.0
            for (int i = 0 ; i < 512 ; i += 2) { // save 256 samples
              while(!(ADCSRA & 0x10)); // wait for adc to be ready
              ADCSRA = 0xf5; // restart adc
              byte m = ADCL; // fetch adc data
              byte j = ADCH;
              int k = (j << 8) | m; // form into an int
              k -= 0x0200; // form into a signed int
              k <<= 6; // form into a 16b signed int
              fft_input[i] = k; // put real data into even bins
              fft_input[i+1] = 0; // set odd bins to 0
            }
            fft_window(); // window the data for better frequency response
            fft_reorder(); // reorder the data before doing the fft
            fft_run(); // process the data in the fft
            fft_mag_lin(); // take the output of the fft リニアで値をとる。
            sei();
            //led
            //01
            if(fft_lin_out[9] > limit){
              ch1_on();
            }else {
              ch1_off();
            }
            //02
            if(fft_lin_out[8] > limit){
              ch2_on();
            }else {
              ch2_off();
            }
            //03
            if(fft_lin_out[7] > limit){
              ch3_on();
            } else {
              ch3_off();
            }
            //04
            if(fft_lin_out[6] > limit){
              ch4_on();
            } else {
              ch4_off();
            }
            //05
            if(fft_lin_out[1] > limit ){
              ch5_on();
            }else {
              ch5_off();
            }
          }
        }
        void ch1_on(){
          for(int i=72;i<80;i++){
            pixels.setPixelColor(i, pixels.Color(random(50),random(100),random(150))); // Moderately bright green color.
            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }
        void ch1_off(){
          for(int i=72;i<80;i++){
            pixels.setPixelColor(i, pixels.Color(0,0,0)); // Moderately bright green color.
            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }
        void ch2_on(){
          for(int i=64;i<72;i++){
            pixels.setPixelColor(i, pixels.Color(random(50),random(100),random(150))); // Moderately bright green color.
            pixels.setPixelColor(i+16, pixels.Color(random(50),random(100),random(150)));
            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }
        void ch2_off(){
          for(int i=64;i<72;i++){
            pixels.setPixelColor(i, pixels.Color(0,0,0)); // Moderately bright green color.
            pixels.setPixelColor(i+16, pixels.Color(0,0,0));
            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }
        void ch3_on(){
          for(int i=0;i<10;i++){
            pixels.setPixelColor(i, pixels.Color(random(50),random(100),random(150))); // Moderately bright green color.
            pixels.setPixelColor(i+53, pixels.Color(random(50),random(100),random(150)));
            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }
        void ch3_off(){
          for(int i=0;i<10;i++){
            pixels.setPixelColor(i, pixels.Color(0,0,0)); // Moderately bright green color.
            pixels.setPixelColor(i+53, pixels.Color(0,0,0));
            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }
        void ch4_on(){
          for(int i=11;i<23;i++){
            pixels.setPixelColor(i, pixels.Color(random(50),random(100),random(150))); // Moderately bright green color.
            pixels.setPixelColor(i+29, pixels.Color(random(50),random(100),random(150)));
            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }
        void ch4_off(){
          for(int i=11;i<23;i++){
            pixels.setPixelColor(i, pixels.Color(0,0,0)); // Moderately bright green color.
            pixels.setPixelColor(i+29, pixels.Color(0,0,0));
            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }
        void ch5_on(){
          for(int i=24;i<39;i++){
            pixels.setPixelColor(i, pixels.Color(random(50),random(100),random(150))); // Moderately bright green color.

            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }
        void ch5_off(){
          for(int i=24;i<39;i++){
            pixels.setPixelColor(i, pixels.Color(0,0,0)); // Moderately bright green color.

            pixels.show(); // This sends the updated pixel color to the hardware.

            delay(delayval); // Delay for a period of time (in milliseconds).

          }
        }