         if (max_value < fft_lin_out[i]) {
             // peak index determines frequency
             peak_index = i;
-            // max value determines brightness
+            // max value was used to determine brightness, now using sum_fft
             max_value = fft_lin_out[i];
         }
         if (i > 0) {
             /* 
-             * maybe an alternate way to control brightness
-             * would be the sum of all non-zero bins, i.e. 
+             * alternate way to control brightness
+             * by summng all bins except the first bin, i.e. 
              * the total power in the sample. However, I don't
              * have a handle on what the maximum sum would be.
              */

 * Perhaps this doesn't occur on mixers, and it may be possible to
 * eliminate with an OpAmp and/or low pass filter circuit
 */
int MIN_FFT_SUM = 3200;

// LEDeez
int brightness;  // controls the LED brightness based on dB level
// LEDs can be set up to 127, but it seems too bright so we tone it down a bit
int MAX_BRIGHTNESS = 95;

float base_freak = SAMPLE_RATE / FFT_N / 2;


int sum_fft;
float frequency;
float SAMPLE_RATE = 9600.0;
int SKIP_MULT = 8;
int MAX_FFT_BIN = 16383;

/*
