Arduino-Scrolltext-Weather-Report/graphic-eq.py

from connection import *
from audioHandler import Listener
import numpy as np
import time
import math
import sys, getopt

framerate = 40 #Hz
dataTime = 1/30
agcTime = 10
graphs = True
outDev = True
port = None

try:
  opts, args = getopt.getopt(sys.argv[1:],"hsif:t:a:w:",["shadow=","input=","framerate=","time=","agc=","port="])
except getopt.GetoptError:
  print('main.py -s (shadow) -i (use input) -f --framerate <f=40>\n        -t --time <t=0.033> -a --agc <a=10> -p --port <COM3>')
  sys.exit(2)
for opt, arg in opts:
  if opt == '-h':
     print('main.py -s (shadow) -i (use input) -f --framerate <f=40>\n        -t --time <t=0.033> -a --agc <a=10> -p --port <COM3>')
     sys.exit()
  elif opt in ("-s", "--shadow"):
    graphs = False
  elif opt in ("-i", "--input"):
    outDev = False
  elif opt in ("-f", "--framerate"):
    framerate = float(arg)
  elif opt in ("-a", "--agc"):
    agcTime = float(arg)
  elif opt in ("-t", "--time"):
    dataTime = float(arg)
  elif opt in ("-p", "--port"):
    port = arg

matrix = SerialConnection()
matrix.open(port)

pitches = [(2**(1/12))**(n/11*12*7-30) * 220 for n in range(11)]
audio = Listener(dataTime, agcTime, not outDev)
audio.start()

nFFT = audio.buffersize
audio.fftSetLimits(nFFT, min(pitches), max(pitches))
audio.agcFftSetLimits(60/60, 300/60)

curVal    = [0] * N_COLS
maxVolRow = [0] * N_COLS
maxVolAge = [0] * N_COLS
intervalTime = time.time()
data = [0] * 50

while True:
  if audio.hasNewData():
    fft = np.copy(audio.fft)
    sums = audio.fftGroup(fft, pitches)
    data = [0] * 50
    for col in range(N_COLS):
      curVal[col] = max(sums[col] * len(sums) * 1.5 * 1.1**col, curVal[col]*0.80)
      curRow = max(N_ROWS - int(curVal[col]), 0)

      if curRow <= maxVolRow[col]:
        maxVolRow[col] = curRow
        maxVolAge[col] = 60
      elif maxVolAge[col] > 0:
        maxVolAge[col] -= 1
      else:
        maxVolRow[col] = N_ROWS

      if maxVolRow[col] < N_ROWS:
        data[maxVolRow[col]*N_COLS+col] = int(maxVolAge[col]/10)

      if curRow < N_ROWS:
        for row in range(curRow, N_ROWS):
          data[row*N_COLS+col] = 15-curRow-row
    data[49] = int(data[49]/2)

  matrix.send(b'A' + bytes(data))
  time.sleep(1/framerate)

  if time.time() - intervalTime > 60:
    if not matrix.isConnected():
      print("lost serial connection, retrying to connect...")
      matrix.connect()
      
    audio.stop()
    audio.start()
    intervalTime = time.time()