text: #!/usr/bin/env python
  
  # Light each LED in sequence, and repeat.
  
  import fastopc, time
  import numpy as np
  import functionLib as lib
  
  nStrips = 16
  lStrip  = 64
  
  client = fastopc.FastOPC('localhost:7890')
  
  n = 1
  dir = 1
  pixels = lib.Pixels(nStrips, lStrip, 20)
  theoStrip = np.zeros([lStrip*nStrips,3])
  color=2
  theoStrip[n,color] = 255
  
  while True:
      if n == (nStrips*lStrip-1):
          dir *=-1
      elif n == 0:
          dir*=-1
          theoStrip=np.roll(theoStrip, 1, axis=1)
      theoStrip = np.roll(theoStrip, dir*129, axis=0)
      pixels.update(theoStrip, 0.7, 0.01)
      client.putPixels(0, pixels.getArrayForDisplay())
      n+=dir
      time.sleep(0.01)
  