#def _getDB():
#    samples = []
#    for x in range(0,5):
#   samples.insert(x, mcp.read_adc(0))
#   time.sleep(0.01)
#    signalMax = 0
#    signalMin = 1024
#    for y in samples:
#       if y>signalMax:
#       signalMax = y
#       else:
#       if y<signalMin:
#           signalMin = y
#    peakToPeak = (float) (signalMax-signalMin)
#   volts = (float) ((peakToPeak*5.0)/1024)
#    db = 0.0
#    try:#
#   db = (float)(20*math.log10(volts*2000))
#    except:
#   pass
#    return int(db)