#!/usr/bin/python

import time #, signal, sys
from Adafruit_ADS1x15 import ADS1x15

#def signal_handler(signal, frame):
#        print 'You pressed Ctrl+C!'
#        sys.exit(0)
#signal.signal(signal.SIGINT, signal_handler)

ADS1015 = 0x00  # 12-bit ADC
ADS1115 = 0x01  # 16-bit ADC
adc = ADS1x15(ic=ADS1115)

# read channel 0 in single-ended mode, +/- 4.096V, 250 sps:
volts = adc.readADCSingleEnded(0, 4096, 250) / 1000

print "%.6f" % (volts)