# RaspEasy7a.py
# Read ADC with a function call

import smbus
import time

def readData(port = 0):
    if port == 0:
        adc_address = 0x48
    elif port == 1:    
        adc_address = 0x4D
    rd = bus.read_word_data(adc_address, 0)
    data = ((rd & 0xFF) << 8) | ((rd & 0xFF00) >> 8)
    data = data >> 2
    return data

print "starting..."
bus = smbus.SMBus(1) 
while True:
    v = readData()
    print "data:", v
    time.sleep(1)