import datetime
import smbus

def bh1750fvi_data():
    
    bus = smbus.SMBus(1)
    addr = 0x23
    luxRead = bus.read_i2c_block_data(addr, 0x11)
    lx = str(luxRead[1] * 10)
#    print(datetime.datetime.now())
    print('Illuminance: ' + lx + ' lux')
    
    return lx


if __name__ == '__main__':
    bh1750fvi_data()