# BH1750FVI test -2024.1.18-

import smbus
import time

bus = smbus.SMBus(1)
# BH1750FVI address
addr = 0x23

def main():
    luxRead = bus.read_i2c_block_data(addr, 0x10) # dummy read
    time.sleep(0.1)
    luxRead = bus.read_i2c_block_data(addr, 0x10) # main read
    lx = int((luxRead[0]*256 + luxRead[1]) / 1.2)
    print('Illuminance: ' + str(lx) + ' lux')
    
    return lx

if __name__ == '__main__':
    main()