====== BHI1750(i2c) ======
pythonプログラム
　　wget https://bitbucket.org/MattHawkinsUK/rpispy-misc/raw/master/python/bh1750.py

raspberrpyとの接続pin
^raspi ^BHI1750(i2c)^
|1:3.3v|VCC|
|3:SDA|SDA|
|5:SCL|SCL|
|9:GND|GND|
| |ADD|