来源：转载自https://community.milkv.io/t/i2c-milk-v-duo-bh1750/627，原作者 LangZhao
This is a companion discussion topic for the original entry at http://forum.sophgo.com/t/milk-v-duo-bh1750/327
This is a companion discussion topic for the original entry at http://forum.sophgo.com/t/milk-v-duo-bh1750/327