Add lightd code, auto light can work by infrared and relay now

guowenxue

2021-01-23 8fee9f5701ffdcc17e1f0f2453d495fe849d1fe2

 modules/python/sht20.py

old mode 100644
new mode 100755
@@ -1,4 +1,6 @@
#!/usr/bin/python
#-*- coding: utf-8 -*-

import fcntl
import time
import unittest