Merge pull request #256 from siddacious/bh1750

adding a noice ambient light sensor

Author: ladyada

.gitmodules

@@ -700,3 +700,6 @@
 [submodule "libraries/drivers/pcf8591"]
 	path = libraries/drivers/pcf8591
 	url = https://github.com/adafruit/Adafruit_CircuitPython_PCF8591.git
+[submodule "libraries/drivers/bh1750"]
+	path = libraries/drivers/bh1750
+	url = https://github.com/adafruit/Adafruit_CircuitPython_BH1750.git

docs/drivers.rst

@@ -366,6 +366,7 @@ These sensors detect light related attributes such as ``color``, ``light`` (unit
 
     APDS9960 Proximity, Light, RGB, and Gesture <https://circuitpython.readthedocs.io/projects/apds9960/en/latest/>
     AS726x Color Spectrum Sensor <https://circuitpython.readthedocs.io/projects/as726x/en/latest/>
+    BH1750 Ambient Light <https://circuitpython.readthedocs.io/projects/bh1750/en/latest/>
     TCS34725 Color Sensor <https://circuitpython.readthedocs.io/projects/tcs34725/en/latest/>
     TSL2561 Light Sensor <https://circuitpython.readthedocs.io/projects/tsl2561/en/latest/>
     TSL2591 High Dynamic Range Light Sensor <https://circuitpython.readthedocs.io/projects/tsl2591/en/latest/>