Merge remote-tracking branch 'upstream/master' into master

examples/BH1750test/BH1750test.ino

@@ -34,6 +34,7 @@ void setup(){
   // Initialize the I2C bus (BH1750 library doesn't do this automatically)
   Wire.begin();
   // On esp8266 you can select SCL and SDA pins using Wire.begin(D4, D3);
+  // For Wemos / Lolin D1 Mini Pro and the Ambient Light shield use Wire.begin(D2, D1);
 
   lightMeter.begin();