#include #include //#include BH1750 lightMeter; void setup() { Serial.begin(9600); // Initialize Wire.begin(); // On esp8266 you can select SDA and SCL pins using Wire.begin(D4, D3); // For Wemos / Lolin D1 Mini Pro and the Ambient Light shield use Wire.begin(D2, D1); lightMeter.begin(); Serial.println(F("BH1750 Test begin")); } void loop() { float lux = lightMeter.readLightLevel(); Serial.print("Light: "); Serial.print(lux); Serial.println(" lx"); delay(1000); }