BH1750 GY-302 Digital Light Sensor / Light Intensity Sensor with I2C

The BH1750 is a light sensor that measures brightness digitally in lux. Thanks to the I2C bus, only two lines to the Arduino are needed. The GY-302 module runs at 3 V to 5 V.

Recommended Accessories:

• Dupont Cable M-F 20cm 20 Pieces

Features:

• Output directly in lux, no conversion needed
• I2C address selectable via the ADDR pin
• Voltage regulator on the module
• Arduino library «BH1750» in the Library Manager

Application Examples:

• Brightness-dependent control of lights and displays
• Measuring room lighting
• Weather stations
• Integration into Home Assistant with ESPHome

Documentation:

• ESPHome documentation: BH1750 Ambient Light Sensor
• BH1750FVI light sensor module (Wolles Elektronikkiste, German)
• BH1750 with Arduino guide (Random Nerd Tutorials)
• BH1750 Library (GitHub)
• BH1750 datasheet (PDF)

Technical Data:

• Model: BH1750, module GY-302
• Operating voltage: 3 V to 5 V
• Resolution: 16 bits
• Measuring range: 0 to 54612 lux (raw value up to 65535, divided by 1.2)
• I2C address ADDR to GND: 0x23
• I2C address ADDR to 3.3 to 5 V: 0x5C
• Pins: VCC, GND, SCL, SDA, ADDR
• Pitch: 2.54 mm
• Mounting hole diameter: 3 mm
• Dimensions: 18.5 × 13.5 × 2.3 mm
• Weight: 1.5 g

Scope of Delivery:

• 1× BH1750 module
• 1× Pin header (5-pin)