Adafruit BH1750 Light Sensor – STEMMA QT/Qwiic

The BH1750 light sensor measures ambient light intensity in lux (luminous flux per unit area) using a photodiode that senses light levels and converts this into a digital signal. The sensor outputs 16-bit light measurements, allowing for precise light intensity readings.

Ambient Light Sensor

• Exceed Voltage Limits: Do not connect the sensor to a voltage supply outside the 3V to 5V range to avoid damaging the sensor.,
• Expose To Extreme Conditions: Avoid exposing the sensor to extreme environmental conditions that could affect its performance or damage it.,
• Block Light Path: Ensure that the path between the light source and the sensor is unobstructed for accurate measurements.

• Use Appropriate Voltage: Ensure the sensor is connected to a power supply between 3V and 5V.,
• Calibrate The Sensor: Calibrate the sensor for accurate measurements, especially when measuring light levels near the upper limit of its range.,
• Use Level Shifting Circuitry: Utilize the integrated level shifting circuitry when connecting to devices with different operating voltages.

• Description: Capable of measuring light intensity from 1 lux to 65535 lux, and potentially up to 100,000 lux with calibration and adjustment.

• Description: The sensor operates within a voltage range of 3 to 5 volts.

• Description: Connect the sensor to a microcontroller using the I2C communication protocol. Ensure that the SDA (data line) and SCL (clock line) are properly connected along with the power and ground lines.

The sensor has dimensions of 25.3mm in length, 17.7mm in width, and 4.5mm in height, weighing 2.5 grams.