Adafruit BH1750 Light Sensor – STEMMA QT/Qwiic


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SKU: 1012194
  1. Supply voltage: from 3 V to 5 V
  2. Measuring range: from 1 lux to 65535 lux
  3. Communication interface: I2C
  4. STEMMA QT / Qwiic connector


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Brand: Adafruit
Category: Light/color Sensor
Tags: STEMMA QT/Qwiic, BH1750

This is the BH1750 16-bit Ambient Light Sensor from Rohm. Because of how important it is to humans and most other living things, sensing the amount of light in an environment is commonplace to get started when learning to work with microcontrollers and sensors. It’s a small, capable and inexpensive light sensor that you can include in your next project to add the detection and measurement of light.

The BH1750 provides 16-bit light measurements in lux, the SI unit for measuring light, making it easy to compare against other values like references and measurements from other sensors. The BH1750 can measure from 0 to 65K+ lux, but with some calibration and advanced adjustment of the measurement time, it can even be convinced to measure as much as 100,000 lux!

Sensors tend to come in small packages and the BH1750 is no different.

Packaged on a PCB in our STEMMA QT form factor, the BH1750 comes integrated with a voltage regulator and level shifting circuitry to allow it to be used with 3.3V devices, like a Feather M4 or Raspberry Pi, or 5V devices, such as an Arduino.


  1. Small, capable, and inexpensive light sensor
  2. 16-bit light measurements in lux
  3. 0 lux to 65K+ lux measurement range
  4. 25.3mm x 17.7mm x 4.5mm dimensions

Package Includes:

1 x Adafruit BH1750 Light Sensor – STEMMA QT/Qwiic

SKU: 1012194 Category: Tags: ,
Input Supply Voltage (VDC)

3 ~ 5

Measuring Range

1 lux to 65535 lux

Communication Interface


Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.005 kg
Shipping Dimensions 3 × 2 × 1 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Questions and answers of the customers

  1. 0 votes
    Q is this an analog sensor? answer now
    Asked by iam3182 on April 2, 2024 3:50 pm

    No, it is not an analog sensor; it’s a digita... Read more

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