Grove - Digital Light Sensor

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Grove - Digital Light Sensor

Grove - Digital Light Sensor

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Optical Sensor Development Tools Grove - Digital Light Sensor
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For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before you use this product.


  • Selectable detection modes: infrared mode, full-spectrum mode, and human visible mode
  • High-resolution: 16-Bit digital output at 400 kHz I2C Fast-Mode
  • Wide dynamic range: 0.1 - 40,000 LUX
  • Wide operating temperature range: -40°C to 85°C
  • Programmable interrupt function with User-Defined Upper and lower threshold settings


This module is based on the I2C light-to-digital converter TSL2561 to transform light intensity to a digital signal and can be used to measure the change in light intensity for various applications.The TSL2561 is controlled and monitored by sixteen registers (three are reserved) and a command register accessed through the serial interface. These registers provide for a variety of control functions and can be read to determine the results of the ADC conversions. Different from the traditional analog light sensor, as Grove - Light Sensor, this digital module features a selectable light spectrum range due to its dual light-sensitive diodes: infrared and full spectrum. You can switch between three detection modes to take your readings. They are infrared mode, full-spectrum, and human visible mode. When running under the human visible mode, this sensor will give you readings just close to your eye feelings. With its high-resolution and wide operating temperature range, you can use it to measure the change in light intensity in various light situations with many popular microcontrollers.


  • Ambient light sensing
  • Backlighting control for display panel
  • Keyboard illumination control 
Grove - Digital Light Sensor
  • Packaging - Bulk
  • Product - Add-On Modules
  • Series - Grove
  • Type - Ambient Light Sensor
  • Brand - Seeed Studio
  • Interface Type - I2C
  • Manufacturer - Seeed Studio
  • Maximum Operating Temperature - + 85 C
  • Minimum Operating Temperature - - 40 C
  • Operating Supply Voltage - 5 V
  • Product Type - Optical Sensor Development Tools
  • Standard Pack Qty - 1
  • Subcategory - Development Tools
  • Tool Is For Evaluation Of - TSL2561
  • Tradename - Grove