Grove - Digital Light Sensor

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DESCRIPTION This module is based on the I2C light-to-digital converter TSL2561 to transform light intensity to a digital signal. Different from 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.

Features Selectable detection modes 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

Application Ideas Ambient light sensing Backlighting control for display panel Keyboard illumination control 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 your using of the product.

Documents Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to ourforum.

For more detail, please visit:


Digital light sensor v1.0


ID Name Designator Footprint Quantity
1 TSL2561 U1 TMB-6 1
2 Grove J1 4P-2.0 1
3 NO U3 SOT23 1
4 1uF C1,C2 C0603 2
5 100nF C3 C0603 1
6 10K R1,R2,R3,R4 R0603 4
7 BSN20 Q1,Q2 SOT23 2


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