TSL2591X Light Sensor

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Revision as of 12:23, 8 January 2020 by Chenqi (talk | contribs) (Features)
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Introduction

The ambient light sensor can sense the surrounding light conditions and tell the processing chip to automatically adjust the brightness of the display backlight to reduce the power consumption of the product. For example, in handheld applications such as mobile phones, notebooks, GPS and other mobile devices, the display consumes up to 30% of the total battery power, and the use of ambient light sensors can maximize the battery's working time.

CQRTSL25911 Ambient light sensor integrates TSL25911FN chip, measures infrared plus visible light (wider range than TSL2561), features 600M: 1 wide dynamic range, Detects Light Intensity up to 88000Lux (Bright Sunlight), Controlled via I2C Interface, low power consumption. It is capable of operating across various light environment. Onboard voltage translator, compatible with 3.3V/5V operating voltage, Compatible with Raspberry Pi, Arduino, STM32 and other motherboards.

Features

  • Adopts TSL25911FN, measures infrared plus visible light (wider range than TSL2561)
  • Embedded ADC, direct light intensity signal output to I2C interface, less noise jamming
  • High sensitivity up to 188uLux, wide dynamic range up to 600M:1
  • Embedded infrared-responding photodiode, allows precise measuring even on strong infrared noise environment
  • Provides interrupt output with programmable upper and lower thresholds
  • Onboard voltage translator, compatible with 3.3V/5V operating voltage
  • Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)
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Specifications

  • Model: CQRTSL25911
  • Light sensor: TSL25911FN
  • Communication interface: I2C (constant address: 0x29)
  • Effective range: 0 to 88000Lux (Bright Sunlight)
  • Operating voltage: 3.3V/5V
  • Dimensions: 27mm * 25mm
  • Mounting hole size: 3.0mm