Adafruit TSL2591 High Dynamic Range Digital Light Sensor

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Product Code: 91914
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Product Description
  • High dynamic range digital light sensor TSL2591
  • 600,000,000:1 dynamic range
  • Can separately measure infrared, full-spectrum or human visible
  • Built in ADC
  • Approximates Human eye Response
$10.00
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Adafruit TSL2591 High Dynamic Range Digital Light Sensor info

TSL2591 luminosity sensor is an advanced digital light sensor, ideal for use in a wide range of light situations. Compared to low cost CdS cells, this sensor is more precise, allowing for exact lux calculations and can be configured for different gain/timing ranges to detect light ranges from 188 uLux up to 88,000 Lux on the fly.

The best part of this sensor is that it contains both infrared and full spectrum diodes. That means you can separately measure infrared, full-spectrum or human-visible light. Most sensors can only detect one or the other, which does not accurately represent what human eyes see (since we cannot perceive the IR light that is detected by most photo diodes). This sensor is much like the TSL2561 but with a wider range (and the interface code is different). This sensor’s has a massive 600,000,000:1 dynamic range. Maybe one drawback is that you cannot change the I2C address of this sensor unlike TSL2561.

The built in ADC means you can use this with any microcontroller, even if it doesn't have analog inputs. The current draw is extremely low, so it’s great for low power data-logging systems. The current draw is about 0.4mA when actively sensing, and less than 5 uA when in power-down mode.

 

Adafruit TSL2591 High Dynamic Range Digital Light Sensor - General Specifications

  • High dynamic range digital light sensor TSL2591
  • 600,000,000:1 dynamic range
  • Can separately measure infrared, full-spectrum or human visible
  • Built in ADC
  • Approximates Human eye Response

 

Adafruit TSL2591 High Dynamic Range Digital Light Sensor- Technical Specifications

  • Lux Range: 188 uLux sensitivity, up to 88,000 Lux input measurements.
  • Temperature range: -30 to 80 *C
  • Voltage range: 3.3-5V into onboard regulator
  • Interface: I2C
  • This board/chip uses I2C 7-bit address 0x29 (fixed)
  • Dimensions: 19mm x 16mm x 1mm / .75" x .63" x .04"
  • Weight: 1.1g

 

Documents

Adafruit Learn Link: https://learn.adafruit.com/adafruit-tsl2591

TSL2591 Datasheet

 

References

Adafruit Product Page: https://www.adafruit.com/products/1429

 

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