Adafruit TSL2591 High Dynamic Range Digital Light Sensor – STEMMA QT


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SKU: 1012206
  1. Approximates Human eye Response
  2. Extremely wide dynamic range 1 to 600,000,000 Counts
  3. Lux Range: 188u Lux sensitivity, up to 88,000 Lux input measurements
  4. Voltage range: 3.3-5V into the onboard regulator
  5. This board/chip uses I2C 7-bit addresses 0x29 and 0x28 (yes BOTH!)


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Brand: Adafruit
Category: Light/color Sensor
Tags: TSL2591

The 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 188u lux up to 88,000 Lux on the fly.

The best part of this Adafruit TSL2591 Digital Light 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 has a massive 600,000,000:1 dynamic range! Unlike the TSL2561 you cannot change the I2C address, so keep that in mind.

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. about 0.4mA when actively sensing, and less than 5 uA when in power-down mode.

As if that weren’t enough, we’ve also added SparkFun qwiic compatible STEMMA QT connectors for the I2C bus so you don’t even need to solder. Just wire up to your favorite micro with a plug-and-play cable to get data ASAP. For a no-solder experience, just wire up to your favorite micro using a STEMMA QT adapter cable. The Stemma QT connectors also mean the TSL2591 can be used with our various associated accessories. QT Cable is not included, but we have a variety in the shop.

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Package Includes:

1 x Adafruit TSL2591 High Dynamic Range Digital Light Sensor – STEMMA QT

SKU: 1012206 Category: Tag:
Input voltage

3.3 ~ 5



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Weight (g):


Shipping Weight 0.005 kg
Shipping Dimensions 2 × 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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Country Of Origin: India