When the future is dazzlingly-bright, this ultra-high-range luminosity sensor will help you measure it. 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 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 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 its great for low power data-logging systems. about 0.4mA when actively sensing, and less than 5 uA when in power-down mode.

Of course, we wouldn't leave you with a datasheet and a "good luck!" - we wrote a detailed tutorial showing how to wire up the sensor, use it with an Arduino and example code that gets readings and calculates lux.

Technical Details

Chip specifications

  • TSL2591 Datasheet
  • Approximates Human eye Response
  • Extremely wide dynamic range 1 to 600,000,000 Counts
  • 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

Learn

From 0.000118 to 88,000 Lux, you can sense it!

Light Sensor - TSL2591 High Dynamic Range Digital Lux Sensor [1980]

  • Brand: Adafruit
  • Product Code: ADA-1980
  • Reward Points: 8
  • Availability: 3
  • £10.74

  • Ex Tax: £8.95
  • Price in reward points: 100

Light Sensor - BH1750

Light Sensor - BH1750

£16.24

This is a BH1750 light intensity sensor breakout board with a 16 bit AD converter built-in which can ...

Qty: 5

Light Sensor (Panel Mount) - Grove

Light Sensor (Panel Mount) - Grove

£4.07

Panel mount Light sensor module uses the GL5528 photoresistor to detect the light intensity of the ...

Qty: 5

LightSense Module (.NET Gadgeteer Compatible)

LightSense Module (.NET Gadgeteer Compatible)

£4.88

LightSense Module measures light intensity.

Out Of Stock

Light Sensor - BH1750 (.NET Gadgeteer Compatible)

Light Sensor - BH1750 (.NET Gadgeteer Compatible)

£15.56

This module carries a BH1750, which is a digital ambient light sensor with digital output in Lux ...

Qty: 1

Light / Luminosity / Lux Digital Sensor Breakout - TSL2561 [439]

Light / Luminosity / Lux Digital Sensor Breakout - TSL2561 [439]

£6.90

The TSL2561 luminosity sensor is an advanced digital light sensor, ideal for use in a wide range of ...

Qty: 21

Light Sensor - Grove

Light Sensor - Grove

£4.33

The Light sensor module uses the GL5528 photoresistor to detect the light intensity of the ...

Out Of Stock

Analog Ambient Light Sensor - TEMT6000

Analog Ambient Light Sensor - TEMT6000

£8.38

A special ambient light detector (TMET6000) with spectral response that closely emulates the human ...

Qty: 1

Analog Light Sensor - LX1972

Analog Light Sensor - LX1972

£5.60

This analog light sensor uses LX1972 as its ambient light sensing part, with spectral response that ...

Qty: 5

Proximity/Light Sensor - VCNL4010 [466]

Proximity/Light Sensor - VCNL4010 [466]

£9.97

The VCNL4010 sensor is a nice way to add a small-distance proximity sensor to your microcontroller ...

Qty: 7

Analog Light Log-scale Sensor - GA1A12S202 [1384]

Analog Light Log-scale Sensor - GA1A12S202 [1384]

£5.27

The biggest improvement over plain photocells is a true log-lin relationship with light levels

Qty: 7

Analog Light Sensor Breakout - ALS-PT19 [2748]

Analog Light Sensor Breakout - ALS-PT19 [2748]

£4.00

The ALS PT19 analog light sensor is a great way to upgrade a project that uses a photocell and needs ...

Qty: 7