Adafruit TSL2591 High Dynamic Range Digital Light Sensor
We have ✅ 2 available of the AF-1980 in our Sydney warehouse. An extra 27 units available with a short lead time.
The Adafruit TSL2591 is an ultra-high-range digital light sensor with a massive 600,000,000:1 dynamic range. It features both infrared and full-spectrum photodiodes, allowing you to separately measure infrared, full-spectrum, or human-visible light for accurate lux calculations across an enormous range from 188 µLux to 88,000 Lux.
An upgrade from the TSL2561, the TSL2591 offers a wider measurement range and configurable gain/timing settings. It communicates over I2C with a built-in ADC, so no analog pins are needed. Power consumption is extremely low — about 0.4mA when sensing and less than 5µA in power-down mode, making it ideal for battery-powered data logging.
Key Features
- 600,000,000:1 Dynamic Range – Exceptional range from 188 µLux to 88,000 Lux
- Dual Photodiodes – Separate infrared and full-spectrum diodes for accurate human-visible light measurement
- Configurable Gain and Timing – Adapt to different lighting conditions on the fly
- I2C Interface – Digital output with built-in ADC, no analog pins needed
- Ultra-Low Power – ~0.4mA active, <5µA in power-down mode
- Precise Lux Calculation – Library-supported conversion from raw readings to calibrated lux values
Ideal For
- High dynamic range light measurement
- Low-power environmental data logging
- Display brightness auto-adjustment
- Greenhouse and agricultural light monitoring
- Astronomy and low-light sensing applications
Package Contents
- 1× Adafruit TSL2591 High Dynamic Range Digital Light Sensor Breakout
Resources
The Adafruit TSL2591 High Dynamic Range Digital Light Sensor appears in the following collections:
