Features Dual Photodiode Design: The GY‑2561 features two photodiodes for detection of visible and infrared light, ensuring accurate readings in various lighting conditions Versatile Light Measurement: With capabilities to measure infrared, full-spectrum, and human-visible light separately, this sensor module offers comprehensive luminosity analysis Programmable Threshold Alerts: Set upper and lower luminosity thresholds to receive interrupt signals when light levels exceed defined limits, enhancing monitoring efficiency Features: 1、TSL2561 luminosity contains two photodiodes, one which can detect visible light and infrared (IR), and the second which can detect IR light. 2、With the sensor containing both infrared and full spectrum diodes gives the ability to separately measure infrared, full‑spectrum or human‑visible light. 3、Upper and lower thresholds of permitted luminosity can be programmed to give an interrupt signal when the actual illumination exceeds this threshold. 4、Digital output conforms to the standard SMBUS (TSL2560) and I2C(TSL2561) bus protocols. 5、Programmable control of analog gain and digital output time. Automatic suppression of 50 Hz/60 Hz light fluctuations. Specification: Condition: 100% Item Type: Luminosity Sensor Module Material: PCB Purpose: To convert luminosity into digital signal output Operating Voltage: 3V~5V DC Operating Current: 120uA-190uA (Maximum) Detection Range: 0.1-40000+ Lx Maximum Wavelength: 560nm Interface Type: I2C Output Mode: 16-bit digital output, with SMBUS (TSL2560) 100 kHz or I2C Temperature Range: -30~80℃ Package List: 1 x Sensor Module 1 x Pin Header Package List 1 x Sensor Module 1 x Pin Header