GY-2561 TSL2561 Luminosity Sensor Breakout Module (I2C Digital Ambient Light & Infrared Sensor)

The GY-2561 TSL2561 Luminosity Sensor Breakout is a compact digital light sensing module based on the TSL2561 ambient light sensor. It measures both visible and infrared light to provide accurate digital luminosity data over an I2C interface. Designed for low-power operation and high sensitivity, the module is ideal for automatic brightness control, environmental monitoring, smart lighting systems, and embedded applications. Its breakout board format allows easy integration with Arduino, Raspberry Pi, ESP32, STM32, and other microcontroller platforms.

Key Features -

• Based on the TSL2561 digital luminosity sensor IC

• Measures both visible and infrared light intensity

• High-sensitivity ambient light detection

• Digital light measurement via I2C interface

• Wide ambient light measurement range

• Low power consumption for battery-powered applications

• Compact breakout board for easy integration

• Compatible with Arduino, Raspberry Pi, ESP32, STM32, and other microcontrollers

• Suitable for automatic brightness control and environmental sensing

• Reliable digital output with minimal external components

Specifications -

• Product type - Digital Luminosity Sensor Module

• Model - GY-2561

• Main IC / Chipset - TSL2561

• Operating voltage - 3.3V to 5V DC (Typical)

• Light measurement - Visible and Infrared Light

• Output type - Digital Luminosity Data

• Communication interface - I2C

• Light range - Wide ambient light range

• Accuracy - High-sensitivity light measurement

• Package / Mounting type - Breakout Board

Applications -

• Automatic display brightness control

• Ambient light monitoring systems

• Smart lighting and home automation

• Weather and environmental monitoring stations

• IoT light sensing applications

• Industrial light measurement systems

• Robotics and embedded electronics

• Arduino and Raspberry Pi projects