Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Chip Model	TSL2561
Communication Interface	I2C
Operating Voltage	3.3V to 5V DC
Light Measurement Range	1 to 40,000 Lux
Output Signal	Digital
Board Dimensions	25 x 15 x 3 mm
Weight	3 grams
Spectrum Response	Visible and Infrared
Integration Time	Programmable (13ms to 402ms)
Mounting Holes	2 x 3mm

5 reviews

Anonymous

Apr 11, 2026

Rating: 4/5

Great for Learning

Good value for money. Helps understand I2C communication protocols in practice.

Anonymous

Apr 04, 2026

Rating: 5/5

Perfect for Arduino Projects

Works flawlessly with my Arduino Uno. The library support is great and readings are consistent.

Anonymous

Mar 15, 2026

Rating: 5/5

Reliable Light Data

Using this for a solar tracker project. Very stable output even with changing conditions.

Anonymous

Mar 01, 2026

Rating: 5/5

Raspberry Pi Compatible

Connected easily to GPIO pins. No issues with voltage levels on the Pi 4.

Anonymous

Feb 16, 2026

Rating: 4/5

Good Sensor Module

Accurate readings for indoor lighting. Instructions could be clearer for beginners.

5 FAQ

Q: Is there a specific library available for this sensor?

A: Yes, the Adafruit TSL2561 library is fully compatible and easy to use.

Q: How many wires are needed for connection?

A: Typically 4 wires are required: VCC, GND, SDA, and SCL.

Q: Can it measure direct sunlight accurately?

A: It handles up to 40k Lux. Indirect sunlight is fine, but direct sun may saturate the sensor.

Q: Can this work with 5V logic levels?

A: Yes, the module supports 3.3V to 5V input voltage safely.

Q: What is the default I2C address for this module?

A: The default I2C address is 0x39. It can be changed via hardware straps if needed.

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