Measure Light and Optical Changes with a Compact Sensor

The Fingerprint Sensor (GT-NUCL1633) is an optical light imaging photon sensor module designed for light logging, optical switching, line tracking, and brightness-aware projects. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Interface: SPI.

Why you’ll love it

• 3.3V Supply Voltage: 3.3V Supply Voltage
• 20°-70°C Operating Temperature: 20°-70°C Operating Temperature
• Easy wiring: SPI
• Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
• Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards
• Project-ready sensing: light logging, optical switching, line tracking, and brightness-aware projects

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What you can build

This sensor is a good fit for automatic brightness control, line followers, light meters, UV monitors, flame detection, and optical encoders.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include short jumper wires, breakout headers, displays, and logging modules, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Wiring & usage notes

Connect power and ground, then wire SCK, MISO, MOSI, and CS to your controller. Keep wires short for stable reads.

What’s in the box

1 × Fingerprint Sensor (GT-NUCL1633)

Frequently Asked Questions