Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Compatibility	Supports GY-33, GY-31, TCS3200D, and TCS34725
Operating Voltage	3.3V to 5V DC
Interface Type	UART / TTL Serial Communication
Detection Mode	RGB Color Recognition and Ambient Light Sensing
Output Format	Digital RGB Values and Hex Codes
PCB Dimensions	Approx. 25mm x 18mm
Mounting Hole Size	3mm diameter for standard standoffs
Response Time	Fast response suitable for real-time sorting
Application Scope	Ideal for Arduino, Raspberry Pi, and DIY Robotics
Package Contents	1x Sensor Module, 1x Pin Header Strip

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Reliable and fast

Fast response time makes it great for conveyor belt applications. The RGB values are stable and repeatable. Documentation could be slightly better, but community forums helped fill the gaps.

Anonymous

Mar 26, 2026

Rating: 4/5

Great value but needs calibration

The sensor is very sensitive and picks up subtle color differences. You do need to spend some time calibrating it for your specific environment, but once done, it performs consistently.

Anonymous

Mar 23, 2026

Rating: 5/5

Excellent for educational purposes

We used these in our university lab for a line-following and object sorting competition. The UART output makes parsing data very simple. No issues after weeks of continuous use.

Anonymous

Mar 13, 2026

Rating: 5/5

Perfect for my sorting robot project

This module worked flawlessly with my Arduino Uno. The color recognition is surprisingly accurate even under varying light conditions. Setup was straightforward using the provided library examples.

Anonymous

Mar 09, 2026

Rating: 5/5

Versatile multi-model support

I appreciate that this board supports multiple chipsets like the TCS34725. It makes prototyping easier since I can swap logic without changing hardware. Highly recommended for students.

Anonymous

Mar 04, 2026

Rating: 4/5

Good sensitivity, compact size

The small form factor fits perfectly into tight spaces in my custom enclosure. The only reason for 4 stars is that the pin headers were not pre-soldered, but that's a minor inconvenience.

5 FAQ

Q: Is there a Python library available for Raspberry Pi integration?

A: Yes, several open-source Python libraries are available on GitHub that utilize the serial UART interface to communicate with this sensor on Raspberry Pi models.

Q: Does this module work directly with 5V Arduino boards without a level shifter?

A: Yes, the module operates within a 3.3V to 5V range, so it can be connected directly to 5V Arduino boards like the Uno or Mega without additional level shifting.

Q: What is the maximum distance for accurate color detection?

A: For optimal accuracy, the sensor should be placed between 5mm to 10mm from the target object. Accuracy drops significantly beyond 15mm.

Q: Does the package include the connecting wires?

A: The package includes the sensor module and a pin header strip. Connecting wires are not included and should be purchased separately based on your project requirements.

Q: Can this sensor detect colors through transparent plastic?

A: While it can detect colors through very thin transparent materials, accuracy may decrease depending on the tint and thickness of the plastic. Direct line of sight yields the best results.

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