Colour Sensor Module with 4-bit Analog Output

The colour sensor module detects the colour of a surface by reading the light reflected back from it. It outputs a 4-bit analog signal (a value across 4 data lines) that your microcontroller reads to identify the colour present. Operating voltage is 3V to 5V DC, so it works with Arduino Uno and most other common boards without any extra components. The colour sensor module connects via 6 pins and starts giving readings as soon as power is applied.

One non-obvious technical detail is that the 4-bit analog output gives you up to 16 distinct output combinations, but real-world colour detection depends heavily on ambient lighting conditions. Bright overhead light or direct sunlight can wash out readings entirely. Use it for broad colour categories like red, green, blue, and black rather than fine shade matching.

robotics builders, and educators use colour detection sensor for sorting machines, line-following robots, and colour-based game projects. Connect the 6 pins to your board and read analog values on four input pins. StemVolt provides this sensor with trusted quality, ensuring reliable performance and easy usability.

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Features:

• Operates at 3V to 5V DC supply allowing direct use with 3.3V and 5V boards
• Provides 4-bit analog output giving up to 16 signal combinations for colour identification
• Six-pin interface covers power, ground, and four output lines in a single connector
• Analog output type allows reading without special libraries on Arduino or ESP platforms

Technical Specifications:

Applications:

• A colour sorting project uses this to separate red green and blue objects on a belt
• A STEM classroom project reads surface colour and lights a matching LED in response
• A colour sensor module identifies coloured cards in a simple robotic card sorting game
• An analog colour sensor reads object colour on a conveyor and triggers a relay output

Package Includes:

• 1 x Colour Sensor Module