π¨ TCS230/TCS3200 Color Sensor Module
Description
The TCS230/TCS3200 is a high-performance color light-to-frequency converter that can detect the intensity of red, green, blue, and clear light and convert it into a frequency output. Essentially, it βseesβ colors and tells your microcontroller what it sees using square wave signals.
It contains a 64-photodiode array, with each photodiode filtered for either red, green, blue, or clear light. The sensorβs output is a square wave frequency proportional to the detected light intensity. By sequentially reading the frequency for each color, you can reconstruct the RGB color composition of an object or light source.
This module is widely used in robotics, color sorting machines, line-following robots, ambient light sensing, and DIY electronics projects.
Features
Detects Red, Green, Blue, and Clear (unfiltered) light.
Converts light intensity to frequency output.
Programmable output frequency scaling: 100%, 20%, 2%, or off.
Works with 3.3Vβ5V logic.
High-speed sensing: suitable for dynamic color detection.
Compact module for easy integration with Arduino, Raspberry Pi, and other microcontrollers.
Can be used for color sorting, object recognition, or ambient light detection.
Pin Configuration
The module typically has 8 pins:
VCC β Power supply (3.3Vβ5V)
GND β Ground
OUT β Frequency output (square wave)
S0 & S1 β Output frequency scaling (digital input: 100%, 20%, 2%, off)
S2 & S3 β Photodiode type selection (Red, Green, Blue, or Clear)
OE β Output enable (active low)
Operating Principle
Light from an object falls on the photodiode array.
Photodiodes filtered for red, green, blue, or clear light respond to the intensity of their respective colors.
The sensor converts this intensity into a square wave frequency output.
By measuring the frequency for each color filter, a microcontroller can compute the color composition.
The output frequency scaling (S0/S1 pins) allows you to adjust sensitivity or reduce the frequency for easier measurement.
π― Full Specifications (Creative Bulleted Form)
β‘ Power & Current
Supply Voltage: 3.3V β 5V
Typical Operating Current: 5 mA
πΆ Output
Type: Square wave
Frequency β light intensity
Frequency scaling: 100%, 20%, 2%
π¬ Photodiode Array
Total: 64 photodiodes
Color breakdown: 16 Red, 16 Green, 16 Blue, 16 Clear
Detection wavelengths:
Red: 620β750 nm
Green: 520β560 nm
Blue: 430β470 nm
β±οΈ Performance
Response time: ~100 ΞΌs
Operating temperature: -40Β°C to +85Β°C
ποΈ Connectivity
Pins: VCC, GND, OUT, S0, S1, S2, S3, OE
Control of photodiode selection and output frequency scaling
π― Applications
Color sorting machines
Line-following robots with color detection
Ambient light and display color sensing
Color identification for quality control
DIY electronics and microcontroller projects