The Keyestudio TCS3200 Color Recognition Sensor uses a programmable colour light-to-frequency converter for accurate color measurement. Based on the principle of primary colours, it selectively filters red, green, or blue light, allowing only the chosen colour to pass while blocking the others. This enables precise measurement of each colour’s intensity, making it suitable for applications such as colorimetry and various industrial color detection tasks.
Specification
- Chip: TCS230
- Input voltage: DC 3 ~ 5V
- Output frequency voltage: 0 ~ 5V
- Use high brightness white LEDs
- Can be connected directly to Microcontroller
- Static detection of the measured object color
- Best detection distance: 10mm
Connection Diagram

There are in total 10 pins on this sensor. The following is the correct connection between this color sensor and Arduino UNO:
