The TCS230 senses colour light with the help of an 8 x 8 array of photodiodes.

Then using a Current-to-Frequency Converter the readings from the photodiodes are converted into a square wave with a frequency directly proportional to the light intensity. Finally, using the Arduino Board we can read the square wave output and get the results for the colour.

Features

• high resolution conversion of light intensity to frequency
• programmable colour and full scale output frequency
• communicates directly with a microcontroller
• single supply operation (2.7 V to 5.5 V)
• power down feature
• non-linearity error typically 0.2% at 50 kHz
• stable 200 ppm/°C temperature coefficient

Specifications

• S0-S1: output frequency scaling selection inputs
• S2-S3: photodiode type selection inputs
• out pin: output frequency
• OE pin: output frequency enable pin (active low), can be impending when using

Manual

• User manual

Info Sheets

• TCS3200/TCS3210 Data Sheet
• Infosheet

Firmware

• Code
• LiquidCrystal I2C
• TimerOne R11