Digital Color Sensor with EFM Processor and Dual RS232 Interfaces

  • 1695

We currently have 5 in stock.


This module contains a Color Sensor based on the TCS3472 Digital Color Sensor. The device has 4 sets of photodiodes that sense the light level. One set does not have a filter so it senses unfiltered light. The other three sets are filtered to only let specific frequencies hit the photodiodes. One set measures red light, one green light, and the other blue light. All four sets have an IR blocking filter that only  allows visible light to pass. All four sets are measured simultaneously so color changes can be measured accurately.

The module also contains an EFM32ZG108 Gecko low power microcontroller and two RS232 serial ports allowing it to be daisy chained in a network. Pre-Programmed for use in an openHAB Home Automation system or can be Re-Programmed for other uses.


  • TAOS TCS3472 Color Light-to-Digital Converter
    • Red, Green, and Blue (RGB) and Clear Light sensing
    • Programmable Analog Gain and Integration time
    • Very High Sensitivity
    • Wide dynamic range
    • Photodiode array composed of red-filtered, green-filtered, blue-filtered, and clear (unfiltered) photodiodes
    • Photodiodes coated with an IR Blocking Filter
    • Four integrating ADCs convert light to a 16-bit value
    • Programmable threshold interrupt
  • +3.6V to +6V Input Voltage
  • Power management designed for very low standby power
  • Small Size: PCB is 20mm x 20mm (0.79" x 0.79")
  • EFM32ZG108 Gecko Microcontroller
    • ARM Cortex-M0+
    • Low Power Operation
    • 32KB Flash Memory
    • 4KB RAM
  • MAX3232 Dual RS232 Line Driver/Receiver
  • Two 4 Pin DF11 Right Angle Male Connectors each with Power and RS232
  • 6 Pin DF11 Right Angle Male Connector for Programming and Debug
  • Pre-Programmed with openHAB Item Firmware for Plug-and-Play
  • Pre-Programmed Firmware is Designed for Low Power Operation
  • May be Programmed with the Arduino IDE


  • Light Color Temperature Measurement
  • Ambient Light Sensing
  • Fluid and Gas Analysis
  • Product Color Verification and Sorting
  • Medical and Health Fitness
  • Solid State Lighting
  • Industrial Automation

Eagle Files
TCS3472 Digital Color Sensor Data Sheet


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