The ColorPAL is a miniature color and light sensor which, through its RGB LED, doubles as a color generator.
For sensing color, the ColorPAL uses its LED to illuminate a sample, one color component at a time, along with a broad-spectrum light-to-voltage converter to measure the light reflected back. The amount of light reflected from the sample under illumination from each red, green, and blue LED can be used to determine the sample’s color. The ColorPAL works with non-fluorescent reflective surfaces, preferably those in contact with its light shroud.
ColorPAL Features:
- Detects a full range of colors, and outputs data as RGB (Red/Green/Blue) components
- Supported by BlocklyProp blocks and Propeller C libraries, as well as BASIC Stamp and Arduino code
- Detects broad-spectrum ambient light with sensitivity down to 44µW/cm2 per lsb
- Generates 24-bit color using the onboard RGB LED
- Plugs into 3-pin headers (with optional cable) or wireless breadboards
- Single-pin interface uses a simple serial protocol to define and initiate color detection and generation
- Color sensor IC: Rohm BH1680FVC
- Onboard microcontroller: ATTiny13A
- Total RGB response time: 62 ms
- Onboard EEPROM for saving custom color detection and generation programs
- Autorun feature permits running a pre-designated EEPROM program with only a power supply
- Generates 24-bit color using onboard RGB LED
- Power requirements: 5.0 VDC
- Communication: Asynchronous serial, open drain
- Dimensions: 1.72 x 0.90 x 0.65 in (44 x 23 x 17 mm)
Note: ColorPAL Rev B began shipping in December 2021. See the ColorPAL Rev B Guide in the documentation archives for a specification comparison with Rev A and complete product details.
