Spectrometer 2 Click as its foundation uses the VD6283TX, a color sensor with advanced light flicker extraction from STMicroelectronics. It performs fast and accurate light measurements thanks to an individual ADC with a resolution of 24 bits (16 bit + 8 bit for high accuracy under low light) and a readout for six color channels: red, green, blue, IR, clear, and visible. The color channels can be individually enabled to optimize power consumption, alongside 15 programmable gains for a high-dynamic range, through a serial interface. Six channels can operate with independent, parallel reading for ALS or flicker operations, one represents a dedicated fast channel for light flicker measurement, and one stands for an internal dark channel.
The VD6283TX uses hybrid color filters with precise responses allowing accurate computation of the correlated color temperature (CCT) and Lux information. Its patented architecture and a high-performance photodiode design can also extract light-flickering frequencies from a minimum of 100Hz and a maximum frequency of 2kHz, including LED square signals, to avoid “banding effects” or check that they are safe for the human eye.
Spectrometer 2 Click communicates with MCU using the standard I2C 2-Wire interface with a maximum clock frequency of 1MHz, fully adjustable through software registers. The VD6283TX does not require a specific Power-Up sequence but requires a voltage of 1.8V for its interface and logic part to work correctly. Therefore, a small regulating LDO is used, the ADP151, providing a 1.8V out of 3.3V mikroBUS™ power rail. Since the sensor for operation requires a power supply of 1.8V, this Click board™ also features the PCA9306 voltage-level translator allowing the VD6283TX to work with 3.3V MCU properly.
This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development.
Applications: Can be used for screen brightness adjustment and white balance color assistance, lux and CCT measurement, or light frequency extraction for flicker correction assistance
Specifications and Features:
- Type: Optical Sensor
- Low power consumption
- Interface: Analog, I2C
- Compatibility: mikroBUS
- Click board size: 28.6 x 25.4 mm
- Input Voltage: 3.3V
- Parallel sensing of all six channels
- On-board modules VD6283TX – hybrid filter multispectral sensor with light flicker engine from STMicroelectronics
- Advanced hybrid filters with high photocount response
- Innovative readout architecture to extract AC light flicker signal, from 100Hz to 2kHz frequency detection – sine or square wave
- Spectrometer 2 click example on Libstock
- Spectrometer 2 click 2D and 3D files
- Spectrometer 2 click schematic
- VD6283TX datasheet.
1 x Mikroe SPECTROMETER 2 CLICK
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