The Grove - Light & Gesture & Color & proximity sensor is TMG39931 based product, which features advanced Gesture detection, Proximity detection, Digital Ambient Light Sense(ALS), Color Sense(RGBC), and optical pattern generation/transmission for broadcast. This four-in-one sensor allows you to collect the data from ambient environmet and ntransfers over the I2C bus.
Note
We've Released the Grove Selection Guide and hope to help you find the Grove suit you best.
Feature
Single device integrated optical solution
Ambient light sensing
UV and IR blocking filters
Complex gesture sensing
Ideal for operation behind dark glass - High sensitivity
Proximity detection
Barcode pattern generation and transmission
Dual use of a single internal LED
Trimmed to provide consistent reading
Typical applications
Gesture Detection
Color Sense
Ambient Light Sensing
Cell Phone Touch Screen Disable
Mechanical Switch Replacement
Printed Bar Code Emulation
Working Principle
Gesture Detection
Gesture detection utilizes four directional photodiodes to sense reflected IR energy (sourced by the integrated LED) to convert physical motion information to a digital information.
Proximity Detection
The proximity detection features provides object detection by photodiode detection of reflected IR energy(Sourced by the integrated LED).
Digital Ambient Light Sense & Color Sense
The Color and ALS detection feature provides red, green, blue and clear light intensity data. Each of the R, G, B, C channels have a UV and IR blocking filter and a dedicated data converter producing16-bit data simultaneously. This architecture allows applications to accurately measure ambient light and sense color which enables devices to calculate illuminance and color temperature, control display backlight, and chromaticity.
