The RPR-0720-EVK is an evaluation board for the RPR-0720 infrared (IR) proximity sensor module.
The ROHM RPR-0720 is an integrated IR proximity sensor module which combines an emitter and receiver in a single small package.
The RPR-0720’s emitter is an IR vertical-cavity surface-emitting laser. The chip’s built-in IR receiver detects the approach of a person or other object by measuring the rate of reflection of IR light emitted by the VCSEL, over a range between 1 mm and 15 mm. The proximity sensing range is controllable by the system designer via its I2C interface.