RPR-0521RS-EVK-001 Evaluation Kit ROHM Semiconductor RPR-0521RS-EVK-001 Evaluation Kit is designed to assess the performance of the RPR-0521RS Proximity and Ambient Light Sensor. The ROHM Semiconductor RPR-0521RS Proximity and Ambient Light Sensor integrate an infrared LED, ambient light sensor, and proximity sensor into a single package, improving screen visibility while reducing set power consumption.