These large, reportedly unheated tanzanites possess fine color. Photos by Eric Welch; courtesy of Advanced Quality. At the GJX show, Kobe Sevdermish (Advanced Quality, Ramat Gan, Israel) displayed ...

This library is partially ported from this circuitpython library. Integration time for RGBC measurement can be set in millisecond. The parameter range is from 2.4ms to 614.4ms.