We detailed the development and evolution of a stability chamber that uses color change as a proxy for degradation, to create a semi-automated system to test perovskite performance under heat, illumination, and humidity. The specific aim was to generate machine-interpretable data in a highthroughput and low-cost manner. To achieve the target, we established color change as a proxy for structural perovskite degradation in thin films. It correlates with changes in device performance arising from perovskite degradation. We also established it as a valid proxy for structural change in bulk perovskite samples, confirmed by powder XRD. The first generation stability chamber was conceived at MIT, and developed into an open source platform that underwent further evolution at Haverford, Stanford, and MIT. At Haverford, the chamber was modified to work with small quantities of bulk crystals. At Stanford, the chamber was adapted to test full solar devices in a glove box. At MIT, the chamber was adapted with expanded dew point and spectral control.