The Sky Quality Meter (SQM) has been used in building an understanding on both dawn and Isha by other projects across the world.
A Malaysian study used the SQM to investigate the twilight for Isha prayer times. The resulting publication can be found on ResearchGate.
In 2019 the Islamic Science Research Network (ISRN) of Indonesia released their finding after using the SQM to determine dawn.
The following YouTube video describe the ISRN project:
Video 1 : Introduction and Project Parameters
Video 2: Comparison between the SQM and an all-night camera (as used by OpenFajr)
Video 3: Comparison between the SQM and an all-night camera - Continued
Video 4: Use of the SQM and the resulting new dawn times for Indonesia