Hello!
I am using a DLP4500 module without its LEDs, to project some patterns with a laser beam.
So far I was using the pattern mode with the GUI interface, connecting the module via the USB port. This allowed me to choose the exposure time of each pattern.
Now I am trying to control the DLP via MATLAB connecting it as a second screen via the HDMI connector. I am able to send the patterns, but I think the micro-mirrors are continuously oscillating between the parked position and the pattern one, because I hear a buzzing noise, that I didn't hear with the other mode (my guess is that being the DMD used as a second screen this may cause it to be refreshed at the refresh rate of a normal screen, but I do not know if this is the case). By the way, I'd need the mirrors to be stable in the pattern position, because I am using a pulsed laser. So the question is basically if there is a way to set the exposure time of the patterns, when I am operating in video mode via HDMI.
I am pretty new to this technology so I hope I made myself clear, in case you need more details let me know.
Thank you!
Regards,
Luca