Just joined the forum. I'm an experienced visual astronomer and now retired I'm exploring using CCD's to help.

I like raspberry Pi's and have used them quite a bit, but wouldnt consider myself a capable user/programmer.
first project was an all sky camera. A QHY CCD connected to the a remote RPi4 running IndigoSky. Worked out nicely in the end although the QHY 5L is a temperamental beast.

Now I'm trying to make an electronic finder for my Dobsonian.

The RPi HQ Camera looked interesting and I believe others have managed to get sufficient sensitivity to capture stars and plate solve the image.

First step I thought would be to use Astroberry/Kstars/Indi to test the setup and prove the concept. The I would attempt to write a more dedicated programme to do the capture/plate solving/scope drive.

Steep learning curve but I'm getting there.

problem I've hit is exposure & gain control. it seems not to change. I've read this thread and tried various things but to no avail.

When I start Ekos from Kstars, I get an Indi control panel pop up. On the tabs I can set exposure time and gain. I then go to the 'capture' tab in Ekos. Again I am presented with options to change exposure and gain. But they dont reflect what I may have set on the Indi control panel.
I've tried various combos of changing gain and exposure in various orders, but the resulting image always appears the same. The activity monitor script at the bottom of the window suggest the right length exposures are being taken, but the displayed images never change.

Any help greatly appreciated. (please remember I'm not a programmer!)