[HOW-TO] Set auto white balance mode with camera controls

Describe what it is that you want to accomplish Set auto white balance mode

Describe alternatives you’ve considered N/A

Additional context I’ve dug through the code, but neither _VIRTUAL_FIELDS_MAP_ in controls.py or camera_ctrl_info in picamera2.py has illuminated this information for me. It is implied that this would be controlled via the camera controls interface on page 21 of the documentation (along with exposure, sharpness, etc), but I cannot figure out how to actually use this.

I understand this library is incomplete so if this is simply not implemented yet just let me know

Really, I’d like to know where I can find a list of things I can mess with using the controls. Thanks

[flatsiedatsie]

Thanks. I’m trying to switch between ‘normal’ and ‘night mode’ on the fly. With PiCamera I could use:

self.picam.exposure_mode = "auto"
self.picam.image_effect = "none"
self.picam.exposure_compensation = 0
self.picam.ISO = 0
self.picam.brightness = 50
self.picam.contrast = 0

and

self.picam.exposure_mode = "night"
self.picam.image_effect = "denoise"
self.picam.exposure_compensation = 25
self.picam.ISO = 800
self.picam.brightness = 70
self.picam.contrast = 50

With PiCamera2 I was trying self.picam.set_controls({"ExposureTime": 100000, "AnalogueGain": 1}). I’ll see if I can get close to what I had.

[CorvetteCole]

you might need to turn off auto exposure for the exposuretime to work. just a thought