Supported hardware

caelum runs on a Linux computer with a camera attached. What it needs from the camera is a backend that can set exposure and gain manually and hand back a frame; everything downstream — exposure control, storage, derivatives, upload — is the same whichever camera produced it.

There are two ways to get a camera running caelum:

	AMASC01	DIY camera
What it is	Finished outdoor allsky camera from AstroMeters	Your own build from off-the-shelf parts
Sensor	Sony IMX477, 180° fisheye	Anything with a supported backend
Backend	picamera2	picamera2 or opencv
Enclosure, heating, power	Included (heated dome, ventilation, PoE+)	Up to you
Support	Maintained and tested by AstroMeters	Community, best effort

Backends at a glance

Backend	Hardware	Status
picamera2	Raspberry Pi camera modules via libcamera (HQ camera / IMX477 and others)	Primary target; used on AMASC01
opencv	Any UVC/V4L2 webcam	For testing the pipeline; manual exposure support varies by driver
mock	None — synthetic frames	Development and CI

Details, configuration and caveats for each: Camera backends.