Sorry about the trouble here. These cameras arrived faster than we expected so we had not yet mainlined the OAK-D-Lite functionality.
We are in the process of releasing support for this today. So hopefully if you check out DepthAI tomorrow you will be able to use OAK-D-Lite directly.
If you are comfortable with git, in the meantime you can
git checkout oak-d-lite and then
python3 install_requirements.py and then your OAK-D-Lite will work as expected.
Sorry about the trouble.