@sojohan You can use the ncappzoo version in the ncsdk2 branch of the appzoo, but you will have to do the Darkflow conversion on a PC in Ubuntu. Normally the appzoo tiny yolo v2 sample app clones the Darkflow github and does the conversion for you, but on the Pi Darkflow doesn't work. Here are the steps to do that:
make compile. You should see a graph file after this is complete.
There isn't but you can just modify the code to use a camera instead of the image. That's about the only change you need to do. Please see the live image classifier sample and use the camera code from this sample for your project.