Hi @fratanto, sorry for the delay - after you export your model to ONNX, you can load it into detectnet/detectnet.py either via command-line or this is what the code would look like:
net = jetson.inference.detectNet(argv=[`--model=model_dir/ssd-mobilenet.onnx`, `--labels=model_dir/labels.txt`, `--input-blob=input_0`, `--output-cvg=scores`, `--output-bbox=boxes`])