Example notebooks for "Getting started with AI on Jetson Nano"

Autonomous Machines Jetson & Embedded Systems Jetson Nano
#1

Hi!

I’ve just enrolled myself into the course and I’d like to follow the examples mentioned (e.g. classification_interactive.ipynb, usb_camera.ipynb, etc.). As I have already a Jetson Nano, which is set up with the Jetson Nano Developer Kit SD Card Image instead of the DLI Jetson Nano SD Card Image, I do not have them. Is it possible to download only the examples of the course? I’m not so much in favor of either reseting my Nano or using a second SD card and copy over the files…I am aware that I have to install the necessary components by myself.

#2

Hi svenw, the SD card image from the DLI course is the installation method of the notebooks, as there are a number of required dependencies that come pre-installed which aren’t included in the base image and that aren’t trivial to install standalone.

If you don’t wish to use a separate image, you could check out the updates to Hello AI World, which can be installed on top:
https://devtalk.nvidia.com/default/topic/1057006/jetson-nano/hello-ai-world-now-supports-python-and-onboard-training-with-pytorch-/

#3

Great, I’ll have a look at the examples. Thanks a lot!

#4

I am using the “SparkFun JetBot AI Kit Powered by NVIDIA Jetson Nano” (https://www.sparkfun.com/products/15365) which comes with a pre-flashed MicroSD card. For my case, adding the example code and missing dependencies is more instructive. One option is to download the Deep Learning Institute (DLI) Jetson Nano SD Card Image that is linked to from the course. Then unzip it and mount the .img file:

jetbot@jetbot:~/Downloads$ sudo mount -o loop,offset=12582912 dlinano_v1-0-0_image_20GB.img ~/Downloads/img/

Note that the mount point must exist, an empty ~/Downloads/img directory in my case. I used parted to find the offset value within the .img file. The example code is only 1.1 MB and can be found in the nvdli-nano sub-directory of the .img’s /home/dlinano.

I did have to clone and install JetCam (https://github.com/NVIDIA-AI-IOT/jetcam). With JetCam in place, at least the camera notebook works without any problems. However, I have not yet worked through the remainder of the course.

#5

Kind of ridiculous that we have to jump through these kinds of hoops as beginners to get the correct notebooks in order to work through the NVidia AI course. The courses look useful at first glance, but the documentation desires much to be considered an efficient way to get up and running in these technologies.
It’s taken me a few days and flashing a few different SD images to finally get at these notebooks which are referenced in this course.
https://courses.nvidia.com/courses/course-v1:DLI+C-RX-02+V1/courseware/b2e02e999d9247eb8e33e893ca052206/26aa9f8bdaa948d9b068a8275c89e546/?child=first

#6

This tech is going to be obsolete by the time I can get a decent copy flashed to an SD card.

1 Like
#7

I agree with what onlinexdjw1 says. I followed a couple of YouTube’rs like jetsonhacks and Paul McWhorter (TopTechBoy) so I could get the nano up and running. I was able to get my headless setup and then remote Jupyter Lab.

Then I went to the getting started course and found that I should have flashed the dlinano image which means that all the configs I setup on my 128G sdcard might need to be scrapped.

Having two sdcard images seems dumb. There is no simple post or article explaining what the difference between the two images are. Jetpack, dlinano etc. That would help us decide which to use. I don’t want two. That will complicate things.

So why does jetpack not include the courseware and an integrated set of dependencies so I could at least run the starting notebooks? A single image that everyone can get going with?

There is a tower of babel of threads and posts all over this forum and stackoverflow that makes this seem really knotted up as a developer learning path.

Nvidia: How about saving data science people some heartache and get all of this ported to Anaconda? That would save us a lot of wasted time and effort.

#8

@nvidia: it would be nice if the dlinano files/packages were included in the online apt repo. It would alleviate many problems related to locale, SD card size, password confusion, and security.

#9

Update:

I installed Dusty_nv’s inference package and it has a lot of good stuff to get going with object-rec and other DL stuff.
By the way, the inference install works flawlessly and everything sets up correctly. You can run all the Python demos on the command line with no problems.

Now, I boot only the distribution sd-card image even after I made a separate dlinano image.
I have run through all the dlinano image stuff already.

Where can I find the dlinano jupyter notebook sources?
I want to replicate those on my standard distribution.

Great stuff, Dustin.

Thanks!