Nvidia Jetson Nano

• interesting projects

jtop

sudo -H pip install -U jetson-stats

check CUDA

cd /usr/local/cuda-10.0/samples/1_Utilities/deviceQuery
sudo make
./deviceQuery

cd /usr/local/cuda-10.0/samples/1_Utilities/bandwidthTest/
sudo make
./bandwidthTest

Device 0: "NVIDIA Tegra X1"
  CUDA Driver Version / Runtime Version          10.0 / 10.0
  CUDA Capability Major/Minor version number:    5.3
  Total amount of global memory:                 3957 MBytes (4148756480 bytes)
  ( 1) Multiprocessors, (128) CUDA Cores/MP:     128 CUDA Cores
  GPU Max Clock rate:                            922 MHz (0.92 GHz)

sudo apt install libssl-dev zlib1g-dev libncurses5-dev libncursesw5-dev libreadline-dev libsqlite3-dev
sudo apt install libgdbm-dev libdb5.3-dev libbz2-dev libexpat1-dev liblzma-dev libffi-dev uuid-dev

wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0b3.tgz
tar zxvf Python-3.8.0b3.tgz
cd Python-3.8.0b3
make -j3
sudo make install

• http://docs.donkeycar.com/guide/robot_sbc/setup_jetson_nano/
• https://devtalk.nvidia.com/default/topic/1056594/jetson-nano-opencv-4-1-0/?offset=9

apt remove -y libopencv libopencv-dev libopencv-python libopencv-samples
apt install -y python3.7-dev python3.7-venv curl
apt install -y libv4l-dev v4l-utils qv4l2 v4l2ucp
apt install -y build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
apt install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev

python 3.7

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python3.7 get-pip.py
pip3.7 install -U wheel
pip3.7 install -I numpy
pip3.7 install Cython

add swap to compile opencv

fallocate -l 6G /mnt/6GB.swap
mkswap /mnt/6GB.swap
swapon /mnt/6GB.swap
swapon -s

RELEASE=4.1.1
cd ~/
curl -L https://github.com/opencv/opencv/archive/${RELEASE}.zip -o opencv-${RELEASE}.zip
curl -L https://github.com/opencv/opencv_contrib/archive/${RELEASE}.zip -o opencv_contrib-${RELEASE}.zip
unzip opencv-${RELEASE}.zip
unzip opencv_contrib-${RELEASE}.zip
cd opencv-${RELEASE}/
mkdir release
cd release/
cmake -D WITH_CUDA=ON -D CUDA_ARCH_BIN="5.3" -D CUDA_ARCH_PTX="" -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-${RELEASE}/modules -D WITH_GSTREAMER=ON -D WITH_LIBV4L=ON -D BUILD_opencv_python2=OFF -D BUILD_opencv_python3=ON -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D BUILD_EXAMPLES=OFF -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D PYTHON_EXECUTABLE=/usr/bin/python3.7 -D PYTHON_DEFAULT_EXECUTABLE=/usr/bin/python3.7 -D BUILD_DOCS=OFF -DENABLE_PRECOMPILED_HEADERS=OFF ..
make -j3

install

sudo make install/strip
sudo ldconfig

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cp /usr/local/lib/python3.7/site-packages/cv2/python-3.7/cv2.cpython-37m-aarch64-linux-gnu.so lib/lib/python3.7/site-packages/