sudo /opt/nvidia/jetson-io/jetson-io.py
- Configure 40-pin expansion header
- tick spi1 for pin 19 and spi2 for pin 13
- back
- reboot
pip install spidev
$ git clone https://github.com/siddharthcb/ros_led_nano.git
cd ~/src/
python led_strip_ros.py
Example script for publishing the topic is located in ~/examples
Install raspi-config from here.
sudo raspi-config and enable spi device, then reboot
sudo pip3 install spidev
make sure /etc/modules has spi-dev at the end of the file
make sure there is spi group exist by group command, if it shows spi, then skip to add ubuntu to the group
if there is no spi as group, then create group
sudo groupadd spi
sudo chmod g+rw /dev/spidev0.0
add ubuntu to spi group
sudo usermod -a -G spi ubuntu
make udev-rules to change owner of spi when boot up
sudo touch /etc/udev/rules.d/99-spi.rules
sudo gedit /etc/udev/rules.d/99-spi.rules
add this to the file
SUBSYSTEM=="spidev", MODE="0666"
sudo udevadm control --reload
reboot
clone the repo and run the node similar to Jetson Nano