ledcat
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Can’t get more than 1 LED light activating on a 144 LED SK9822 strip
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Not sure if this project is still being worked on, but the title is self explanatory. I’ve tried various commands below and I can only get the 1st LED to change color.
perl -e 'print "\xff\x00\x00" x 30' | ledcat --geometry 9 sk9822 > /dev/spidev0.1
perl -e 'print "\xff\x00\x00" x 30' | ledcat --geometry 144 sk9822 > /dev/spidev0.1