add note about spi group #18
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@ -49,9 +49,11 @@
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# apt-get install libopenjp2-7
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# apt-get install libopenjp2-7
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#
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#
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#
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#
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# user needs to be in the gpio group
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# user needs to be in the gpio and spi groups
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# $ ls -l /dev/gpiomem
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# $ ls -l /dev/gpiomem
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# crw-rw---- 1 root gpio 246, 0 Sep 15 12:49 /dev/gpiomem
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# crw-rw---- 1 root gpio 246, 0 Sep 15 12:49 /dev/gpiomem
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# ls -l /dev/spidev0.0
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# crw-rw---- 1 root spi 153, 0 Sep 15 13:09 /dev/spidev0.0
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import argparse
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import argparse
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from datetime import datetime, timedelta, timezone
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from datetime import datetime, timedelta, timezone
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