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https://github.com/AG7GN/nexus-utilities.git
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41 lines
1.3 KiB
Bash
Executable File
41 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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VERSION="1.0.1"
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# This script checks the status of 4 GPIO pins and runs a script corresponding
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# to those settings as described below. This script is called by initialize-pi.sh,
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# which is run a bootup via cron @reboot.
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GPIO="$(command -v gpio) -g"
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# Array P: Array index is the ID of each individual switch in the piano switch.
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# Array element value is the GPIO BCM number.
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P[1]=25
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P[2]=13
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P[3]=6
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P[4]=5
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# String $PIANO will identify which levers are in the DOWN position
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PIANO=""
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for I in 1 2 3 4
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do
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J=$($GPIO read ${P[$I]}) # State of a switch in the piano (0 or 1)
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(( $J == 0 )) && PIANO="$PIANO$I"
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done
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# Check if the script corresponding to the piano switch setting exists and is not empty.
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#
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# Scripts must be in the $HOME directory, be marked as executable, and be named
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# pianoX.sh where X is one of these:
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# 1,12,13,14,123,124,134,1234,2,23,234,24,3,34,4
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#
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# Example: When the piano switch levers 2 and 4 are down, the script named
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# $HOME/piano24.sh will run whenever the Raspberry Pi starts.
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[[ $PIANO == "" ]] && MESSAGE="No levers are down." || MESSAGE="Levers $PIANO are down."
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yad --center --title="Test calling pianoX.sh script - version $VERSION" --info --borders=30 \
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--no-wrap --text="<b>$MESSAGE $HOME/piano$PIANO.sh will run.</b>" --buttons-layout=center \
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--button=Close:0
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