first commit

plugins/ina219

@@ -0,0 +1,70 @@
+#!/bin/sh
+# -*- sh -*-
+
+: << =cut
+
+=head1 NAME
+
+ina219 - Plugin to measure power consumption.
+
+=head1 NOTES
+
+=head1 AUTHOR
+
+Contributed by Florian Klemenz
+
+=head1 LICENSE
+
+GPLv2
+
+=head1 MAGIC MARKERS
+
+ #%# family=auto
+ #%# capabilities=autoconf
+
+=cut
+
+. $MUNIN_LIBDIR/plugins/plugin.sh
+
+if [ "$1" = "autoconf" ]; then
+        echo yes
+        exit 0
+fi
+
+if [ "$1" = "config" ]; then
+
+        echo 'graph_title Power'
+        echo 'graph_args --base 1 -l 0 '
+        echo 'graph_scale no'
+        echo 'graph_vlabel mW'
+        echo 'graph_category power'
+        echo 'power.label power'
+        echo 'power.draw LINE'
+        print_warning power
+        print_critical power
+        exit 0
+fi
+
+ROUNDS=5
+
+VOLTAGE=0
+CURRENT=0
+POWER=0
+
+for i in $(seq ${ROUNDS}); do
+    RESULT=$(/usr/bin/ina219)
+
+    VOLTAGE_RAW=$(echo $RESULT | /bin/sed 's/\([0-9]\+\)mV \+\([0-9\.]\+\)mA/\1/')
+    VOLTAGE=$(echo "scale=3; $VOLTAGE+$VOLTAGE_RAW" | /usr/bin/bc)
+
+    CURRENT_RAW=$(echo $RESULT | /bin/sed 's/\([0-9]\+\)mV \+\([0-9\.]\+\)mA/\2/')
+    CURRENT=$(echo "scale=3; $CURRENT+$CURRENT_RAW" | /usr/bin/bc)
+
+done
+    
+VOLTAGE=$(echo "scale=3; $VOLTAGE/$ROUNDS" | /usr/bin/bc)
+CURRENT=$(echo "scale=3; $CURRENT/$ROUNDS" | /usr/bin/bc)
+POWER=$(echo "scale=3; $VOLTAGE*$CURRENT/1000000" | /usr/bin/bc)
+
+
+echo "power.value $POWER"