[arm-allstar] Shari Node Fan Control? Take #2, bugfix

[David McGough]

Someone just pointed out that on some RPi boards, the temperature reported 
from the vcgencmd command needs to be converted to an integer or the bash 
script tests fail....So, for example, if the reported temp is: 44.4, it 
needs to be converted to 44.  I updated the script, below, to fix this.

73, David KB4FXC


###################################################################################
#!/bin/bash
#
#       Simple CPU temp monitor script.  KB4FXC 2021-05-31
#

hi=60
lo=50
fanstate=unknown

function fan_on
{
        echo "fan on"
}

function fan_off
{
        echo "fan off"
}

while true ; do

        temp=$(/opt/vc/bin/vcgencmd measure_temp | awk -F= '{j=$2 - 0; print int(j)}')

        [ $temp -ge $hi ] && fanneeded=on
        [ $temp -le $lo ] && fanneeded=off
        if [ "$fanstate" != "$fanneeded" ] ; then
                [ "$fanneeded" = "on" ] && fan_on
                [ "$fanneeded" = "off" ] && fan_off
                fanstate=$fanneeded
        fi
        sleep 5
done
###################################################################################