Here is the plugin just to be complete.
-------------------------check_watchptTemp_linux.pl-------------------------------------------------------
#!/usr/bin/perl -w
# check_watchptTemp_linux.pl
# Copyright 2010,2011 Julius Schlosburg
#
# This script gets the temperature from a Digi Watchport Temperature Sensor.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <
http://www.gnu.org/licenses/>.
use strict;
no warnings; # I added this statement to supress output errors
use Device::SerialPort;
use Getopt::Long;
my $argw;
my $argc;
my $argp;
my $argh = 0;
#get limited options set
GetOptions(
"w=i" => \$argw,
"c=i" => \$argc,
"p=s" => \$argp,
"h|help" => \$argh
);
my $exitcode = 3;
my $warning = $argw;
my $critical = $argc;
my $port = $argp;
if ($port eq ""){
$port = "/dev/ttyUSB0";
}
if ($warning == "" || $critical == "" || $argh){
print "Usage: \n /usr/bin/perl check_watchptTemp_linux.pl -w <warning temp> -c <critical temp> [-p <port(default /dev/ttyUSB0)>]\n\n";
exit;
}
my $state = 2;
#get temp
my $temp = getTemp();
if ($temp > $warning){
$state++;
}
elsif ($temp < $warning){
$state--;
}
if ($temp > $critical){
$state++;
}
elsif ($temp < $critical){
$state--;
}
if ($state eq 0){
print "OK: Temp is good at $temp";
$exitcode = '0';
}
elsif ($state < 3){
print "WARNING: Temp is at $temp";
$exitcode = '1';
}
elsif ($state eq 4){
print "CRITICAL: Temp is at $temp";
$exitcode = '2';
}
#Performance data:
print "|temp=$temp;$warning;$critical;0;100\n";
exit $exitcode;
#######################SUBS################################################
sub getTemp{
#Create Serial port object
my $ob = Device::SerialPort->new ($port) or die "CRITICAL, can't open serial port! $!";
$ob->baudrate(9600);
$ob->parity('none');
$ob->databits(8);
$ob->stopbits(1);
$ob->handshake('none');
$ob->stty_inlcr;
$ob->write_settings || undef $ob;
# Send TF command to watchport... tells device to return temp in F
$ob->write("TF\r");
$ob->read_char_time(5);
my ($count, $tempRead) = $ob->read(255);
if ($tempRead =~ /.*?([\d]+.[\d]+)/){
$tempRead = $1;
}
$ob->close;
undef $ob;
return $tempRead;
}
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