#
# Display the measured temperature and the humidity of Oregon sensors.
#
# FileLog definition: 
# define <filelogname> FileLog /var/log/fhem/<devname>-%Y.log <devname>
# Filelog example:
# define FileLog_THR128_08 FileLog /var/log/fhem/THR128_08-%Y.log THR128_08
#
# Logfile record example:
#2010-08-10_17:59:46 THGR810_b1 temperature: 21.6
#2010-08-10_17:59:46 THGR810_b1 humidity: 66


# Attribute 'small' is useful for gnuplot/-scroll only,
# if plotsize is less than 800,400
#set terminal png transparent small size <SIZE> crop

set terminal png transparent size <SIZE> crop

set output '<OUT>.png'
set xdata time
set timefmt "%Y-%m-%d_%H:%M:%S"
set xlabel " "
set ytics nomirror
set y2tics
#set ytics
set title '<L1>'
set grid xtics y2tics

set y2label "Temperature in C"
set ylabel "Humidity (%)"

#FileLog 4:temperature:0:
#FileLog 4:humidity:0:

plot \
  "< awk $3=="temperature:" {print $1, $4}' <IN>"\
     using 1:2 axes x1y2 title 'Measured temperature' with lines lw 2,\
  "< awk $3=="humidity:" {print $1, $4}' <IN>"\
     using 1:2 axes x1y1 title 'Humidity (%)' with lines lw 1\