hardware bug found, sorry

plot.sh

@@ -7,10 +7,12 @@ DATAFILE="serial/foo.dat"
 IMAGE="graphe.png"
 TMPFILE="/dev/shm/tmpdata"
 
-tail -10000 < ${DATAFILE} > ${TMPFILE}
+wc -l ${DATAFILE}
+
+tail -2500 < ${DATAFILE} > ${TMPFILE}
 
 gnuplot << __EOC__
-set term png 	size 1650,700
+set term png 	size 1600,800
 set output 	"${IMAGE}"
 set ytics	2
 set xtics	
@@ -24,6 +26,6 @@ plot	"${TMPFILE}" using 1:3 title " inside" with lines, \
 	"${TMPFILE}" using 1:4 title "ambient" with lines
 __EOC__
 
-display ${IMAGE}
+display ${IMAGE} &