diff --git a/.gitignore b/.gitignore
index 22b80c9dc3..b40917524e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,6 +47,7 @@
 /conf/%gconf.xml
 /conf/srtm_data/*
 /conf/maps_data/*
+/conf/gps/ublox_conf
 
 # /doc/pprz_algebra/
 /doc/pprz_algebra/headfile.log
@@ -99,6 +100,7 @@
 /sw/logalizer/plotter
 /sw/logalizer/gtk_export.ml
 /sw/logalizer/sd2log
+/sw/logalizer/plotprofile
 
 # /sw/simulator/
 /sw/simulator/gaia
diff --git a/sw/logalizer/Makefile b/sw/logalizer/Makefile
index 4768fac813..01dd11580b 100644
--- a/sw/logalizer/Makefile
+++ b/sw/logalizer/Makefile
@@ -27,7 +27,7 @@ OCAMLC = ocamlc
 OCAMLOPT = ocamlopt
 INCLUDES= $(shell ocamlfind query -r -i-format xml-light) $(shell ocamlfind query -r -i-format lablgtk2) -I ../lib/ocaml 
 
-all: play plotter plot sd2log
+all: play plotter plot sd2log plotprofile
 
 play : log_file.cmo play_core.cmo play.cmo
 	@echo OL $@
@@ -105,6 +105,9 @@ MORE_CFLAGS = -DHAVE_DLFCN_H=1 -DSTDC_HEADERS=1  -I. -I.  -I..    -g -O2 -I/usr/
 disp3d: disp3d.c
 	$(CC) $(MORE_CFLAGS) -g -o $@ $^ $(MORE_FLAGS)
 
+plotprofile: plotprofile.c
+	gcc -g -O2 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs`  `pcre-config --libs` -lglibivy
+
 test1: test1.c
 	$(CC) $(MORE_CFLAGS) -g -o $@ $^ $(MORE_FLAGS) -lglut
 
diff --git a/sw/logalizer/plotprofile.c b/sw/logalizer/plotprofile.c
new file mode 100644
index 0000000000..39f0cdcf2a
--- /dev/null
+++ b/sw/logalizer/plotprofile.c
@@ -0,0 +1,138 @@
+
+/*
+
+http://users.softlab.ntua.gr/~ttsiod/gnuplotStreaming.html
+
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <math.h>
+#include <inttypes.h>
+#include <sys/time.h>
+#include <glib.h>
+#include <Ivy/ivy.h>
+#include <Ivy/ivyglibloop.h>
+
+#define HEIGHT_SPAN 20000
+
+FILE *Gplt, *Gplh;
+int32_t alt = 0;
+int32_t temp[HEIGHT_SPAN] = {0};
+int32_t humid[HEIGHT_SPAN] = {0};
+
+void on_GPS(IvyClientPtr app, void *user_data, int argc, char *argv[]){
+/*
+   <message name="GPS" id="8">
+     <field name="mode"       type="uint8"  unit="byte_mask"/>
+     <field name="utm_east"   type="int32"  unit="cm" alt_unit="m"/>
+     <field name="utm_north"  type="int32"  unit="cm" alt_unit="m"/>
+     <field name="course"     type="int16"  unit="decideg" alt_unit="deg"/>
+     <field name="alt"        type="int32"  unit="cm" alt_unit="m"/>
+     <field name="speed"      type="uint16" unit="cm/s" alt_unit="m/s"/>
+     <field name="climb"      type="int16"  unit="cm/s" alt_unit="m/s"/>
+     <field name="week"       type="uint16" unit="weeks"></field>
+     <field name="itow"       type="uint32" unit="ms"/>
+     <field name="utm_zone"   type="uint8"/>
+     <field name="gps_nb_err" type="uint8"/>
+   </message>
+
+7.73 11 GPS 0 55577549 665183336 0 -4310 0 0 1642 345957748 31 0
+*/
+	
+  int32_t _alt;
+
+  _alt = atoi(argv[5]);
+  alt = _alt / 100;
+//  if ((_alt/100) < HEIGHT_SPAN) alt = _alt;
+
+//  printf("alt %f\n", (float) _alt/100.);
+}
+
+void on_TMP_STATUS(IvyClientPtr app, void *user_data, int argc, char *argv[]){
+/*
+  <message name="TMP_STATUS" id="86">
+    <field name="itemp"  type="uint16"/>
+    <field name="temp"   type="float" unit="deg_celsius" format="%.2f"/>
+  </message>
+*/
+	
+  float _temp;
+  int i;
+  
+  _temp = atof(argv[2]);
+  if (alt < HEIGHT_SPAN) temp[alt] = _temp * 100;
+  
+//  printf("temp %f\n", _temp);
+  fprintf(Gplt, "plot '-' w points pt 0 title \"Temp\"\n");
+  for (i = 0; i < HEIGHT_SPAN; i++){
+    if (temp[i] != 0) fprintf(Gplt, "%f %d\n", temp[i]/100., i);
+  }
+  fprintf(Gplt,"e\n");
+}
+
+void on_SHT_STATUS(IvyClientPtr app, void *user_data, int argc, char *argv[]){
+/*
+  <message name="SHT_STATUS" id="89">
+    <field name="ihumid" type="uint16"/>
+    <field name="itemp"  type="uint16"/>
+    <field name="humid"  type="float" unit="rel_hum" format="%.2f"/>
+    <field name="temp"   type="float" unit="deg_celsius" format="%.2f"/>
+  </message>
+*/
+	
+  float _humid;
+  int i;
+  
+  _humid = atof(argv[3]);
+  if (alt < HEIGHT_SPAN) humid[alt] = _humid * 100;  
+
+//  printf("humid %f\n", _humid);
+  fprintf(Gplh, "plot '-' w points pt 0 title \"Humid\"\n");
+  for (i = 0; i < HEIGHT_SPAN; i++){
+    if (humid[i] != 0) fprintf(Gplh, "%f %d\n", humid[i]/100., i);
+  }
+  fprintf(Gplh,"e\n");
+}
+
+int main( int argc, char* argv[] )
+{
+  double xmint, xmaxt, xminh, xmaxh, ymin, ymax;
+  GMainLoop *ml;
+  
+  ml =  g_main_loop_new(NULL, FALSE);
+
+  IvyInit ("IvyPlotProfile", "IvyPlotProfile READY", NULL, NULL, NULL, NULL);
+  IvyBindMsg(on_GPS, NULL, "^(\\S*) GPS (\\S*) (\\S*) (\\S*) (\\S*) (\\S*) (\\S*) (\\S*) (\\S*) (\\S*) (\\S*) (\\S*)");
+  IvyBindMsg(on_TMP_STATUS, NULL, "^(\\S*) TMP_STATUS (\\S*) (\\S*)");
+  IvyBindMsg(on_SHT_STATUS, NULL, "^(\\S*) SHT_STATUS (\\S*) (\\S*) (\\S*) (\\S*)");
+//  IvyBindMsg(on_SHT_STATUS, NULL, "^(\\S*) DPICCO_STATUS (\\S*) (\\S*) (\\S*) (\\S*)");
+  IvyStart("127.255.255.255");
+
+  xmint = 5;
+  xmaxt = 35;
+  xminh = 0;
+  xmaxh = 100;
+  ymin = 500;
+  ymax = 2300;
+
+  Gplt = popen("gnuplot -geometry 300x300 -noraise","w");
+  setlinebuf(Gplt);
+  fprintf(Gplt, "set xrange[%f:%f]\n", xmint, xmaxt);
+  fprintf(Gplt, "set yrange[%f:%f]\n", ymin, ymax);
+
+  Gplh = popen("gnuplot -geometry 300x300 -noraise","w");
+  setlinebuf(Gplh);
+  fprintf(Gplh, "set xrange[%f:%f]\n", xminh, xmaxh);
+  fprintf(Gplh, "set yrange[%f:%f]\n", ymin, ymax);
+
+  g_main_loop_run(ml);
+
+  fclose(Gplt);
+  fclose(Gplh);
+  return 0;
+}