diff --git a/0BUILD b/0BUILD
index 160de7f..36425b2 100644
--- a/0BUILD
+++ b/0BUILD
@@ -2,7 +2,7 @@
 
 <gwbuild>
 
-  <project name="aqhome" version="0.0.14" so_current="0" so_age="0" so_revision="14" write_config_h="TRUE">
+  <project name="aqhome" version="0.0.15" so_current="0" so_age="0" so_revision="15" write_config_h="TRUE">
     <setVar name="package">$(project_name)</setVar>
     <setVar name="version">
       $(project_vmajor).$(project_vminor).$(project_vpatchlevel)
@@ -153,6 +153,7 @@
         <variables>plugindir gwengui-fox16</variables>
       </dep>
       <dep id="aqcgi" name="aqcgi" minversion="0.0.1" required="TRUE" />
+      <dep id="aqdiagram" name="aqdiagram" minversion="0.0.1" required="TRUE" />
 <!--      <dep id="aqdatabase" name="aqdatabase" minversion="1.99.1" required="TRUE" >
         <variables>aqdatabase_typemakerdir</variables>
       </dep>
diff --git a/apps/aqhome-tool/0BUILD b/apps/aqhome-tool/0BUILD
index 6b8b695..3247e7c 100644
--- a/apps/aqhome-tool/0BUILD
+++ b/apps/aqhome-tool/0BUILD
@@ -6,6 +6,7 @@
 
     <includes type="c" >
       $(gwenhywfar_cflags)
+      $(aqdiagram_cflags)
       -I$(topsrcdir)
       -I$(topbuilddir)
     </includes>
@@ -54,6 +55,7 @@
 
     <libraries>
       $(gwenhywfar_libs)
+      $(aqdiagram_libs)
     </libraries>
 
     <subdirs>
diff --git a/apps/aqhome-tool/data/0BUILD b/apps/aqhome-tool/data/0BUILD
index ed2824c..f0d512c 100644
--- a/apps/aqhome-tool/data/0BUILD
+++ b/apps/aqhome-tool/data/0BUILD
@@ -44,6 +44,7 @@
       moddevice.h
       watch.h
       devicestate.h
+      imgperioddata.h
     </headers>
   
     <sources>
@@ -60,6 +61,7 @@
       moddevice.c
       watch.c
       devicestate.c
+      imgperioddata.c
     </sources>
 
     <useTargets>
diff --git a/apps/aqhome-tool/data/imgperioddata.c b/apps/aqhome-tool/data/imgperioddata.c
new file mode 100644
index 0000000..b7e7f48
--- /dev/null
+++ b/apps/aqhome-tool/data/imgperioddata.c
@@ -0,0 +1,306 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2025 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "./imgperioddata.h"
+#include "../utils.h"
+
+#include "aqhome/dataclient/client.h"
+#include "aqhome/msg/ipc/m_ipc.h"
+#include "aqhome/msg/ipc/m_ipc_result.h"
+#include "aqhome/msg/ipc/data/m_ipcd.h"
+#include "aqhome/msg/ipc/data/m_ipcd_getdata.h"
+#include "aqhome/msg/ipc/data/m_ipcd_multidata.h"
+#include "aqhome/dataclient/client.h"
+
+#include <aqdiagram/graph/timegraph.h>
+#include <aqdiagram/graph/w_graph.h>
+#include <aqdiagram/draw/context_cairo.h>
+#include <aqdiagram/data/date.h>
+#include <aqdiagram/data/floatingavg.h>
+
+#include <gwenhywfar/args.h>
+#include <gwenhywfar/i18n.h>
+#include <gwenhywfar/debug.h>
+#include <gwenhywfar/text.h>
+
+#include <ctype.h>
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * defs
+ * ------------------------------------------------------------------------------------------------
+ */
+
+#define I18S(msg) msg
+#define I18N(msg) GWEN_I18N_Translate(PACKAGE, msg)
+
+#define A_ARG GWEN_ARGS_FLAGS_HAS_ARGUMENT
+#define A_END (GWEN_ARGS_FLAGS_HELP | GWEN_ARGS_FLAGS_LAST)
+#define A_CHAR GWEN_ArgsType_Char
+#define A_INT GWEN_ArgsType_Int
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * forward declarations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+static int _runCommand(AQH_DATACLIENT *dc);
+static int _createImageFromDataPoints(AQH_DATACLIENT *dc, const char *valueName, const uint64_t *dataPoints, uint64_t recvdNum);
+static AQDG_GRAPH_DATAPAIR_LIST *_createDataPairListFromDataPoints(const uint64_t *dataPoints, uint64_t numValues);
+
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * code
+ * ------------------------------------------------------------------------------------------------
+ */
+
+int AQH_Tool_ImgPeriodData(GWEN_DB_NODE *dbGlobalArgs, int argc, char **argv)
+{
+  AQH_EVENT_LOOP *eventLoop;
+  AQH_DATACLIENT *dc;
+  int rv;
+  const GWEN_ARGS args[]= {
+    /* flags type    name                   min max s     long           short_descr, long_descr */
+    { A_ARG, A_CHAR, "brokerAddress",       0,  1,  "t",  "tcpaddress",  I18S("TCP address to connect to [127.0.0.1]"), NULL},
+    { A_ARG, A_INT,  "brokerPort",          0,  1,  "P",  "tcpport",     I18S("Specify the TCP port to listen on"), NULL},
+    { A_ARG, A_INT,  "timeout",             0,  1,  "T",  NULL,          I18S("Specify timeout in seconds for response"), NULL},
+    { A_ARG, A_CHAR, "brokerClientId",      0,  1,  "c",  "clientid",    I18S("Specify CLIENTID"), NULL},
+    { A_ARG, A_CHAR, "userId",              0,  1,  "u",  "userid",      I18S("Specify user id"), NULL},
+    { A_ARG, A_CHAR, "password",            0,  1,  "p",  "password",    I18S("Specify service password"), NULL},
+    { A_ARG, A_CHAR, "valueName",           1,  1,  "N",  "valuename",   I18S("Value name (e.g. server/temp/system)"), NULL},
+    { A_ARG, A_INT,  "numOfDatapoints",     0,  1,  "n",  NULL,          I18S("Get up to n datapoints"), NULL},
+    { A_ARG, A_CHAR, "tsBegin",             0,  1,  "tb", "tsbegin",     I18S("Timestamp range begin"), NULL},
+    { A_ARG, A_CHAR, "tsEnd",               0,  1,  "te", "tsend",       I18S("Timestamp range end"), NULL},
+    { A_ARG, A_CHAR, "imgFile",             1,  1,  "F",  NULL,          I18S("Image path"), NULL},
+    { A_ARG, A_INT,  "imgWidth",            0,  1,  "W",  NULL,          I18S("Image width"), NULL},
+    { A_ARG, A_INT,  "imgHeight",           0,  1,  "H",  NULL,          I18S("Image height"), NULL},
+    { A_ARG, A_CHAR, "upperLimit",          0,  1,  "U",  NULL,          I18S("Upper limit for y axis"), NULL},
+    { A_ARG, A_CHAR, "lowerLimit",          0,  1,  "L",  NULL,          I18S("Lower limit for y axis"), NULL},
+    { 0,     A_INT,  "dayAverage",          0,  1,  "da", NULL,          I18S("Average data over days"), NULL},
+    { A_ARG, A_INT,  "minuteAverage",       0,  1,  "ma", NULL,          I18S("Average data over units of (NUM) minutes"), NULL},
+    { A_ARG, A_INT,  "floatingAverage",     0,  1,  "fa", NULL,          I18S("Floating average over data (num)"), NULL},
+    { A_ARG, A_INT,  "precision",           0,  1,  "yp", NULL,          I18S("Y axis Data Precision (default: 2)"), NULL},
+    { A_END, A_INT,  "help",                0,  0,  "h",  "help",        I18S("Show this help screen"), NULL}
+  };
+
+  eventLoop=AQH_EventLoop_new();
+  dc=AQH_DataClient_new(eventLoop, AQH_IPC_PROTOCOL_DATA_ID, AQH_IPC_PROTOCOL_DATA_VERSION);
+
+  rv=AQH_DataClient_ReadLocalArgs(dc, dbGlobalArgs, args, argc, argv);
+  if (rv<0) {
+    DBG_ERROR(NULL, "here (%d)", rv);
+    AQH_DataClient_free(dc);
+    AQH_EventLoop_free(eventLoop);
+    return 2;
+  }
+
+  rv=AQH_DataClient_ConnectWithArgs(dc, 0);
+  if (rv<0) {
+    DBG_ERROR(NULL, "Error connecting (%d)", rv);
+    AQH_DataClient_free(dc);
+    AQH_EventLoop_free(eventLoop);
+    return 2;
+  }
+
+  rv=_runCommand(dc);
+  if (rv<0) {
+    DBG_ERROR(NULL, "Error running (%d)", rv);
+    AQH_DataClient_free(dc);
+    AQH_EventLoop_free(eventLoop);
+    return 2;
+  }
+
+  AQH_DataClient_free(dc);
+  AQH_EventLoop_free(eventLoop);
+  return 0;
+}
+
+
+
+int _runCommand(AQH_DATACLIENT *dc)
+{
+  GWEN_DB_NODE *dbLocalArgs;
+  const char *valueName;
+  uint64_t num;
+  uint64_t tsBegin;
+  uint64_t tsEnd;
+
+  dbLocalArgs=AQH_DataClient_GetDbLocalArgs(dc);
+  valueName=GWEN_DB_GetCharValue(dbLocalArgs, "valueName", 0, NULL);
+
+  num=GWEN_DB_GetIntValue(dbLocalArgs, "numOfDatapoints", 0, 10000);
+  tsBegin=Utils_GetTimeStampFromString(GWEN_DB_GetCharValue(dbLocalArgs, "tsBegin", 0, NULL));
+  if (tsBegin==(uint64_t) (-1)) {
+    DBG_ERROR(NULL, "Bad begin timestamp");
+    return 1;
+  }
+  tsEnd=Utils_GetTimeStampFromString(GWEN_DB_GetCharValue(dbLocalArgs, "tsEnd", 0, NULL));
+  if (tsEnd==(uint64_t) (-1)) {
+    DBG_ERROR(NULL, "Bad end timestamp");
+    return 1;
+  }
+
+  if (num>0) {
+    uint64_t *dataPoints;
+    uint64_t recvdNum;
+
+    dataPoints=malloc(num*sizeof(uint64_t)*2);
+
+    recvdNum=AQH_DataClient_GetPeriodData(dc, valueName, dataPoints, num, tsBegin, tsEnd);
+    if (recvdNum>0) {
+      int rv;
+
+      rv=_createImageFromDataPoints(dc, valueName, dataPoints, recvdNum);
+      if (rv!=0) {
+        DBG_INFO(NULL, "here (%d)", rv);
+        return rv;
+      }
+    }
+    free(dataPoints);
+  }
+
+  return 0;
+}
+
+
+
+int _createImageFromDataPoints(AQH_DATACLIENT *dc, const char *valueName, const uint64_t *dataPoints, uint64_t recvdNum)
+{
+  GWEN_DB_NODE *dbLocalArgs;
+  const char *imgFile;
+  int imgWidth;
+  int imgHeight;
+  int dayAverage;
+  int minuteAverage;
+  int floatingAvg;
+  int precision;
+  const char *s;
+  uint32_t tickFlags=0;
+  double upperLimit;
+  double lowerLimit;
+  AQDG_GRAPH *g;
+  AQDG_GRAPH_DATAPAIR_LIST *dpList;
+  AQDG_DRAW_CONTEXT *drawContext;
+  AQDG_OBJECT *graphObject;
+
+  dbLocalArgs=AQH_DataClient_GetDbLocalArgs(dc);
+  imgFile=GWEN_DB_GetCharValue(dbLocalArgs, "imgFile", 0, NULL);
+  imgWidth=GWEN_DB_GetIntValue(dbLocalArgs, "imgWidth", 0, 800);
+  imgHeight=GWEN_DB_GetIntValue(dbLocalArgs, "imgHeight", 0, 600);
+  dayAverage=GWEN_DB_GetIntValue(dbLocalArgs, "dayAverage", 0, 0);
+  minuteAverage=GWEN_DB_GetIntValue(dbLocalArgs, "minuteAverage", 0, 0);
+  floatingAvg=GWEN_DB_GetIntValue(dbLocalArgs, "floatingAverage", 0, 0);
+  precision=GWEN_DB_GetIntValue(dbLocalArgs, "precision", 0, 2);
+
+  s=GWEN_DB_GetCharValue(dbLocalArgs, "upperLimit", 0, NULL);
+  if (s && *s) {
+    if (1==sscanf(s, "%lf", &upperLimit))
+      tickFlags|=AQDG_TIMEGRAPH_SETUPTICKS_FLAGS_MAXY;
+    else {
+      fprintf(stderr, "Invalid upperLimit (%s)\n", s);
+      return 1;
+    }
+  }
+
+  s=GWEN_DB_GetCharValue(dbLocalArgs, "lowerLimit", 0, NULL);
+  if (s && *s) {
+    if (1==sscanf(s, "%lf", &lowerLimit))
+      tickFlags|=AQDG_TIMEGRAPH_SETUPTICKS_FLAGS_MINY;
+    else {
+      fprintf(stderr, "Invalid lowerLimit (%s)\n", s);
+      return 1;
+    }
+  }
+
+  g=AQDG_TimeGraph_new(valueName, NULL, "Value", NULL, precision);
+  dpList=_createDataPairListFromDataPoints(dataPoints, recvdNum);
+  if (dpList && dayAverage) {
+    AQDG_GRAPH_DATAPAIR_LIST *newDp;
+
+    newDp=AQDG_Data_DayAverage(dpList);
+    AQDG_Graph_DataPair_List_free(dpList);
+    dpList=newDp;
+    AQDG_Graph_DataPair_List_SortByValueX(dpList, 1);
+    DBG_ERROR(NULL, "DataPair count now: %d", AQDG_Graph_DataPair_List_GetCount(dpList));
+  }
+  if (dpList && floatingAvg) {
+    AQDG_GRAPH_DATAPAIR_LIST *newDp;
+
+    newDp=AQDG_Data_FloatingAverage(dpList, floatingAvg);
+    AQDG_Graph_DataPair_List_free(dpList);
+    dpList=newDp;
+    AQDG_Graph_DataPair_List_SortByValueX(dpList, 1);
+    DBG_ERROR(NULL, "DataPair count now: %d", AQDG_Graph_DataPair_List_GetCount(dpList));
+  }
+
+  if (dpList && minuteAverage){
+    AQDG_GRAPH_DATAPAIR_LIST *newDp;
+
+    newDp=AQDG_Data_MinutesAverage(dpList, minuteAverage);
+    AQDG_Graph_DataPair_List_free(dpList);
+    dpList=newDp;
+    AQDG_Graph_DataPair_List_SortByValueX(dpList, 1);
+    DBG_ERROR(NULL, "DataPair count now: %d", AQDG_Graph_DataPair_List_GetCount(dpList));
+  }
+
+  AQDG_TimeGraph_AddCurve(g, "Testdata", AQDG_GRAPH_TYPE_LINE, dpList);
+  AQDG_TimeGraph_SetupTicks(g, tickFlags, lowerLimit, upperLimit);
+
+  drawContext=AQDG_Draw_ContextCairo_Png_new(imgFile, imgWidth, imgHeight);
+  graphObject=AQDG_GraphWidget_new(NULL, AQDG_OBJECT_OPTIONS_STRETCHX | AQDG_OBJECT_OPTIONS_STRETCHY, drawContext);
+  AQDG_Object_SetWidth(graphObject, imgWidth);
+  AQDG_Object_SetHeight(graphObject, imgHeight);
+
+  AQDG_GraphWidget_SetupDefaultPens(graphObject);
+  AQDG_GraphWidget_SetupDefaultFonts(graphObject);
+
+  AQDG_GraphWidget_FinishWithGraph(graphObject, g);
+
+  return 0;
+}
+
+
+
+
+AQDG_GRAPH_DATAPAIR_LIST *_createDataPairListFromDataPoints(const uint64_t *dataPoints, uint64_t numValues)
+{
+  AQDG_GRAPH_DATAPAIR_LIST *dpList;
+  uint64_t i;
+
+  DBG_ERROR(NULL, "Got %d datapoints", (int) numValues);
+  dpList=AQDG_Graph_DataPair_List_new();
+  for(i=0; i<numValues; i++) {
+    AQDG_GRAPH_DATAPAIR *dp;
+    double timestamp;
+    union {double f; uint64_t i;} u;
+  
+    timestamp=(double)(*(dataPoints++));
+    u.i=*(dataPoints++);
+    dp=AQDG_Graph_DataPair_new();
+    AQDG_Graph_DataPair_SetValueX(dp, timestamp);
+    AQDG_Graph_DataPair_SetValueY(dp, u.f);
+    AQDG_Graph_DataPair_List_Add(dp, dpList);
+  }
+  AQDG_Graph_DataPair_List_SortByValueX(dpList, 1);
+  return dpList;
+}
+
+
+
+
+
+
diff --git a/apps/aqhome-tool/data/imgperioddata.h b/apps/aqhome-tool/data/imgperioddata.h
new file mode 100644
index 0000000..f0f97aa
--- /dev/null
+++ b/apps/aqhome-tool/data/imgperioddata.h
@@ -0,0 +1,21 @@
+/****************************************************************************
+ * This file is part of the project AqHome.
+ * AqHome (c) by 2025 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQHOME_TOOL_IMGPERIODDATA_H
+#define AQHOME_TOOL_IMGPERIODDATA_H
+
+
+#include <gwenhywfar/db.h>
+
+
+
+int AQH_Tool_ImgPeriodData(GWEN_DB_NODE *dbGlobalArgs, int argc, char **argv);
+
+
+#endif
+
diff --git a/apps/aqhome-tool/main.c b/apps/aqhome-tool/main.c
index ba251fe..ef92099 100644
--- a/apps/aqhome-tool/main.c
+++ b/apps/aqhome-tool/main.c
@@ -24,6 +24,7 @@
 #include "./data/moddevice.h"
 #include "./data/watch.h"
 #include "./data/devicestate.h"
+#include "./data/imgperioddata.h"
 
 #include <aqhome/api.h>
 #include <aqhome/aqhome.h>
@@ -103,6 +104,7 @@ int main(int argc, char **argv)
     GWEN_FE_DAH("moddevice", AQH_Tool_ModDevice, I18N("Modify a device on the data server")),
     GWEN_FE_DAH("watch", AQH_Tool_Watch, I18N("Watch and print changes of values on the data server")),
     GWEN_FE_DAH("devicestate", AQH_Tool_DeviceState, I18N("Show state of devices")),
+    GWEN_FE_DAH("imgperioddata", AQH_Tool_ImgPeriodData, I18N("Create diagram of datapoints from a date range")),
     GWEN_FE_END(),
   };
   const GWEN_FUNCS *func;