diff --git a/client/demo.c b/client/demo.c
new file mode 100644
index 0000000..878dc6c
--- /dev/null
+++ b/client/demo.c
@@ -0,0 +1,140 @@
+/* Name: lc_set-led.c
+ * Project: hid-custom-rq example
+ * Author: Christian Starkjohann
+ * Creation Date: 2008-04-10
+ * Tabsize: 4
+ * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
+ * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
+ * This Revision: $Id: lc_set-led.c 692 2008-11-07 15:07:40Z cs $
+ */
+
+/*
+General Description:
+This is the host-side driver for the custom-class example device. It searches
+the USB for the LEDControl device and sends the requests understood by this
+device.
+This program must be linked with libusb on Unix and libusb-win32 on Windows.
+See http://libusb.sourceforge.net/ or http://libusb-win32.sourceforge.net/
+respectively.
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <usb.h>
+
+#include "../firmware/globals.h"   /* custom request numbers */
+
+#include "ledcube.c"
+
+void eeprom1()
+{
+
+    // lc_set animation stop
+    lc_setMode(MODE_ANIMATION_STOP);
+
+    unsigned long buf = 0;
+    int tmp = 0;
+    int tmp2 = 26;
+    for (tmp = 0; tmp < 32; tmp++)
+    {
+        if (tmp < 27)
+            buf = (1 << tmp);
+        else
+        {
+            tmp2--;
+            buf = (1 << tmp2);
+        }
+
+        // save to position tmp
+        lc_saveFrame(buf, tmp);
+
+    }
+    //
+    // lc_set mode to animate endless loop
+    lc_setMode(MODE_ANIMATION_LOOP);
+
+}
+
+void sinus1(int max)
+{
+
+    // lc_set animation stop
+    lc_setMode(MODE_ANIMATION_STOP);
+
+    int j = max;
+    while (--j)
+    {
+
+        int i = 0;
+        for (i = 0; i < 360; i++)
+        {
+            double d = cos((double)((6.28*i)/360)) + 1; // 6.28 = PI * 2
+            unsigned long tmp = (1 << (int)((27 * d) / 2));
+
+            // show frame
+            lc_setFrame(tmp);
+
+            usleep(2500);
+        }
+
+    }
+
+}
+
+/**
+ *
+ */
+void demo()
+{
+    // stop animation
+    lc_setMode(MODE_ANIMATION_STOP);
+
+    //clear cube
+    lc_setFrame(0);
+
+    sleep(1);
+
+    // transfer one frame
+    lc_setFrame(0x06127348);
+
+    sleep(1);
+
+    // another frame
+    lc_setFrame(0x07007007);
+
+    sleep(1);
+
+    // switch all led on
+    lc_setFrame(0x07ffffff);
+
+    sleep(1);
+
+    // save animation to eeprom and animate for 60 seconds
+    //eeprom1();
+
+    //sleep(10);
+
+    // animate with a sinus wave
+    sinus1(25);
+
+    // start animation one time
+    lc_setMode(MODE_ANIMATION_SINGLE);
+}
+
+int main(int argc, char **argv)
+{
+
+    lc_init();
+
+    demo();
+
+    lc_setMode(MODE_ANIMATION_LOOP);
+
+    lc_close();
+
+    return 0;
+}
+