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diff --git a/src/examples/hwtest/hwtest.c b/src/examples/hwtest/hwtest.c
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+/****************************************************************************
+ *
+ *   Copyright (c) 2013 PX4 Development Team. All rights reserved.
+ *   Author:    Lorenz Meier <lm@inf.ethz.ch>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name PX4 nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+/**
+ * @file hwtest.c
+ *
+ * Simple functional hardware test.
+ *
+ * @author Lorenz Meier <lm@inf.ethz.ch>
+ */
+
+#include <nuttx/config.h>
+#include <stdio.h>
+#include <systemlib/err.h>
+#include <drivers/drv_hrt.h>
+#include <uORB/uORB.h>
+#include <uORB/topics/actuator_controls.h>
+
+__EXPORT int ex_hwtest_main(int argc, char *argv[]);
+
+int ex_hwtest_main(int argc, char *argv[])
+{
+    struct actuator_controls_s actuators;
+    memset(&actuators, 0, sizeof(actuators));
+    orb_advert_t actuator_pub_fd = orb_advertise(ORB_ID(actuator_controls_0), &actuators);
+
+    int i;
+    float rcvalue = -1.0f;
+    hrt_abstime stime;
+
+    while (true) {
+        stime = hrt_absolute_time();
+        while (hrt_absolute_time() - stime < 1000000) {
+            for (i=0; i<8; i++)
+                actuators.control[i] = rcvalue;
+            actuators.timestamp = hrt_absolute_time(); 
+            orb_publish(ORB_ID(actuator_controls_0), actuator_pub_fd, &actuators);
+        }
+        warnx("servos set to %.1f", rcvalue);
+        rcvalue *= -1.0f;
+    }
+
+    return OK;
+}