tests/driver_bmx055: provide test application for bmx055

tests/driver_bmx055/Makefile

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+include ../Makefile.tests_common
+
+# include and auto-initialize all available sensors
+USEMODULE += saul_default
+# include driver for bmx055 sensor
+USEMODULE += bmx055
+# include xtimer for polling
+USEMODULE += xtimer
+
+include $(RIOTBASE)/Makefile.include

tests/driver_bmx055/README.md

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+# About
+This is a test application that is polling all three SAUL devices
+(Magnetometer, Accelerometer, Gyroscope) of the Bosch BMX055
+9-Axis Sensor.
+This test is a copy of the standard saul test. Since it utilizes all
+capabilities of the driver it is a sufficient test of the sensor.
+
+# Usage
+The application will initialize the modules with default parameters and read
+out accel, gyro and compass values each second
+default parameters are:
+- Magnetometer Sampling Rate: 10 Hz
+- Accelerometer Range: 2G
+- Gyroscope Scale: 2000 DPS

tests/driver_bmx055/main.c

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+/*
+ * Copyright (C) 2017 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     tests
+ *
+ * @file
+ * @brief       Test application for the Bosch BMX055 9-axis Sensor driver
+ *
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ * @author      Semjon Kerner <semjon.kerner@fu-berlin.de>
+ */
+
+#include <stdio.h>
+
+#include "xtimer.h"
+#include "phydat.h"
+#include "saul_reg.h"
+
+/**
+ * @brief   Read the sensors every second
+ */
+#define INTERVAL            (1LU * US_PER_SEC)
+
+int main(void)
+{
+    phydat_t res;
+    xtimer_ticks32_t last_wakeup = xtimer_now();
+
+    puts("Test application for bmx055 module");
+
+    while (1) {
+        saul_reg_t *dev = saul_reg;
+
+        if (dev == NULL) {
+            puts("No SAUL devices present");
+            return 1;
+        }
+
+        while (dev) {
+            int dim = saul_reg_read(dev, &res);
+            printf("\nDev: %s\tType: %s\n", dev->name,
+                   saul_class_to_str(dev->driver->type));
+            phydat_dump(&res, dim);
+            dev = dev->next;
+        }
+        puts("\n##########################");
+
+        xtimer_periodic_wakeup(&last_wakeup, INTERVAL);
+    }
+
+    return 0;
+}