tests/driver_tcs37727: initial commit for tcs37727 driver test

tests/driver_tcs37727/Makefile

@@ -0,0 +1,22 @@
+APPLICATION = driver_tcs37727
+include ../Makefile.tests_common
+
+FEATURES_REQUIRED = periph_i2c
+
+USEMODULE += tcs37727
+USEMODULE += xtimer
+
+ifneq (,$(TEST_TCS37727_I2C))
+  CFLAGS += -DTEST_TCS37727_I2C=$(TEST_TCS37727_I2C)
+else
+  # set random default
+  CFLAGS += -DTEST_TCS37727_I2C=I2C_0
+endif
+ifneq (,$(TEST_TCS37727_ADDR))
+  CFLAGS += -DTEST_TCS37727_ADDR=$(TEST_TCS37727_ADDR)
+else
+  # set random default
+  CFLAGS += -DTEST_TCS37727_ADDR=0x29
+endif
+
+include $(RIOTBASE)/Makefile.include

tests/driver_tcs37727/README.md

@@ -0,0 +1,9 @@
+# About
+This is a manual test application for the TCS37727 driver.
+
+# Usage
+This test application will initialize the TCS37717 sensor
+with the following parameters: Gain 4x, RGBC on, Proximity Detection off
+
+After initialization, the sensor reads the RGBC ADC data every 1s
+and prints them to STDOUT.

tests/driver_tcs37727/main.c

@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2015 PHYTEC Messtechnik GmbH
+ *
+ * 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 TCS37727 sensor driver.
+ *
+ * @author      Felix Siebel <f.siebel@phytec.de>
+ *
+ * @}
+ */
+
+#ifndef TEST_TCS37727_I2C
+#error "TEST_TCS37727_I2C not defined"
+#endif
+#ifndef TEST_TCS37727_ADDR
+#error "TEST_TCS37727_ADDR not defined"
+#endif
+
+#include <stdio.h>
+
+#include "xtimer.h"
+#include "tcs37727.h"
+
+#define SLEEP       (1000 * 1000U)
+
+int main(void)
+{
+    tcs37727_t dev;
+    tcs37727_data_t data;
+
+    puts("TCS37727 RGBC Data; Sensor driver test application\n");
+    printf("Initializing TCS37727 sensor at I2C_%i... ", TEST_TCS37727_I2C);
+
+    if (tcs37727_init(&dev, TEST_TCS37727_I2C, TEST_TCS37727_ADDR,
+                      TCS37727_ATIME_DEFAULT) == 0) {
+        puts("[OK]\n");
+    }
+    else {
+        puts("[Failed]");
+        return -1;
+    }
+
+    if (tcs37727_set_rgbc_active(&dev)) {
+        puts("Measurement start failed.");
+        return -1;
+    }
+
+    while (1) {
+        tcs37727_read(&dev, &data);
+        printf("R: %5"PRIu32" G: %5"PRIu32" B: %5"PRIu32" C: %5"PRIu32"\n",
+               data.red, data.green, data.blue, data.clear);
+        printf("CT : %5"PRIu32" Lux: %6"PRIu32" AGAIN: %2d ATIME %d\n",
+               data.ct, data.lux, dev.again, dev.atime_us);
+
+        xtimer_usleep(SLEEP);
+    }
+
+    return 0;
+}