Simple test for the SHT11 driver.

platform/msb430/apps/test-sht11.c

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+/*
+ * Copyright (c) 2007, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ * $Id: test-sht11.c,v 1.1 2007/10/22 13:05:30 nvt-se Exp $
+ */
+
+/**
+ * \file
+ *         Testing the SHT11 sensor.
+ * \author
+ *         Nicolas Tsiftes <nvt@sics.se>
+ */
+
+#include "contiki.h"
+#include "dev/sht11.h"
+
+#include <stdio.h>
+
+PROCESS(test_sht11_process, "SHT11 test");
+AUTOSTART_PROCESSES(&test_sht11_process);
+
+PROCESS_THREAD(test_sht11_process, ev, data)
+{
+  static struct etimer et;
+  static unsigned rh;
+
+  PROCESS_BEGIN();
+
+  etimer_set(&et, CLOCK_SECOND);
+
+  for (etimer_set(&et, CLOCK_SECOND);; etimer_reset(&et)) {
+    PROCESS_YIELD();
+    printf("Temperature:   %u degrees Celsius\n",
+	(unsigned) (-39.60 + 0.01 * sht11_temp()));
+    rh = sht11_humidity();
+    printf("Rel. humidity: %u%%\n",
+	(unsigned) (-4 + 0.0405*rh - 2.8e-6*(rh*rh)));
+  }
+
+  PROCESS_END();
+}