apps/examples/mlx90614: Add mlx90614 test example

examples/mlx90614/.gitignore

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+/Make.dep
+/.depend
+/.built
+/*.asm
+/*.obj
+/*.rel
+/*.lst
+/*.sym
+/*.adb
+/*.lib
+/*.src

examples/mlx90614/Kconfig

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+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+config EXAMPLES_MLX90614
+	tristate "MLX90614 Test Example"
+	default n
+	select  LIBC_FLOATINGPOINT
+	---help---
+		Enable the MLX90614 example
+
+if EXAMPLES_MLX90614
+
+config EXAMPLES_MLX90614_PROGNAME
+	string "Program name"
+	default "MLX90614 Test Example"
+	depends on BUILD_LOADABLE
+	---help---
+		This is the name of the program that will be use when the NSH ELF
+		program is installed.
+
+endif

examples/mlx90614/Make.defs

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+############################################################################
+# apps/examples/mlx90614/Make.defs
+# Adds selected applications to apps/ build
+#
+#   Copyright (C) 2018 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# 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 NuttX 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.
+#
+############################################################################
+
+ifneq ($(CONFIG_EXAMPLES_MLX90614),)
+CONFIGURED_APPS += examples/mlx90614
+endif

examples/mlx90614/Makefile

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+############################################################################
+# apps/examples/mlx90614/Makefile
+#
+#   Copyright (C) 2018 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# 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 NuttX 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.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+# MLX90614 built-in application info
+
+APPNAME = mlx90614
+PRIORITY = SCHED_PRIORITY_DEFAULT
+STACKSIZE = 2048
+
+# MLX90614 Test
+
+ASRCS =
+CSRCS =
+MAINSRC = mlx90614_main.c
+
+CONFIG_EXAMPLES_MLX90614_PROGNAME ?= mlx90614$(EXEEXT)
+PROGNAME = $(CONFIG_EXAMPLES_MLX90614_PROGNAME)
+
+MODULE = CONFIG_EXAMPLES_MLX90614
+
+include $(APPDIR)/Application.mk

examples/mlx90614/mlx90614_main.c

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+/****************************************************************************
+ * examples/mlx90614/mlx90614_main.c
+ *
+ *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
+ *   Copyright (c) 2015-2017 Pololu Corporation.
+ *   Author: Alan Carvalho de Assis <acassis@gmail.com>
+ *
+ * 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 NuttX 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+
+#include <nuttx/sensors/ioctl.h>
+#include <nuttx/sensors/mlx90614.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define CONFIG_EXAMPLES_MLX90614_DEVNAME "/dev/therm0"
+
+/* If MLX90614 has two internal thermopile change it to 1 */
+
+#define MLX90614_DUALTHERMOPILE  0
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+#define MILISEC_DELAY  1000
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * mlx90614_main
+ ****************************************************************************/
+
+#ifdef BUILD_MODULE
+int main(int argc, FAR char *argv[])
+#else
+int mlx90614_main(int argc, char *argv[])
+#endif
+{
+  FAR struct mlx90614_temp_s temp;
+  float ta;
+  float tobj1;
+#if MLX90614_DUALTHERMOPILE
+  float tobj2;
+#endif
+  int fd;
+  int ret;
+
+  fd = open(CONFIG_EXAMPLES_MLX90614_DEVNAME, O_RDWR);
+  if (fd < 0)
+    {
+      fprintf(stderr, "ERROR: Failed to open %s: %d\n",
+              CONFIG_EXAMPLES_MLX90614_DEVNAME, errno);
+      return -1;
+    }
+
+  for (; ; )
+    {
+      /* Read new temperature from sensor */
+
+      ret = read(fd, &temp, sizeof(struct mlx90614_temp_s));
+      if (ret < 0)
+        {
+          fprintf(stderr, "Failed to read MLX90614, ERROR: %d\n", errno);
+        }
+
+      ta    = (temp.ta * 0.02) - 273.15;
+      tobj1 = (temp.tobj1 * 0.02) - 273.15;
+#if MLX90614_DUALTHERMOPILE
+      tobj2 = (temp.tobj2 * 0.02) - 273.15;
+#endif
+
+      printf("Ambient Temperature = %.2f ", ta);
+      printf("| Object 1 Temperature = %.2f ", tobj1);
+#if MLX90614_DUALTHERMOPILE
+      printf("| Object 2 Temperature = %.2f", tobj2);
+#endif
+      printf("\n");
+
+      usleep(MILISEC_DELAY * 1000);
+    }
+
+  close(fd);
+  return 0;
+}