lm35: Initial implementation

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

examples/c++/CMakeLists.txt

@@ -140,6 +140,7 @@ add_executable (mg811-example mg811.cxx)
 add_executable (wheelencoder-example wheelencoder.cxx)
 add_executable (sm130-example sm130.cxx)
 add_executable (grovegprs-example grovegprs.cxx)
+add_executable (lm35-example lm35.cxx)
 
 include_directories (${PROJECT_SOURCE_DIR}/src/hmc5883l)
 include_directories (${PROJECT_SOURCE_DIR}/src/grove)
@@ -251,6 +252,7 @@ include_directories (${PROJECT_SOURCE_DIR}/src/mg811)
 include_directories (${PROJECT_SOURCE_DIR}/src/wheelencoder)
 include_directories (${PROJECT_SOURCE_DIR}/src/sm130)
 include_directories (${PROJECT_SOURCE_DIR}/src/grovegprs)
+include_directories (${PROJECT_SOURCE_DIR}/src/lm35)
 
 target_link_libraries (hmc5883l-example hmc5883l ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (groveled-example grove ${CMAKE_THREAD_LIBS_INIT})
@@ -392,3 +394,4 @@ target_link_libraries (mg811-example mg811 ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (wheelencoder-example wheelencoder ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (sm130-example sm130 ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (grovegprs-example grovegprs ${CMAKE_THREAD_LIBS_INIT})
+target_link_libraries (lm35-example lm35 ${CMAKE_THREAD_LIBS_INIT})

examples/c++/lm35.cxx

@@ -0,0 +1,65 @@
+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <unistd.h>
+#include <iostream>
+#include <signal.h>
+#include "lm35.h"
+
+using namespace std;
+
+bool shouldRun = true;
+
+void sig_handler(int signo)
+{
+  if (signo == SIGINT)
+    shouldRun = false;
+}
+
+int main()
+{
+  signal(SIGINT, sig_handler);
+
+//! [Interesting]
+
+  // Instantiate a LM35 on analog pin A0, with a default analog
+  // reference voltage of 5.0
+  upm::LM35 *sensor = new upm::LM35(0);
+  
+  // Every half second, sample the sensor and output the temperature
+
+  while (shouldRun)
+    {
+      cout << "Temperature: " << sensor->getTemperature() << " C" << endl;
+      
+      usleep(500000);
+    }
+
+//! [Interesting]
+
+  cout << "Exiting" << endl;
+
+  delete sensor;
+  return 0;
+}

examples/javascript/lm35.js

@@ -0,0 +1,51 @@
+/*jslint node:true, vars:true, bitwise:true, unparam:true */
+/*jshint unused:true */
+
+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+var sensorObj = require('jsupm_lm35');
+
+// Instantiate a LM35 on analog pin A0, with a default analog
+// reference voltage of 5.0
+var sensor = new sensorObj.LM35(0);
+
+// Every half second, sample the sensor and output the temperature
+
+setInterval(function()
+{
+    console.log("Temperature: " + sensor.getTemperature() + " C");
+}, 500);
+
+// exit on ^C
+process.on('SIGINT', function()
+{
+    sensor = null;
+    sensorObj.cleanUp();
+    sensorObj = null;
+    console.log("Exiting.");
+    process.exit(0);
+});
+

examples/python/lm35.py

@@ -0,0 +1,49 @@
+#!/usr/bin/python
+# Author: Jon Trulson <jtrulson@ics.com>
+# Copyright (c) 2015 Intel Corporation.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import time, sys, signal, atexit
+import pyupm_lm35 as sensorObj
+
+# Instantiate a LM35 on analog pin A0, with a default analog
+# reference voltage of 5.0
+sensor = sensorObj.LM35(0)
+
+## Exit handlers ##
+# This function stops python from printing a stacktrace when you hit control-C
+def SIGINTHandler(signum, frame):
+	raise SystemExit
+
+# This function lets you run code on exit
+def exitHandler():
+	print "Exiting"
+	sys.exit(0)
+
+# Register exit handlers
+atexit.register(exitHandler)
+signal.signal(signal.SIGINT, SIGINTHandler)
+
+# Every half second, sample the sensor and output the temperature
+
+while (1):
+        print "Temperature:", sensor.getTemperature(), "C"
+	time.sleep(.5)

src/lm35/CMakeLists.txt

@@ -0,0 +1,5 @@
+set (libname "lm35")
+set (libdescription "upm DFRobot LM35 temperature sensor")
+set (module_src ${libname}.cxx)
+set (module_h ${libname}.h)
+upm_module_init()

src/lm35/javaupm_lm35.i

@@ -0,0 +1,8 @@
+%module javaupm_lm35
+%include "../upm.i"
+
+%{
+    #include "lm35.h"
+%}
+
+%include "lm35.h"

src/lm35/jsupm_lm35.i

@@ -0,0 +1,8 @@
+%module jsupm_lm35
+%include "../upm.i"
+
+%{
+    #include "lm35.h"
+%}
+
+%include "lm35.h"

src/lm35/lm35.cxx

@@ -0,0 +1,51 @@
+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <iostream>
+#include "lm35.h"
+
+using namespace std;
+using namespace upm;
+
+LM35::LM35(int pin, float aref) :
+  m_aio(pin)
+{
+  m_aRes = m_aio.getBit();
+  m_aref = aref;
+}
+
+LM35::~LM35()
+{
+}
+
+float LM35::getTemperature()
+{
+  int val = m_aio.read();
+
+  // convert to mV
+  float temp = (float(val) * (m_aref / float(1 << m_aRes))) * 1000.0;
+
+  // 10mV/degree C
+  return(temp / 10.0);
+}

src/lm35/lm35.h

@@ -0,0 +1,93 @@
+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#pragma once
+
+#include <iostream>
+#include <string>
+#include <mraa/aio.hpp>
+
+namespace upm {
+  /**
+   * @brief DFRobot LM35 Linear Temperature Sensor
+   * @defgroup lm35 libupm-lm35
+   * @ingroup dfrobot analog temp
+   */
+
+  /**
+   * @library lm35
+   * @sensor lm35
+   * @comname DFRobot LM35 Linear Temperature Sensor
+   * @altname LM35
+   * @type temp
+   * @man dfrobot
+   * @web http://www.dfrobot.com/index.php?route=product/product&product_id=76
+   * @con analog
+   *
+   * @brief API for the DFRobot LM35 Linear Temperature Sensor
+   *
+   * This sensor returns an analog voltage proportional to the
+   * temperature of the ambient environment.
+   *
+   * It has a range of 2C to 150C.
+   *
+   * This driver was developed using the DFRobot LM35 Linear
+   * Temperature Sensor
+   *
+   * @snippet lm35.cxx Interesting
+   */
+
+  class LM35 {
+  public:
+
+    /**
+     * LM35 constructor
+     *
+     * @param pin Analog pin to use
+     * @param aref Analog reference voltage; default is 5.0 V
+     */
+    LM35(int pin, float aref=5.0);
+
+    /**
+     * LM35 destructor
+     */
+    ~LM35();
+
+    /**
+     * Returns the temperature in degrees Celcius
+     *
+     * @return The Temperature in degrees Celcius
+     */
+    float getTemperature();
+
+  protected:
+    mraa::Aio m_aio;
+
+  private:
+    float m_aref;
+    // ADC resolution
+    int m_aRes;
+  };
+}
+
+

src/lm35/pyupm_lm35.i

@@ -0,0 +1,9 @@
+%module pyupm_lm35
+%include "../upm.i"
+
+%feature("autodoc", "3");
+
+%include "lm35.h"
+%{
+    #include "lm35.h"
+%}