rgbringcoder: 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

@@ -124,6 +124,7 @@ add_executable (ad8232-example ad8232.cxx)
 add_executable (grovescam-example grovescam.cxx)
 add_executable (m24lr64e-example m24lr64e.cxx)
 add_executable (grovecircularled-example grovecircularled.cxx)
+add_executable (rgbringcoder-example rgbringcoder.cxx)
 
 include_directories (${PROJECT_SOURCE_DIR}/src/hmc5883l)
 include_directories (${PROJECT_SOURCE_DIR}/src/grove)
@@ -226,6 +227,7 @@ include_directories (${PROJECT_SOURCE_DIR}/src/ad8232)
 include_directories (${PROJECT_SOURCE_DIR}/src/grovescam)
 include_directories (${PROJECT_SOURCE_DIR}/src/m24lr64e)
 include_directories (${PROJECT_SOURCE_DIR}/src/grovecircularled)
+include_directories (${PROJECT_SOURCE_DIR}/src/rgbringcoder)
 
 target_link_libraries (hmc5883l-example hmc5883l ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (groveled-example grove ${CMAKE_THREAD_LIBS_INIT})
@@ -351,4 +353,4 @@ target_link_libraries (ad8232-example ad8232 ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (grovescam-example grovescam ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (m24lr64e-example m24lr64e ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (grovecircularled-example grovecircularled ${CMAKE_THREAD_LIBS_INIT})
-
+target_link_libraries (rgbringcoder-example rgbringcoder ${CMAKE_THREAD_LIBS_INIT})

examples/c++/rgbringcoder.cxx

@@ -0,0 +1,110 @@
+/*
+ * 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 "rgbringcoder.h"
+#include <signal.h>
+
+using namespace std;
+
+int shouldRun = true;
+
+void sig_handler(int signo)
+{
+  if (signo == SIGINT)
+    shouldRun = false;
+}
+
+
+int main(int argc, char **argv)
+{
+  signal(SIGINT, sig_handler);
+
+  //! [Interesting]
+  
+  // There are a lot of pins to hook up.  These pins are valid for the
+  // Edison board, but may need to be adjusted for other platforms.
+
+  // In order:
+  // enable      - 4
+  // latch       - 10
+  // clear       - 11
+  // clock       - 2
+  // data        - 9
+  // switch      - 7
+
+  // red pwm     - 3
+  // green pwm   - 5
+  // blue pwm    - 6
+
+  // encA        - 12
+  // encB        - 13
+
+  upm::RGBRingCoder *ringCoder = 
+    new upm::RGBRingCoder(4, 10, 11, 2, 9, 7, 12, 13, 3, 5, 6);
+
+  uint16_t spin = 0x0001;
+  bool oldState = false;
+  int oldPos = 0;
+
+  // Lets go green
+  ringCoder->setRGBLED(0.99, 0.01, 0.99);
+
+  while (shouldRun)
+    {
+      // you spin me round...
+      if (spin == 0)
+        spin = 0x0001;
+
+      ringCoder->setRingLEDS(spin);
+      spin <<= 1;
+
+      // check button state
+      bool bstate = ringCoder->getButtonState();
+      if (bstate != oldState)
+        {
+          cout << "Button state changed from " << oldState << " to "
+               << bstate << endl;
+          oldState = bstate;
+        }
+
+      // check encoder position
+      int epos = ringCoder->getEncoderPosition();
+      if (epos != oldPos)
+        {
+          cout << "Encoder position changed from " << oldPos << " to "
+               << epos << endl;
+          oldPos = epos;
+        }
+
+      usleep(100000);
+    }
+      
+  //! [Interesting]
+  
+  delete ringCoder;
+  
+  return 0;
+}