Added support for Arduino Esplora

libraries/Esplora/Esplora.h

@@ -0,0 +1,163 @@
+/*
+  Esplora.h - Arduino Esplora board library
+  Written by Enrico Gueli
+  Copyright (c) 2012 Arduino(TM)  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef ESPLORA_H_
+#define ESPLORA_H_
+
+#include "Arduino.h"
+
+/*
+ * The following constants are used internally by the Esplora
+ * library code.
+ */
+
+const byte JOYSTICK_BASE  = 16; // it's a "virtual" channel: its ID won't conflict with real ones
+
+const byte MAX_CHANNELS   = 13;
+
+const byte CH_SWITCH_1    = 0;
+const byte CH_SWITCH_2    = 1;
+const byte CH_SWITCH_3    = 2;
+const byte CH_SWITCH_4    = 3;
+const byte CH_SLIDER      = 4;
+const byte CH_LIGHT       = 5;
+const byte CH_TEMPERATURE = 6;
+const byte CH_MIC         = 7;
+const byte CH_JOYSTICK_SW = 10;
+const byte CH_JOYSTICK_X  = 11;
+const byte CH_JOYSTICK_Y  = 12;
+
+/*
+ * The following constants can be used with the readButton()
+ * method.
+ */
+
+const byte SWITCH_1       = 1;
+const byte SWITCH_2       = 2;
+const byte SWITCH_3       = 3;
+const byte SWITCH_4       = 4;
+
+const byte SWITCH_DOWN  = SWITCH_1;
+const byte SWITCH_LEFT  = SWITCH_2;
+const byte SWITCH_UP    = SWITCH_3;
+const byte SWITCH_RIGHT = SWITCH_4;
+
+const byte JOYSTICK_DOWN  = JOYSTICK_BASE;
+const byte JOYSTICK_LEFT  = JOYSTICK_BASE+1;
+const byte JOYSTICK_UP    = JOYSTICK_BASE+2;
+const byte JOYSTICK_RIGHT = JOYSTICK_BASE+3;
+
+/*
+ * These constants can be use for comparison with the value returned
+ * by the readButton() method.
+ */
+const boolean PRESSED   = LOW;
+const boolean RELEASED  = HIGH;
+
+/*
+ * The following constants can be used with the readTemperature()
+ * method to specify the desired scale.
+ */
+const byte DEGREES_C = 0;
+const byte DEGREES_F = 1;
+
+/*
+ * The following constants can be used with the readAccelerometer()
+ * method to specify the desired axis to return.
+ */
+const byte X_AXIS = 0;
+const byte Y_AXIS = 1;
+const byte Z_AXIS = 2;
+
+
+class _Esplora {
+private:
+  byte lastRed;
+  byte lastGreen;
+  byte lastBlue;
+
+  unsigned int readChannel(byte channel);    
+  
+  boolean joyLowHalf(byte joyCh);
+  boolean joyHighHalf(byte joyCh);
+    
+public:
+  _Esplora();
+  
+  /*
+   * Returns a number corresponding to the position of the
+   * linear potentiometer. 0 means full right, 1023 means
+   * full left.
+   */
+  inline unsigned int readSlider() { return readChannel(CH_SLIDER); }
+
+  /*
+   * Returns a number corresponding to the amount of ambient
+   * light sensed by the light sensor.
+   */
+  inline unsigned int readLightSensor() { return readChannel(CH_LIGHT); }
+
+  /*
+   * Returns the current ambient temperature, expressed either in Celsius
+   * or Fahreneit scale.
+   */
+  int readTemperature(const byte scale);
+
+  /*
+   * Returns a number corresponding to the amount of ambient noise.
+   */
+  inline unsigned int readMicrophone() { return readChannel(CH_MIC); }
+  
+  inline unsigned int readJoystickSwitch() { return readChannel(CH_JOYSTICK_SW); }
+
+  inline int readJoystickX() { 
+    return readChannel(CH_JOYSTICK_X) - 512;
+  }
+  inline int readJoystickY() {
+    return readChannel(CH_JOYSTICK_Y) - 512;
+  }
+
+  int readAccelerometer(const byte axis);
+  
+  /*
+   * Reads the current state of a button. It will return
+   * LOW if the button is pressed, and HIGH otherwise.
+   */
+  boolean readButton(byte channel);
+  
+  void writeRGB(byte red, byte green, byte blue);
+  void writeRed(byte red);
+  void writeGreen(byte green);
+  void writeBlue(byte blue);
+
+  byte readRed();
+  byte readGreen();
+  byte readBlue();
+  
+  void tone(unsigned int freq);
+  void tone(unsigned int freq, unsigned long duration);
+  void noTone();
+};
+
+
+
+extern _Esplora Esplora;
+
+#endif // ESPLORA_H_