Added Esplora readJoystickButton function to be consistent with Esplora readButton

Author: tigoe

libraries/Esplora/Esplora.cpp

@@ -111,6 +111,15 @@ boolean _Esplora::readButton(byte ch) {
   return (val > 512) ? HIGH : LOW;
 }
 
+boolean _Esplora::readJoystickButton() {
+ if (readChannel(CH_JOYSTICK_SW) == 1023) {
+  return HIGH;
+ } else if (readChannel(CH_JOYSTICK_SW) == 0) {
+  return LOW;
+ }
+}
+
+
 void _Esplora::writeRGB(byte r, byte g, byte b) {
   writeRed(r);
   writeGreen(g);

libraries/Esplora/Esplora.h

@@ -21,7 +21,7 @@
 #ifndef ESPLORA_H_
 #define ESPLORA_H_
 
-#include "Arduino.h"
+#include <Arduino.h>
 
 /*
  * The following constants are used internally by the Esplora
@@ -141,6 +141,8 @@ class _Esplora {
    * LOW if the button is pressed, and HIGH otherwise.
    */
   boolean readButton(byte channel);
+
+  boolean readJoystickButton();
 
   void writeRGB(byte red, byte green, byte blue);
   void writeRed(byte red);

libraries/Esplora/keywords.txt

@@ -16,6 +16,7 @@ readLightSensor	KEYWORD2
 readTemperature	KEYWORD2
 readMicrophone	KEYWORD2
 readJoystickSwitch	KEYWORD2
+readJoystickButton	KEYWORD2
 readJoystickX	KEYWORD2
 readJoystickY	KEYWORD2
 readAccelerometer	KEYWORD2