--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/service/busyboxArduino/DFR_Key.cpp	Mon Jan 19 18:02:47 2015 -0800
@@ -0,0 +1,62 @@
+// rewritten from distro version by drewp 2015-01-04
+
+#include "Arduino.h"
+#include "DFR_Key.h"
+
+static int DEFAULT_KEY_PIN = 0; 
+static int DEFAULT_THRESHOLD = 5;
+
+// Updated for my board
+static int UPKEY_ARV = 103; //that's read "analogue read value"
+static int DOWNKEY_ARV = 266;
+static int LEFTKEY_ARV = 426;
+static int RIGHTKEY_ARV = 0;
+static int SELKEY_ARV = 668;
+static int NOKEY_ARV = 1023;
+
+DFR_Key::DFR_Key()
+{	
+  _refreshRate = 10;
+  _keyPin = DEFAULT_KEY_PIN;
+  _threshold = DEFAULT_THRESHOLD;
+  _keyIn = NO_KEY;
+  _curInput = NO_KEY;
+  _curKey = NO_KEY;
+  _prevInput = NO_KEY;
+  _prevKey = NO_KEY;
+  _oldTime = 0;
+}
+
+int DFR_Key::getKey()
+{
+  if (millis() < _oldTime + _refreshRate) {
+    return SAMPLE_WAIT;
+  }
+
+  _prevInput = _curInput;
+  _curInput = analogRead(_keyPin);
+  _oldTime = millis();
+
+  if (_curInput != _prevInput) {
+    // We could be in the middle of a key change
+    return SAMPLE_WAIT;
+  }
+
+  _prevKey = _curKey;
+
+  int curLo = _curInput - _threshold;
+  int curHi = _curInput + _threshold;
+  if (      curHi > UPKEY_ARV    && curLo < UPKEY_ARV)    _curKey = UP_KEY;
+  else if ( curHi > DOWNKEY_ARV  && curLo < DOWNKEY_ARV)  _curKey = DOWN_KEY;
+  else if ( curHi > RIGHTKEY_ARV && curLo < RIGHTKEY_ARV) _curKey = RIGHT_KEY;
+  else if ( curHi > LEFTKEY_ARV  && curLo < LEFTKEY_ARV)  _curKey = LEFT_KEY;
+  else if ( curHi > SELKEY_ARV   && curLo < SELKEY_ARV)   _curKey = SELECT_KEY;
+  else                                                    _curKey = NO_KEY;      
+
+  return _curKey;
+}
+
+void DFR_Key::setRate(int rate)
+{
+  _refreshRate = rate;
+}