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diff --git a/src/electronics/components/binarycounter.h b/src/electronics/components/binarycounter.h
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+/***************************************************************************
+ *   Copyright (C) 2003-2005 by David Saxton                               *
+ *   david@bluehaze.org                                                    *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ ***************************************************************************/
+
+#ifndef EC4BITCOUNTER_H
+#define EC4BITCOUNTER_H
+
+#include "component.h"
+#include "logic.h"
+
+/**
+Simple logic counter. 4 Inputs, 4 Outputs.
+
+Outputs (A-D) represent the stored value (0-15).
+The inputs are:
+@li en - Enable incrementing of value
+@li in - Input (trigger high)
+@li r - Reset stored value to 0
+@li ud - Up/Down increment
+
+@short 4 Bit Binary Counter
+@author David Saxton
+*/
+class BinaryCounter : public CallbackClass, public Component
+{
+public:
+	BinaryCounter( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
+	~BinaryCounter();
+	
+	virtual bool canFlip() const { return true; }
+	static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
+	static LibraryItem *libraryItem();
+	
+protected:
+	void inStateChanged( bool state ); // Input
+	void rStateChanged( bool state ); // Reset
+	void enStateChanged( bool state ); // Enable
+	void udStateChanged( bool state ); // Up/Down
+	void outputValue();
+	void dataChanged();
+	void initPins( unsigned numBits );
+	
+	LogicIn *enLogic, *inLogic, *rLogic, *udLogic;
+	LogicOut * m_pLogicOut[26];
+	
+	unsigned m_numBits;
+	bool b_triggerHigh;
+	bool b_en; // Enable
+	bool b_ud; // Up/Down
+	bool b_oldIn;
+	bool b_reset;
+	long m_value;
+	long m_maxValue;
+	bool m_bDoneLogicIn;
+};
+
+#endif