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diff --git a/src/electronics/components/piccomponentpin.h b/src/electronics/components/piccomponentpin.h
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+++ b/src/electronics/components/piccomponentpin.h
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+/***************************************************************************
+ *   Copyright (C) 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 PICCOMPONENTPIN_H
+#define PICCOMPONENTPIN_H
+
+#include "config.h"
+#ifndef NO_GPSIM
+
+#include "logic.h"
+#include "gpsim/stimuli.h"
+
+#include <qstring.h>
+
+/**
+@short Controls a pin on the PIC component
+@author David Saxton
+ */
+class PICComponentPin : public CallbackClass, public stimulus
+{
+	public:
+		PICComponentPin( PICComponent * picComponent, PicPin picPin );
+		~PICComponentPin();
+		/**
+		 * Attach this to gpsim
+		 */
+		void attach( IOPIN * iopin );
+		/**
+		 * Called when the IOPIN this class is associated with changes state.
+		 * Updates the associated LogicOut / LogicIn / etc according to what
+		 * type of pin this is.
+		 */
+		virtual void set_nodeVoltage( double v );
+		/**
+		 * Called from our logic pin when the logic changes state.
+		 */
+		void logicCallback( bool state );
+		/**
+		 * Sets the output (if has one) to low. Called when the user stops the
+		 * PIC.
+		 */
+		void resetOutput();
+		
+		virtual double get_Vth();
+		
+	protected:
+		// Conductance of pin in different configurations
+		double m_gOutHigh;
+		double m_gOutLow;
+		
+		PicPin m_picPin;
+		IOPIN * m_pIOPIN;
+		LogicOut * m_pLogicOut;
+		LogicIn * m_pLogicIn;
+		PICComponent * m_pPICComponent;
+		Stimulus_Node * m_pStimulusNode;
+		const QString m_id;
+};
+
+#endif
+#endif