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diff --git a/source/ct-Bot/mcu/adc.c b/source/ct-Bot/mcu/adc.c
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+/*
+ * c't-Bot
+ * 
+ * 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. 
+ * This program 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 General Public License for more details.
+ * You should have received a copy of the GNU General Public 
+ * License along with this program; if not, write to the Free 
+ * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307, USA.
+ * 
+ */
+
+/*! @file 	adc.c
+ * @brief 	Routinen zum Einlesen der AnalogeingÄnge
+ * @author 	Benjamin Benz (bbe@heise.de)
+ * @date 	26.12.05
+*/
+
+#ifdef MCU
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+//#include <avr/signal.h>
+
+#include "adc.h"
+
+/*!
+ * Initialisert den AD-Umsetzer. 
+ * @param channel Für jeden Kanal, den man nutzen möchte, 
+ * muss das entsprechende Bit in channel gesetzt sein
+ * Bit0 = Kanal 0 usw.
+ */
+void adc_init(uint8 channel){
+	DDRA &= ~ channel;	// Pin als input
+	PORTA &= ~ channel;	// Alle Pullups aus.
+}
+
+/*!
+ * Liest einen analogen Kanal aus
+ * @param channel Kanal - hex-Wertigkeit des Pins (0x01 fuer PA0; 0x02 fuer PA1, ..)
+ */
+uint16 adc_read(uint8 channel){
+	uint16 result = 0x00;
+
+	// interne Refernzspannung AVCC, rechts Ausrichtung
+	ADMUX= _BV(REFS0) ;//| _BV(REFS1);	 //|(0<<ADLAR);	
+
+	ADMUX |= (channel & 0x07);		// Und jetzt Kanal waehlen, nur single ended
+	
+	ADCSRA= (1<<ADPS2) | (1<<ADPS1)|	// prescale faktor= 128 ADC laeuft
+		(1 <<ADPS0) |			// mit 14,7456MHz/ 128 = 115,2kHz 
+		(1 << ADEN)|			// ADC an
+		(1 << ADSC);			// Beginne mit der Konvertierung
+			
+	while ( (ADCSRA & (1<<ADSC)) != 0){asm volatile("nop");} //Warten bis konvertierung beendet
+					      // Das sollte 25 ADC-Zyklen dauern!
+					      // also 1/4608 s
+	result= ADCL; 
+	result+=(ADCH <<8);	// Ergebnis zusammenbauen
+	
+	return result;
+}
+#endif