diff --git a/.gitignore b/.gitignore
index 1775dbf..6027263 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 # Prerequisites
 *.d
+gnuplotscript.gp
 
 # Compiled Object files
 *.slo
diff --git a/control/examples/pegel/gnuplotscript.gp b/control/examples/pegel/gnuplotscript.gp
deleted file mode 100644
index 54829e1..0000000
--- a/control/examples/pegel/gnuplotscript.gp
+++ /dev/null
@@ -1,13 +0,0 @@
-set margin 10,10
-unset key
-set grid
-set title ''
-set xlabel 'U_{OUT} [V]'
-set ylabel 'U_{IN} [V]'
-set xrange [0:5]
-set yrange [0:5]
-set label at 5,5 ' [V] = 0' left
-unset output 
-set terminal qt
-unset output
-plot "/tmp/tempfile0" using ($1*0.004888):($2*0.004888) binary format="%int16%int16" endian=big title ' [V] = 0' w l
diff --git a/control/examples/pegel/main.cpp b/control/examples/pegel/main.cpp
index 4a98e19..4370320 100644
--- a/control/examples/pegel/main.cpp
+++ b/control/examples/pegel/main.cpp
@@ -34,7 +34,10 @@ int main()
     
     for(uint16_t x = 0; x < sample_count * delta; x += delta)
     {
-        pf.addDot(Dot(x, ba[x], curve));
+		drv.analogWrite0(x);
+		uint16_t y = drv.analogRead(0);
+		std::cout << x << " - " << y << std::endl;
+        pf.addDot(Dot(x, y, curve));
     }
     
 	// speichern und plotty starten
diff --git a/control/examples/pegel/test_plot b/control/examples/pegel/test_plot
index d6217fd..908f0cb 100644
Binary files a/control/examples/pegel/test_plot and b/control/examples/pegel/test_plot differ
diff --git a/control/src/Makefile b/control/src/Makefile
index c5438a4..cb2b18a 100644
--- a/control/src/Makefile
+++ b/control/src/Makefile
@@ -47,7 +47,7 @@ cli: drv $(OBJECTS_CLI)
 	$(PATH_COMPILER) $(CFLAGS) $(OBJECTS_CLI) -L $(PATH_TMP_LIB) -o $(OUT_TMP_CLI) $(LDFLAGS_CLI)
 	@bash -c 'if [ ! -f "$(OUT_DRV)" ]; then echo -e "\n*** Warning ***: driver not installed\nType \"sudo make install\" to install or update b15fdrv."; fi'
 
-install: drv
+install: all
 	@echo "Installing driver..."
 	@mkdir -p $(PATH_INCLUDE)
 	cp $(OUT_TMP_DRV) $(OUT_DRV)
@@ -55,7 +55,7 @@ install: drv
 	cp $(OUT_TMP_PLOTTY) $(OUT_PLOTTY)
 	cp drv/*.h $(PATH_INCLUDE)
 	
-uninstall:
+uninstall: clean
 	@echo "Uninstalling driver..."
 	rm -rf $(PATH_INCLUDE) $(OUT_DRV) $(OUT_CLI) $(OUT_PLOTTY)
 	
diff --git a/firmware/Makefile b/firmware/Makefile
index 7805486..15d169e 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -44,7 +44,7 @@ clean:
 
 checkfuses:
 	@echo "Checking fuses..."
-	@bash -c 'diff -B <( echo "$(FUSES)" ) <( avrdude -Pusb -p $(MCU) -c $(PROGRAMMER) 2>&1 | grep "safemode: Fuses OK" | tail -c 19 ) >/dev/null || avrdude -Pusb -p $(MCU) -c $(PROGRAMMER) -U lfuse:w:0x$(LFUSE):m -U hfuse:w:0x$(HFUSE):m -U efuse:w:0x$(EFUSE):m'
+	@bash -c 'diff -B <( echo "$(FUSES)" ) <( avrdude -Pusb -p $(MCU) -c $(PROGRAMMER) 2>&1 | grep "safemode: Fuses OK" | tail -c 19 ) >/dev/null && echo "Fuses okay" || avrdude -Pusb -p $(MCU) -c $(PROGRAMMER) -U lfuse:w:0x$(LFUSE):m -U hfuse:w:0x$(HFUSE):m -U efuse:w:0x$(EFUSE):m'
 
 upload: b15f checkfuses
 	@echo "Uploading hex file..."
diff --git a/firmware/adu.cpp b/firmware/adu.cpp
index 3e7faff..af2abca 100644
--- a/firmware/adu.cpp
+++ b/firmware/adu.cpp
@@ -3,7 +3,7 @@
 void ADU::init() volatile
 {
 	// externe Referenz an AREF
-	ADMUX = 0;
+	ADMUX = _BV(REFS0);
 
 	// ADC aktiviert, Interruptbetrieb, prescaler = 128
 	ADCSRA = _BV(ADEN) | _BV(ADIE) | _BV(ADPS2) | _BV(ADPS1) | _BV(ADPS0);