diff --git a/adc.py b/adc.py
index 7d7e265..ca62f3a 100644
--- a/adc.py
+++ b/adc.py
@@ -8,15 +8,15 @@ def __init__(self, miso, mosi, clk, cs):
 		self._mosi = mosi
 		self._clk = clk
 		self._cs = cs
-		
+
 	@abstractmethod
 	def get_resolution(self):
 		pass
-		
+
 	@abstractmethod
 	def setup_pins(self):
 		pass
-		
+
 	@abstractmethod
 	def read_value(self):
 		pass
\ No newline at end of file
diff --git a/main.py b/main.py
index b0f9e24..def5682 100644
--- a/main.py
+++ b/main.py
@@ -22,11 +22,11 @@ def change_icon(percent):
 
 	if (DEBUGMSG == 1):
 		print("Changed battery icon to " + percent + "%")
-	
+
 	out = check_output("ps aux | grep pngview | awk '{ print $2 }'", shell=True)
 	nums = out.split('\n')
 	i = 0
-	
+
 	for num in nums:
 		i += 1
 		if (i == 1):
@@ -39,12 +39,12 @@ def change_led(led):
 	if (led == "green"):
 		GPIO.output(GOODVOLTPIN, GPIO.HIGH)
 		GPIO.output(LOWVOLTPIN, GPIO.LOW)
-		
+
 		printf("Changed green LED to on, red LED to off")
 	elif (led == "red"):
 		GPIO.output(GOODVOLTPIN, GPIO.LOW)
 		GPIO.output(LOWVOLTPIN, GPIO.HIGH)
-		
+
 		printf("Changed green LED to off, red LED to on")
 
 def end_process(signalnum = None, handler = None):
@@ -53,7 +53,7 @@ def end_process(signalnum = None, handler = None):
 	exit(0)
 
 status = 0
-	
+
 # prepare handlers for process exit
 signal.signal(signal.SIGTERM, end_process)
 signal.signal(signal.SIGINT, end_process)
@@ -68,7 +68,7 @@ def end_process(signalnum = None, handler = None):
 else:
 	print("Unknown ADC type " + str(ADC) + "! Please set ADC in config.py to one of the supported types.")
 	exit(0)
-	
+
 adc.setup_pins()
 
 SVOLT100 = VOLT100 * HIGHRESVAL / (LOWRESVAL + HIGHRESVAL)
@@ -82,7 +82,7 @@ def end_process(signalnum = None, handler = None):
 ADC50 = SVOLT50 / (ADCVREF / adc.get_resolution())
 ADC25 = SVOLT25 / (ADCVREF / adc.get_resolution())
 ADC0 = SVOLT0 / (ADCVREF / adc.get_resolution())
-	
+
 if (DEBUGMSG == 1):
 	print("Batteries 100% voltage:		" + str(VOLT100))
 	print("Batteries 75% voltage:		" + str(VOLT75))
@@ -117,13 +117,13 @@ def end_process(signalnum = None, handler = None):
 	ret3 = adc.read_value()
 	ret = (ret1 + ret2 + ret3) / 3
 	voltage = ((HIGHRESVAL + LOWRESVAL) * ret * (ADCVREF / adc.get_resolution())) / HIGHRESVAL
-	
+
 	if (CSVOUT == 1):
 		print(str(count) + ";" + str(time.time()) + ";" + str(datetime.datetime.now()) + ";" + str(ret) + ";" + str(voltage))
-	
+
 	if (DEBUGMSG == 1):
 		print("ADC value: " + str(ret) + " (" + str(voltage) + " V)")
- 
+
 	if (ret < ADC0):
 		if (status != 0):
 			change_icon("0")
@@ -140,7 +140,7 @@ def end_process(signalnum = None, handler = None):
 		if (status != 50):
 			change_led("green")
 			change_icon("50")
-			
+
 		status = 50
 	elif (ret < ADC75):
 		if (status != 75):
diff --git a/mcp3001.py b/mcp3001.py
index 5d96fea..c4254a1 100644
--- a/mcp3001.py
+++ b/mcp3001.py
@@ -7,11 +7,11 @@ class MCP3001(ADC):
 	def setup_pins(self):
 		GPIO.setmode(GPIO.BOARD)
 		GPIO.setwarnings(False)
-		
+
 		GPIO.setup(self._miso, GPIO.IN)
 		GPIO.setup(self._clk, GPIO.OUT)
 		GPIO.setup(self._cs, GPIO.OUT)
-		
+
 	def get_resolution(self):
 		return 1024.0
 
@@ -23,20 +23,20 @@ def read_value(self):
 		for i in range(3):
 			GPIO.output(self._clk, True)
 			GPIO.output(self._clk, False)
-		
+
 		# clock out data, MSB first
 		adcout = 0
-		
+
 		for i in range(10):
 			GPIO.output(self._clk, True)
-			
+
 			adcout <<= 1
-			
+
 			if (GPIO.input(self._miso)):
 				adcout |= 0x1
 
 			GPIO.output(self._clk, False)
-			
+
 		GPIO.output(self._cs, True)
-			
+
 		return adcout
diff --git a/mcp3008.py b/mcp3008.py
index de36bd6..8bf792c 100644
--- a/mcp3008.py
+++ b/mcp3008.py
@@ -7,19 +7,19 @@ class MCP3008(ADC):
 	def __init__(self, miso, mosi, clk, cs, channel):
 		ADC.__init__(self, miso, mosi, clk, cs)
 		self._channel = channel
-	
+
 	def setup_pins(self):
 		GPIO.setmode(GPIO.BOARD)
 		GPIO.setwarnings(False)
-		
+
 		GPIO.setup(self._miso, GPIO.IN)
 		GPIO.setup(self._mosi, GPIO.OUT)
 		GPIO.setup(self._clk, GPIO.OUT)
 		GPIO.setup(self._cs, GPIO.OUT)
-		
+
 	def get_resolution(self):
 		return 1024.0
-		
+
 	def read_value(self):
 		if ((self._channel > 7) or (self._channel < 0)):
 			return -1
@@ -31,7 +31,7 @@ def read_value(self):
 		commandout = self._channel
 		commandout |= 0x18  # start bit + single-ended bit
 		commandout <<= 3    # we only need to send 5 bits here
-	
+
 		for i in range(5):
 			if (commandout & 0x80):
 				GPIO.output(self._mosi, True)
@@ -43,18 +43,18 @@ def read_value(self):
 			GPIO.output(self._clk, False)
 
 		adcout = 0
-		
+
 		# read in one empty bit, one null bit and 10 ADC bits
 		for i in range(12):
 			GPIO.output(self._clk, True)
 			GPIO.output(self._clk, False)
 			adcout <<= 1
-			
+
 			if (GPIO.input(self._miso)):
 				adcout |= 0x1
 
 		GPIO.output(self._cs, True)
 
 		adcout /= 2       # first bit is 'null' so drop it
-		
+
 		return adcout
diff --git a/mcp3551.py b/mcp3551.py
index bcd08e6..d668c9a 100644
--- a/mcp3551.py
+++ b/mcp3551.py
@@ -8,14 +8,14 @@ class MCP3551(ADC):
 	def setup_pins(self):
 		GPIO.setmode(GPIO.BOARD)
 		GPIO.setwarnings(False)
-		
+
 		GPIO.setup(self._miso, GPIO.IN)
 		GPIO.setup(self._clk, GPIO.OUT)
 		GPIO.setup(self._cs, GPIO.OUT)
 
 	def get_resolution(self):
 		return 2097152.0
-		
+
 	def read_value(self):
 		GPIO.output(self._cs, True)
 		GPIO.output(self._clk, True)
@@ -44,7 +44,7 @@ def read_value(self):
 			GPIO.output(self._clk, True)
 
 			adcraw <<= 1
-			
+
 			if (GPIO.input(self._miso)):
 				adcraw |= 0x1
 
@@ -53,15 +53,15 @@ def read_value(self):
 
 		if (adcraw & 0x400000):
 			print "MCP3551 error: overflow high"
-			
+
 		if (adcraw & 0x800000):
 			print "MCP3551 error: overflow low"
-		
+
 		# remove overflow and sign bits
 		adcout = adcraw & 0x1FFFFF
-		
+
 		# convert to negative number if necessary
 		if (adcraw & 0x200000):
 			adcout = (~adcout & 0x1FFFFF) * -1 + 1
-		
+
 		return adcout