diff --git a/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epdconfig.py b/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epdconfig.py
index 5a578a9..f1aef62 100644
--- a/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epdconfig.py
+++ b/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epdconfig.py
@@ -35,22 +35,21 @@ import platform
 
 
 class Rock64:
-	RST_PIN = 17
-	DC_PIN = 25
-	CS_PIN = 8
-	BUSY_PIN = 24
+    RST_PIN = 17
+    DC_PIN = 25
+    CS_PIN = 8
+    BUSY_PIN = 24
 
-	def __init__(self):
-		import spidev
-		import R64.GPIO as GPIO
-		
-		self.GPIO = GPIO
-		self.SPI = spidev.SpiDev(32766, 1)
+    def __init__(self):
+        import spidev
+        import R64.GPIO as GPIO
+        self.GPIO = GPIO
+        self.SPI = spidev.SpiDev(32766, 1)
 
-	def digital_write(self, pin, value):
-		self.GPIO.output(pin, value)
+    def digital_write(self, pin, value):
+        self.GPIO.output(pin, value)
 
-	def digital_read(self, pin):
+    def digital_read(self, pin):
         return self.GPIO.input(pin)
 
     def delay_ms(self, delaytime):