add color argument

RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd2in7.py

@@ -501,13 +501,13 @@ class EPD:
         self.ReadBusy()
         # pass
         
-    def Clear(self, color):
+    def Clear(self, color=0xFF):
         self.send_command(0x10)
         for i in range(0, int(self.width * self.height / 8)):
-            self.send_data(0xFF)
+            self.send_data(color)
         self.send_command(0x13)
         for i in range(0, int(self.width * self.height / 8)):
-            self.send_data(0xFF)
+            self.send_data(color)
         self.send_command(0x12) 
         self.ReadBusy()
 

RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd2in7b.py

@@ -243,15 +243,15 @@ class EPD:
         self.send_command(0x12) 
         self.ReadBusy()
         
-    def Clear(self):
+    def Clear(self, color=0x00):
         self.send_command(0x10)
         for i in range(0, int(self.width * self.height / 8)):
-            self.send_data(0x00)
+            self.send_data(color)
         self.send_command(0x11) 
         
         self.send_command(0x13)
         for i in range(0, int(self.width * self.height / 8)):
-            self.send_data(0x00)
+            self.send_data(color)
         self.send_command(0x11)
         
         self.send_command(0x12)