Backup before switching to flexx for GUI

Added serial communication class that can succesfully communicate with the arduino. Started work on pygame GUI but I've decided to switch direction to using Flexx instead.

Interface/Button.py

@@ -0,0 +1,34 @@
+import pygame
+class Button:
+    pos = [0,0]
+    size = [0,0]
+    color = (0, 80, 80)
+    def __init__(self, position, size, screen, function, argument):
+        self.pos = position
+        self.size = size
+        self.function = function
+        self.argument = argument
+        self.screen = screen
+        return
+
+    def isClicked(self, mouse_x, mouse_y, mouse_state):
+        x, y = mouse_x, mouse_y
+        if x >= self.pos[0] and x <= self.pos[0]+self.size[0]:
+            if y >= self.pos[1] and y <= self.pos[1]+self.size[1]:
+                if mouse_state == True:
+                    self.function(self.argument)
+                    return True
+        return False
+
+    def setPosition(self, x, y):
+        self.pos[0], self.pos[1] = x, y
+        return
+
+    def setArgument(self, argument):
+        self.argument = argument
+        return
+
+    def drawButton(self):
+        pygame.draw.rect(self.screen, self.color,
+                         pygame.Rect(self.pos[0], self.pos[1], self.size[0], self.size[1]))
+        return