Made an irrelevant adjustment. Also added some documentation to the source code.

src/move.py

@@ -12,18 +12,29 @@ class Move:
         self._sensor = Sensor()
         self._bumper = ev3.TouchSensor()
 
+    '''
+    determine maximum and minimum brightness of lines/white space
+    depending on environment lighting
+    '''
     def _calibrate(self):
         pass
 
+    '''
+    Function to correct errors should the robot wander astray
+    '''
     def _aligntoedge(self):
         pass
 
+    '''
+    uses odometry and the planet object to map edges that are connected to
+    current node.
+    '''
     def getstationedges(self):
         pass
 
     def traversetonextstation(self, isknownstation):
-        self._wheel_l.speed_set = 20
-        self._wheel_r.speed_set = 20
+        self._wheel_l.speed_set = 24
+        self._wheel_r.speed_set = 24
         self._wheel_l.run()
         self._wheel_r.run()
         while(self._bumper.value() == False):

src/sensor.py

@@ -2,8 +2,14 @@
 
 import ev3dev.ev3 as ev3
 
+'''
+add enum for color definitions (type should be tupel of int's).
+later onwards compare the idividual readouts like this to determine the color:
+RED(>90, <40, <25)
+BLUE(<25, >75, >90)
+still needs to be tested and implemented
+'''
 
-# add enum for color definitions
 
 class Sensor:
     def __init__(self):
@@ -11,18 +17,20 @@ class Sensor:
         self._sensor.mode = 'COL-REFLECT'
 
     def iscolor(self, color):
-        curcol = self._sensor.bin_data("hhh")
-        if curcol == curcol:
-            return True
+        if(self._sensor.mode == 'RGB-RAW'):
+            curcol = self._sensor.bin_data("hhh")
+            if curcol == curcol:
+                return True
+            else:
+                return False
         else:
-            return False
+            print("ERROR: incorrect sensor mode:" + self._sensor.mode)
 
-    # see https://stackoverflow.com/questions/687261/converting-rgb-to-grayscale-intensity
     def getbrightness(self):
         if(self._sensor.mode == 'COL-REFLECT'):
             return self._sensor.value()
         else:
-            print("ERROR: incorrect sensor mode.")
+            print("ERROR: incorrect sensor mode:" + self._sensor.mode)
 
     def setmode(self, newmode):
         self._sensor.mode = newmode