attempt idle timeout fix

leds.py

@@ -239,23 +239,33 @@ class Adafruit_CharLCD:
                 self.write4bits(ord(char), True)
 
 
+debug_statements = True
+
+
+def debug(msg):
+    if debug_statements:
+        print(msg)
+
+
 def lightlevel(lcd, level):
-    print("display level")
+    debug("display level")
     lcd.clear()
     lcd.message("Light Level:\n]" + "-"*level + "[")
 
+
 def querylightlevel():
-  print("NYI")
+    debug("NYI")
     return 7
 
+
 def color(lcd, col):
     lcd.clear()
-    lcd.message("new color:\n#" + col)
-    print("NYI")
+    lcd.message("new color:\n#{}".format(col))
+    debug("NYI")
 
 
 def querycolor():
-    print("NYI")
+    debug("NYI")
     return "ffffff"
 
 
@@ -267,22 +277,30 @@ def loop():
         idle = 0
         idle_max = 15
         cur_color = "ffffff"
-        print("loop")
+        debug("loop")
         query_color = querycolor()
-        level = querylightlevel()
+        query_level = querylightlevel()
         idle = idle + 1
-        if idle >= idle_max:
-            idle = idle_max
-            lcd.noDisplay()
-        elif query_color != cur_color:
+        debug("idle value: {}".format(idle))
+
+        if query_color != cur_color:
             if lcd.displaycontrol & lcd.LCD_DISPLAYON != lcd.displaycontrol:
                 lcd.display()
             ccolor = query_color
+            idle = 0
             color(lcd, cur_color)
-        else:
+        elif query_level != level:
+            level = query_level
+            idle = 0
             if lcd.displaycontrol & lcd.LCD_DISPLAYON != lcd.displaycontrol:
                 lcd.display()
             lightlevel(lcd, level)
+        elif idle >= idle_max:
+            debug("hit idle threshold")
+            idle = idle_max
+            lcd.noDisplay()
+        else:
+            lightlevel(lcd, level)
         sleep(1)