only switch half of the lights at once to avoid led controller overload

cdoseaplay/lights.py

@@ -77,12 +77,22 @@ def fade_to(target, duration):
     step = duration/steps
     delta = distance/steps
     value = current
+    switch = 0
     while steps:
+        switch += 1
         value += delta
         n = int(round(value))
         if n != current:
             current = n
-            sender[1].dmx_data = [n] * 16
+            old = sender[1].dmx_data[:16]
+            target = [n] * 16
+            if switch % 2:
+                a = target
+                b = old
+            else:
+                a = old
+                b = target
+            sender[1].dmx_data = [a[x] if x % 2 else b[x] for x in range(16)]
             CURRENT_STATE = sender[1].dmx_data[:16]
         time.sleep(step)
         steps -= 1
@@ -98,7 +108,7 @@ def switch(state):
         #lb.fadeTo(lights, fade)
         lb.layerGo(state)
     else:
-        brightness = round(lights['7'] / 255 * 50)
+        brightness = lights['7']
         fade_to(brightness, duration)
 
 if __name__ == '__main__':