diff --git a/leds.py b/leds.py
index cc47ddb..cdb1344 100644
--- a/leds.py
+++ b/leds.py
@@ -249,6 +249,7 @@ def defaultPattern(n, t):
 
 class LightStrip:
   def __init__(self, data_pin = board.D18, string_length = 300, brightness = 1, pixel_order = neopixel.GRB):
+        self.data_pin = data_pin
 
         self.np = neopixel.NeoPixel(self.data_pin, string_length, brightness = brightness, auto_write=True, pixel_order = pixel_order)
         self.pattern = defaultPattern