diff --git a/src/controller.py b/src/controller.py
index 1c33b64..76c85f2 100644
--- a/src/controller.py
+++ b/src/controller.py
@@ -25,7 +25,7 @@ class Controller:
 		
 		# Create the LED segment class.
 		# This creates a 14 segment 4 character display:
-		self.display = segments.Seg14x4(self.i2c)
+		self.display = segments.Seg14x4(self.i2c, address=0x70) # find address with "sudo i2cdetect -y 1"   . you need to install: sudo apt-get install -y python-smbus i2c-tools
 		
 		# Clear the display.
 		self.display.fill(0)