diff --git a/arduino/README.md b/arduino/README.md
index 4419e495..5dd3dc42 100644
--- a/arduino/README.md
+++ b/arduino/README.md
@@ -1,3 +1,5 @@
 This code is used on an Arduino acting as a payload to the CubeSat Simulator.
 
-The Arduino is on 
+The Arduino is on the Raspberry Pi i2c bus 0, address 0x4b
+
+