diff --git a/Logic.md b/Logic.md
index 1ca9e25..1e49fa2 100644
--- a/Logic.md
+++ b/Logic.md
@@ -2,5 +2,20 @@
 
 Most logic happens on a single Event Sheet and is linked to on from other sheets. This allows for all of the code to be in one place and adding new scenes quite easy.
 
-## 
+## Login Screen
 
+The login screen has a few simple elements:
+
+- Title Text object
+- username input field
+- password input field
+- Login button
+- Register button
+
+It also houses a couple more text elements for reporting the server status:
+
+- Json-server: online/offline
+- MQTT broker: online/offline
+
+
+# On Register Button Clicked