diff --git a/Zettelkasten/Fleeting Notes/Daily/2025-08-19.md b/Zettelkasten/Fleeting Notes/Daily/2025-08-19.md
index bf4895014..f830acedd 100644
--- a/Zettelkasten/Fleeting Notes/Daily/2025-08-19.md	
+++ b/Zettelkasten/Fleeting Notes/Daily/2025-08-19.md	
@@ -3,7 +3,7 @@ id: 2025-08-19
 title: Daily — 2025-08-19
 type: daily
 created: 2025-08-19T14:31:15Z
-modified: 2025-08-19T18:44:01Z
+modified: 2025-08-19T19:06:40Z
 tags: [daily]
 ---
 
@@ -50,6 +50,9 @@ Here is a list of I/O we can use in the PLC Cabinet:
     - 5 V for Arduino
     - IO101 can use all of above
 
+6. OPC UA, don't need right now but could be useful for
+   historians and working with data later.
+
 Obviously for digital signals we can use voltage regulators
 if required but it would definitely be nice to have 3.3V
 capability for the BeagleBone, and 5V for an Arduino.