diff --git a/0 Journal/0 Daily/2025-02-03.md b/0 Journal/0 Daily/2025-02-03.md
index 0883549..984a950 100644
--- a/0 Journal/0 Daily/2025-02-03.md	
+++ b/0 Journal/0 Daily/2025-02-03.md	
@@ -25,6 +25,14 @@ in /var/log/
 -u pass systemd unit
 -r is ordering in most recent.
 
+### MQTT
+- 
+- every 30 days history was downsampled 
+- mqtt explorer for visualization
+---
+1. define data structure (on FC)
+	1. needs to work with 
+
 
 ___
 ## Reflection