From e5a4f1b1e67855b9a5a00345fd83d5b43b888e5b Mon Sep 17 00:00:00 2001
From: Martin Preuss <martin@aquamaniac.de>
Date: Mon, 6 Feb 2023 21:10:41 +0100
Subject: [PATCH] main: only send value messages if we have an address.

---
 avr/main.asm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/avr/main.asm b/avr/main.asm
index 4381b93..d3d2791 100644
--- a/avr/main.asm
+++ b/avr/main.asm
@@ -245,6 +245,9 @@ printSendStats:
 #ifdef MODULES_COM
 
 Main_SendValueMsg:
+  lds r16, comAddress                ; do we have an address assigned?
+  tst r16
+  breq sendValueMsg_done             ; no, do nothing
   ; send message for current temp
   lds r22, si7021Flags
   mov r16, r22