From 22f3fb4d4dd33bdb81079d28c83b3716d2f652fb Mon Sep 17 00:00:00 2001
From: Matthias Wientapper <m.wientapper@gmx.de>
Date: Sun, 18 Jan 2026 11:42:38 +0100
Subject: [PATCH] platformio.ini: Adjust defaults for LoRa frequency and advert
 interval limits

---
 platformio.ini | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/platformio.ini b/platformio.ini
index 75d37e86..04a23471 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -23,12 +23,17 @@ lib_deps =
   adafruit/RTClib @ ^2.1.3
   melopero/Melopero RV3028 @ ^1.1.0
   electroniccats/CayenneLPP @ 1.6.1
-build_flags = -w -DNDEBUG -DRADIOLIB_STATIC_ONLY=1 -DRADIOLIB_GODMODE=1
-  -D LORA_FREQ=869.525
-  -D LORA_BW=250
-  -D LORA_SF=11
+build_flags = -w -DNDEBUG
+  -D LORA_FREQ=869.618
+  -D LORA_BW=62.5
+  -D LORA_SF=8
+  -D LORA_CR=8
+  ;
   -D ENABLE_PRIVATE_KEY_IMPORT=1   ; NOTE: comment these out for more secure firmware
   -D ENABLE_PRIVATE_KEY_EXPORT=1
+  ;
+  -D RADIOLIB_STATIC_ONLY=1
+  -D RADIOLIB_GODMODE=1
   -D RADIOLIB_EXCLUDE_CC1101=1
   -D RADIOLIB_EXCLUDE_RF69=1
   -D RADIOLIB_EXCLUDE_SX1231=1
@@ -43,6 +48,15 @@ build_flags = -w -DNDEBUG -DRADIOLIB_STATIC_ONLY=1 -DRADIOLIB_GODMODE=1
   -D RADIOLIB_EXCLUDE_BELL=1
   -D RADIOLIB_EXCLUDE_RTTY=1
   -D RADIOLIB_EXCLUDE_SSTV=1
+  ;
+  -D MIN_LOCAL_ADVERT_INTERVAL=60
+  -D MAX_LOCAL_ADVERT_INTERVAL=10080 ; weekly
+  -D DEF_LOCAL_ADVERT_INTERVAL=1    ; default to 2 minutes for NEW installs
+  -D MIN_FLOOD_ADVERT_INTERVAL=48
+  -D MAX_FLOOD_ADVERT_INTERVAL=8064 ; yearly
+  -D DEF_FLOOD_ADVERT_INTERVAL=48   ; default to 12 hours for NEW installs
+  ; -D NO_BOOT_ADVERT=1 ; disable boot advertisement
+  ; -D STEALTH_MODE=1   ; disable all advertisements and DISCOVER_REQ
 build_src_filter =
   +<*.cpp>
   +<helpers/*.cpp>