From 9395d547353ef6b780eeb7e78b43c3803711e7ee Mon Sep 17 00:00:00 2001
From: entr0p1 <1475255+entr0p1@users.noreply.github.com>
Date: Thu, 30 Jul 2026 13:18:19 +1000
Subject: [PATCH] If radio_init() fails on the first attempt, currently the
 board will halt immediately with no feedback. This commit changes the
 behaviour to make 3 attempts to call the init. After 3 failures, the board
 will reboot.

---
 examples/companion_radio/main.cpp    | 11 ++++++++++-
 examples/kiss_modem/main.cpp         | 11 +++++++++--
 examples/simple_repeater/main.cpp    | 12 +++++++++---
 examples/simple_room_server/main.cpp | 11 ++++++++++-
 examples/simple_secure_chat/main.cpp | 11 ++++++++++-
 examples/simple_sensor/main.cpp      | 11 ++++++++++-
 6 files changed, 58 insertions(+), 9 deletions(-)

diff --git a/examples/companion_radio/main.cpp b/examples/companion_radio/main.cpp
index d39aeef95..f784ccaa4 100644
--- a/examples/companion_radio/main.cpp
+++ b/examples/companion_radio/main.cpp
@@ -135,7 +135,16 @@ void setup() {
   }
 #endif
 
-  if (!radio_init()) { halt(); }
+  int radioinit_attempts = 0;
+  while (!radio_init()) {
+    ++radioinit_attempts;
+    MESH_DEBUG_PRINTLN("Radio init failed! (attempt %d)", radioinit_attempts);
+    if (radioinit_attempts >= 3) {
+      MESH_DEBUG_PRINTLN("Radio init failed 3x - rebooting");
+      board.reboot();
+    }
+    delay(500);
+  }
 
   fast_rng.begin(radio_driver.getRngSeed());
 
diff --git a/examples/kiss_modem/main.cpp b/examples/kiss_modem/main.cpp
index 5836a6941..8d254cefc 100644
--- a/examples/kiss_modem/main.cpp
+++ b/examples/kiss_modem/main.cpp
@@ -78,8 +78,15 @@ void onGetStats(uint32_t* rx, uint32_t* tx, uint32_t* errors) {
 void setup() {
   board.begin();
 
-  if (!radio_init()) {
-    halt();
+  int radioinit_attempts = 0;
+  while (!radio_init()) {
+    ++radioinit_attempts;
+    MESH_DEBUG_PRINTLN("Radio init failed! (attempt %d)", radioinit_attempts);
+    if (radioinit_attempts >= 3) {
+      MESH_DEBUG_PRINTLN("Radio init failed 3x - rebooting");
+      board.reboot();
+    }
+    delay(500);
   }
 
   radio_driver.begin();
diff --git a/examples/simple_repeater/main.cpp b/examples/simple_repeater/main.cpp
index a714db68e..e5b57a068 100644
--- a/examples/simple_repeater/main.cpp
+++ b/examples/simple_repeater/main.cpp
@@ -60,9 +60,15 @@ void setup() {
   }
 #endif
 
-  if (!radio_init()) {
-    MESH_DEBUG_PRINTLN("Radio init failed!");
-    halt();
+  int radioinit_attempts = 0;
+  while (!radio_init()) {
+    ++radioinit_attempts;
+    MESH_DEBUG_PRINTLN("Radio init failed! (attempt %d)", radioinit_attempts);
+    if (radioinit_attempts >= 3) {
+      MESH_DEBUG_PRINTLN("Radio init failed 3x - rebooting");
+      board.reboot();
+    }
+    delay(500);
   }
 
   fast_rng.begin(radio_driver.getRngSeed());
diff --git a/examples/simple_room_server/main.cpp b/examples/simple_room_server/main.cpp
index d833fff39..db314b33a 100644
--- a/examples/simple_room_server/main.cpp
+++ b/examples/simple_room_server/main.cpp
@@ -45,7 +45,16 @@ void setup() {
   }
 #endif
 
-  if (!radio_init()) { halt(); }
+  int radioinit_attempts = 0;
+  while (!radio_init()) {
+    ++radioinit_attempts;
+    MESH_DEBUG_PRINTLN("Radio init failed! (attempt %d)", radioinit_attempts);
+    if (radioinit_attempts >= 3) {
+      MESH_DEBUG_PRINTLN("Radio init failed 3x - rebooting");
+      board.reboot();
+    }
+    delay(500);
+  }
 
   fast_rng.begin(radio_driver.getRngSeed());
 
diff --git a/examples/simple_secure_chat/main.cpp b/examples/simple_secure_chat/main.cpp
index da42ddcbb..c4929c053 100644
--- a/examples/simple_secure_chat/main.cpp
+++ b/examples/simple_secure_chat/main.cpp
@@ -564,7 +564,16 @@ void setup() {
   external_watchdog.begin();
 #endif
 
-  if (!radio_init()) { halt(); }
+  int radioinit_attempts = 0;
+  while (!radio_init()) {
+    ++radioinit_attempts;
+    MESH_DEBUG_PRINTLN("Radio init failed! (attempt %d)", radioinit_attempts);
+    if (radioinit_attempts >= 3) {
+      MESH_DEBUG_PRINTLN("Radio init failed 3x - rebooting");
+      board.reboot();
+    }
+    delay(500);
+  }
 
   fast_rng.begin(radio_driver.getRngSeed());
 
diff --git a/examples/simple_sensor/main.cpp b/examples/simple_sensor/main.cpp
index 69182f3a7..3b98d34cc 100644
--- a/examples/simple_sensor/main.cpp
+++ b/examples/simple_sensor/main.cpp
@@ -70,7 +70,16 @@ void setup() {
   }
 #endif
 
-  if (!radio_init()) { halt(); }
+  int radioinit_attempts = 0;
+  while (!radio_init()) {
+    ++radioinit_attempts;
+    MESH_DEBUG_PRINTLN("Radio init failed! (attempt %d)", radioinit_attempts);
+    if (radioinit_attempts >= 3) {
+      MESH_DEBUG_PRINTLN("Radio init failed 3x - rebooting");
+      board.reboot();
+    }
+    delay(500);
+  }
 
   fast_rng.begin(radio_driver.getRngSeed());