From 8e5eba47d79c27fcb1c6b299083cb093f021f79c Mon Sep 17 00:00:00 2001
From: Scott Penrose <scottp@dd.com.au>
Date: Sun, 28 Dec 2025 23:27:40 +1100
Subject: [PATCH] Working C3 build

---
 examples/MultiDevice/platformio.ini | 62 ++++++++++++++++++++++++++++-
 examples/MultiDevice/src/main.cpp   |  7 +++-
 2 files changed, 66 insertions(+), 3 deletions(-)

diff --git a/examples/MultiDevice/platformio.ini b/examples/MultiDevice/platformio.ini
index 01fb603..c349f6a 100644
--- a/examples/MultiDevice/platformio.ini
+++ b/examples/MultiDevice/platformio.ini
@@ -26,16 +26,74 @@ platform = espressif32
 board = esp32-s3-devkitc-1
 framework = arduino
 monitor_speed = 115200
+monitor_filters = esp32_exception_decoder
 build_flags =
-    -DCORE_DEBUG_LEVEL=3
+#    -DCORE_DEBUG_LEVEL=3
+
+[env:esp32-s3-debug]
+platform = espressif32
+board = esp32-s3-devkitc-1
+framework = arduino
+#monitor_speed = 115200
+#monitor_filters = esp32_exception_decoder
+upload_protocol = esp-builtin
+
+; Debug configuration for GDB
+debug_tool = esp-builtin
+debug_init_break = tbreak setup
+debug_speed = 5000
+debug_load_mode = always
+
+; Build flags for debugging
+build_flags =
+    -DCORE_DEBUG_LEVEL=5    ; Maximum ESP32 debug level
+    -O0                      ; Disable optimization for debugging
+    -g3                      ; Maximum debug information
+build_type = debug
 
 [env:esp32-c3]
 platform = espressif32
+framework = arduino
+board = esp32-c3-devkitm-1
+board_build.mcu = esp32c3
+board_build.f_cpu = 160000000L
+board_build.flash_mode = dio
+board_build.partitions = default.csv
+monitor_speed = 115200
+monitor_filters = time, default, esp32_exception_decoder
+upload_speed = 921600
+# NOTE: Need these two ARDUIO_USB modes to work with serial
+build_flags =
+    -Os
+    -I src
+    -D ARDUINO_ESP32C3_DEV
+    -D CONFIG_IDF_TARGET_ESP32C3
+    -D ARDUINO_USB_MODE=1
+    -D ARDUINO_USB_CDC_ON_BOOT=1
+lib_deps =
+    elapsedMillis
+
+[env:esp32-c3-debug]
+platform = espressif32
 board = esp32-c3-devkitc-02
 framework = arduino
 monitor_speed = 115200
+
+; Upload configuration
+upload_protocol = esp-builtin
+
+; Debug configuration for GDB
+debug_tool = esp-builtin
+debug_init_break = tbreak setup
+debug_speed = 5000
+debug_load_mode = always
+
+; Build flags for debugging
 build_flags =
-    -DCORE_DEBUG_LEVEL=3
+    -DCORE_DEBUG_LEVEL=5    ; Maximum ESP32 debug level
+    -O0                      ; Disable optimization for debugging
+    -g3                      ; Maximum debug information
+build_type = debug
 
 [env:m5stick]
 platform = espressif32
diff --git a/examples/MultiDevice/src/main.cpp b/examples/MultiDevice/src/main.cpp
index 3e2fd0c..3c33f99 100644
--- a/examples/MultiDevice/src/main.cpp
+++ b/examples/MultiDevice/src/main.cpp
@@ -143,7 +143,7 @@ MyVictronCallback callback;
 
 void setup() {
     Serial.begin(115200);
-    delay(1000);
+    delay(2000);
 
     Serial.println("\n\n=================================");
     Serial.println("VictronBLE Multi-Device Example");
@@ -155,12 +155,14 @@ void setup() {
         Serial.println(victron.getLastError());
         while (1) delay(1000);
     }
+    delay(1000);
 
     // Enable debug output (optional)
     victron.setDebug(true);
 
     // Set callback for data updates
     victron.setCallback(&callback);
+    delay(1000);
 
     // Add your devices here
     // Replace with your actual MAC addresses and encryption keys
@@ -187,6 +189,7 @@ void setup() {
         "0ec3adf7433dd61793ff2f3b8ad32ed8",         // Encryption key (32 hex chars)
         DEVICE_TYPE_SOLAR_CHARGER                    // Device type
     );
+    delay(1000);
 
     /*
      *
@@ -237,8 +240,10 @@ void setup() {
         DEVICE_TYPE_INVERTER
     );
 
+    delay(1000);
     Serial.println("Configured " + String(victron.getDeviceCount()) + " devices");
     Serial.println("\nStarting BLE scan...\n");
+    delay(1000);
 }
 
 void loop() {