From ab1e9ed8980e83a5da3e94e351a5047ad9f2e846 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Fri, 20 Mar 2026 09:04:18 +0000
Subject: [PATCH 1/2] sdkconfig.defaults: set product name to "GH LK Control"

CONFIG_DEVICE_PRODUCT_NAME is the Basic Information cluster's ProductName
attribute, which Home Assistant (and other Matter controllers) display as
the device name. The default value in the CHIP SDK is "TEST_PRODUCT".

https://claude.ai/code/session_01SxqAiQApiRTwXefk9aQ6bR
---
 sdkconfig.defaults | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sdkconfig.defaults b/sdkconfig.defaults
index ecf31ae..2c8462b 100644
--- a/sdkconfig.defaults
+++ b/sdkconfig.defaults
@@ -85,6 +85,9 @@ CONFIG_ENABLE_WIFI_STATION=n
 # under marginal RF conditions. pdMS_TO_TICKS() in app code is unaffected.
 CONFIG_FREERTOS_HZ=1000
 
+# Matter device product name shown in Home Assistant and other controllers.
+CONFIG_DEVICE_PRODUCT_NAME="GH LK Control"
+
 # Matter + logging defaults
 CONFIG_ESP_MATTER_ENABLE_DATA_MODEL=y
 # Canonical integer form for the log-level choice (2 = INFO)

From e79c0ef9988bd8e787999ae48254e93678c64d51 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Fri, 20 Mar 2026 09:09:02 +0000
Subject: [PATCH 2/2] app_main: select external antenna via GPIO03/GPIO14 at
 startup

Set GPIO03 low and GPIO14 high to route the RF switch to the U.FL
connector on the XIAO ESP32-C6, enabling the external antenna for
both BLE (commissioning) and IEEE 802.15.4 (Thread) operation.

https://claude.ai/code/session_01SxqAiQApiRTwXefk9aQ6bR
---
 main/app_main.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/main/app_main.cpp b/main/app_main.cpp
index 36cb4b3..e0b082d 100644
--- a/main/app_main.cpp
+++ b/main/app_main.cpp
@@ -1,3 +1,4 @@
+#include <driver/gpio.h>
 #include <esp_err.h>
 #include <esp_log.h>
 #include <esp_matter.h>
@@ -414,6 +415,13 @@ void app_event_cb(const ChipDeviceEvent *event, intptr_t arg)
 
 extern "C" void app_main()
 {
+    // Select the external antenna.
+    // GPIO03 low + GPIO14 high routes the RF switch to the U.FL connector.
+    gpio_set_direction(GPIO_NUM_3,  GPIO_MODE_OUTPUT);
+    gpio_set_direction(GPIO_NUM_14, GPIO_MODE_OUTPUT);
+    gpio_set_level(GPIO_NUM_3,  0);
+    gpio_set_level(GPIO_NUM_14, 1);
+
     // General-purpose NVS partition: auto-erased on unrecoverable corruption.
     // Holds only non-Matter app state; safe to wipe because all Matter
     // credentials live on the protected nvs_matter partition.