Fixes

.gitignore

@@ -30,7 +30,6 @@ build/
 *.map
 flasher_args.json # Generated in build directory
 sdkconfig.old
-sdkconfig
 
 # ESP-IDF dependencies
 # For older versions or manual component management

dependencies.lock

@@ -1,190 +1,77 @@
 dependencies:
   espressif/button:
-    component_hash: 
+    dependencies: []
-      fccb18c37f1cfe0797b74a53a44d3f400f5fd01f4993b40052dfb7f401915089
-    dependencies:
-    - name: espressif/cmake_utilities
-      registry_url: https://components.espressif.com
-      require: private
-      version: '*'
-    - name: idf
-      require: private
-      version: '>=4.0'
     source:
-      registry_url: https://components.espressif.com
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__button
+      type: local
     version: 4.1.5
   espressif/cmake_utilities:
     component_hash: 
-      351350613ceafba240b761b4ea991e0f231ac7a9f59a9ee901f751bddc0bb18f
+      05165f30922b422b4b90c08845e6d449329b97370fbd06309803d8cb539d79e3
     dependencies:
     - name: idf
       require: private
       version: '>=4.1'
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
-    version: 0.5.3
+    version: 1.1.1
   espressif/eppp_link:
-    component_hash: 
+    dependencies: []
-      9472e6825f4bb71eca2b39cf1bc92659c1ac60bfd7416560ad033a7dd8641b17
-    dependencies:
-    - name: espressif/esp_serial_slave_link
-      registry_url: https://components.espressif.com
-      require: private
-      version: ^1.1.0
-    - name: idf
-      require: private
-      version: '>=5.2'
     source:
-      registry_url: https://components.espressif.com
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__eppp_link
+      type: local
     version: 1.1.4
   espressif/esp_hosted:
-    component_hash: 
+    dependencies: []
-      49424510d8cf3659aa4bcf787e7b4abbf11848a25e7e5f133cf7f3324860d066
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.3'
     source:
-      registry_url: https://components.espressif.com
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__esp_hosted
-    version: 2.11.3
+      type: local
+    version: 2.11.5
   espressif/esp_lcd_touch:
-    component_hash: 
+    dependencies: []
-      3f85a7d95af876f1a6ecca8eb90a81614890d0f03a038390804e5a77e2caf862
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.4.2'
     source:
-      registry_url: https://components.espressif.com
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__esp_lcd_touch
+      type: local
     version: 1.2.1
   espressif/esp_lcd_touch_gt911:
-    component_hash: 
+    dependencies: []
-      be02e243d18b9a661bc13b0d22c0a5cfa3f708cf04d6eb059772276c8c8a4d76
-    dependencies:
-    - name: espressif/esp_lcd_touch
-      registry_url: https://components.espressif.com
-      require: public
-      version: ^1.2.0
-    - name: idf
-      require: private
-      version: '>=4.4.2'
     source:
-      registry_url: https://components.espressif.com/
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__esp_lcd_touch_gt911
+      type: local
     version: 1.2.0~1
   espressif/esp_lv_decoder:
-    component_hash: 
+    dependencies: []
-      0eb7b2bceaf73484ef80f5004337ee31617b2450a3d40621812998a47e7dd349
-    dependencies:
-    - name: espressif/esp_new_jpeg
-      registry_url: https://components.espressif.com
-      require: private
-      version: 0.*
-    - name: espressif/libpng
-      registry_url: https://components.espressif.com
-      require: private
-      version: 1.*
-    - name: idf
-      require: private
-      version: '>=5.3'
-    - name: lvgl/lvgl
-      registry_url: https://components.espressif.com
-      require: private
-      version: '>=8,<10'
     source:
-      registry_url: https://components.espressif.com
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__esp_lv_decoder
-    targets:
+      type: local
-    - esp32
-    - esp32s2
-    - esp32s3
-    - esp32p4
-    - esp32c2
-    - esp32c3
-    - esp32c5
-    - esp32c6
     version: 0.3.2
   espressif/esp_lv_fs:
-    component_hash: 
+    dependencies: []
-      66896007884b817df34c964f9a114fff538ee2674e99fee7159162498b93f94b
-    dependencies:
-    - name: espressif/cmake_utilities
-      registry_url: https://components.espressif.com
-      require: private
-      version: 0.*
-    - name: espressif/esp_mmap_assets
-      registry_url: https://components.espressif.com
-      require: private
-      version: '>=1.2'
-    - name: idf
-      require: private
-      version: '>=4.4'
-    - name: lvgl/lvgl
-      registry_url: https://components.espressif.com
-      require: private
-      version: '>=8,<10'
     source:
-      registry_url: https://components.espressif.com
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__esp_lv_fs
+      type: local
     version: 1.0.1
   espressif/esp_lvgl_adapter:
-    component_hash: 
+    dependencies: []
-      4ba6ad754b2533cb582bff81ba672ea7a682f4724a02327e57f96e9c73d330c2
-    dependencies:
-    - name: espressif/button
-      registry_url: https://components.espressif.com
-      require: public
-      version: 4.*
-    - name: espressif/esp_lcd_touch
-      registry_url: https://components.espressif.com
-      require: public
-      version: 1.*
-    - name: espressif/esp_lv_decoder
-      registry_url: https://components.espressif.com
-      require: public
-      version: 0.*
-    - name: espressif/esp_lv_fs
-      registry_url: https://components.espressif.com
-      require: public
-      version: 1.*
-    - name: espressif/freetype
-      registry_url: https://components.espressif.com
-      require: public
-      version: 2.*
-    - name: espressif/knob
-      registry_url: https://components.espressif.com
-      require: public
-      version: 1.*
-    - name: idf
-      require: private
-      version: '>=5.5'
-    - name: lvgl/lvgl
-      registry_url: https://components.espressif.com
-      require: private
-      version: '>=8,<10'
     source:
-      registry_url: https://components.espressif.com/
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__esp_lvgl_adapter
+      type: local
     version: 0.3.0
   espressif/esp_lvgl_port:
-    component_hash: 
+    dependencies: []
-      f872401524cb645ee6ff1c9242d44fb4ddcfd4d37d7be8b9ed3f4e85a404efcd
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.1'
-    - name: lvgl/lvgl
-      registry_url: https://components.espressif.com
-      require: public
-      version: '>=8,<10'
     source:
-      registry_url: https://components.espressif.com/
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__esp_lvgl_port
+      type: local
     version: 2.7.0
   espressif/esp_mmap_assets:
     component_hash: 
@@ -198,7 +85,7 @@ dependencies:
       require: private
       version: '>=5.0'
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
     version: 1.4.0
   espressif/esp_new_jpeg:
@@ -206,7 +93,7 @@ dependencies:
       e6af208a875abd0ecfc0213d3751a11b504b463ebde6930f24096047925fa5c1
     dependencies: []
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
     targets:
     - esp32
@@ -226,49 +113,15 @@ dependencies:
       require: private
       version: '>=5.0'
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
     version: 1.1.2
-  espressif/esp_tinyusb:
-    component_hash: 
-      6f1f0c140990bf27a86611e3c1f47f9fa8468bffc3bf1eb6d551cb09f31f8908
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.0'
-    - name: espressif/tinyusb
-      registry_url: https://components.espressif.com
-      require: public
-      version: '>=0.17.0~2'
-    source:
-      registry_url: https://components.espressif.com/
-      type: service
-    targets:
-    - esp32s2
-    - esp32s3
-    - esp32p4
-    - esp32h4
-    version: 2.0.1~1
   espressif/esp_wifi_remote:
-    component_hash: 
+    dependencies: []
-      e5cb66acbf9b3e115dab6b8e1262a5473e7de6e4106d32a2a8ca7384bd21fc00
-    dependencies:
-    - name: espressif/esp_hosted
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target in [esp32h2, esp32p4]
-      version: '>=2.11'
-    - name: espressif/wifi_remote_over_eppp
-      registry_url: https://components.espressif.com
-      require: private
-      version: '>=0.1'
-    - name: idf
-      require: private
-      version: '>=5.3'
     source:
-      registry_url: https://components.espressif.com/
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__esp_wifi_remote
+      type: local
     version: 1.3.1
   espressif/freetype:
     component_hash: 
@@ -278,23 +131,15 @@ dependencies:
       require: private
       version: '>=4.4'
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
     version: 2.13.3~1
   espressif/i2c_bus:
-    component_hash: 
+    dependencies: []
-      4e990dc11734316186b489b362c61d41f23f79d58bc169795cec215e528cba14
-    dependencies:
-    - name: espressif/cmake_utilities
-      registry_url: https://components.espressif.com
-      require: private
-      version: '*'
-    - name: idf
-      require: private
-      version: '>=4.0'
     source:
-      registry_url: https://components.espressif.com
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/espressif__i2c_bus
+      type: local
     version: 1.5.0
   espressif/knob:
     component_hash: 
@@ -308,7 +153,7 @@ dependencies:
       require: private
       version: '>=4.4.1'
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
     version: 1.0.2
   espressif/libpng:
@@ -323,25 +168,9 @@ dependencies:
       require: private
       version: ^1.2.13
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
     version: 1.6.54
-  espressif/tinyusb:
-    component_hash: 
-      5ea9d3b6d6b0734a0a0b3491967aa0e1bece2974132294dbda5dd2839b247bfa
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.0'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    targets:
-    - esp32s2
-    - esp32s3
-    - esp32p4
-    - esp32h4
-    version: 0.19.0~2
   espressif/wifi_remote_over_eppp:
     component_hash: 
       e1b4c485ed5afe36615b9b555dfdcbe4be33898dc3732b5bedf235bba45bd286
@@ -354,7 +183,7 @@ dependencies:
       require: private
       version: '>=5.3'
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
     version: 0.3.0
   espressif/zlib:
@@ -365,7 +194,7 @@ dependencies:
       require: private
       version: '>=4.4'
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
     version: 1.3.1
   idf:
@@ -377,38 +206,40 @@ dependencies:
       17e68bfd21f0edf4c3ee838e2273da840bf3930e5dbc3bfa6c1190c3aed41f9f
     dependencies: []
     source:
-      registry_url: https://components.espressif.com
+      registry_url: https://components.espressif.com/
       type: service
     version: 9.4.0
   waveshare/esp_lcd_jd9365_10_1:
-    component_hash: 
+    dependencies: []
-      6c1336b93a37df2b5be42c49c4c364d0bacdbf96f053a934f881349457fac679
-    dependencies:
-    - name: espressif/cmake_utilities
-      registry_url: https://components.espressif.com
-      require: private
-      version: 0.*
-    - name: espressif/i2c_bus
-      registry_url: https://components.espressif.com
-      require: private
-      version: ^1.3.0
-    - name: idf
-      require: private
-      version: '>=5.3'
     source:
-      registry_url: https://components.espressif.com/
+      path: 
-      type: service
+        /home/thomas/projekte/test1/knxdisplay/managed_components/waveshare__esp_lcd_jd9365_10_1
-    targets:
+      type: local
-    - esp32p4
     version: 1.0.4
 direct_dependencies:
+- espressif/button
+- espressif/cmake_utilities
+- espressif/eppp_link
+- espressif/esp_hosted
+- espressif/esp_lcd_touch
 - espressif/esp_lcd_touch_gt911
+- espressif/esp_lv_decoder
+- espressif/esp_lv_fs
 - espressif/esp_lvgl_adapter
 - espressif/esp_lvgl_port
-- espressif/esp_tinyusb
+- espressif/esp_mmap_assets
+- espressif/esp_new_jpeg
+- espressif/esp_serial_slave_link
 - espressif/esp_wifi_remote
+- espressif/freetype
+- espressif/i2c_bus
+- espressif/knob
+- espressif/libpng
+- espressif/wifi_remote_over_eppp
+- espressif/zlib
 - idf
+- lvgl/lvgl
 - waveshare/esp_lcd_jd9365_10_1
-manifest_hash: 4224a9627ef40f4e86cf66ea3d5037d4b4dbfca46c368078b42e6988300c7f2f
+manifest_hash: ee0446e4a514a791315863af0d77bdcf353d357a7b8081e3e2b252138a66497b
 target: esp32p4
 version: 2.0.0

main/CMakeLists.txt

@@ -17,7 +17,7 @@ idf_component_register(SRCS "HistoryStore.cpp" "KnxWorker.cpp" "Nvs.cpp" "main.c
                              "webserver/KnxHandlers.cpp"
                              "webserver/StatusHandlers.cpp"
                              "webserver/FileManagerHandlers.cpp"
-                       PRIV_REQUIRES spi_flash esp_driver_ppa esp_lcd usb
+                       PRIV_REQUIRES spi_flash esp_driver_ppa esp_lcd
-                       REQUIRES esp_mm esp_eth esp_driver_ppa esp_timer lvgl knx ethernet_init esp_wifi_remote esp_netif esp_event nvs_flash esp_http_server fatfs sdmmc json tinyusb
+                       REQUIRES esp_mm esp_eth esp_driver_ppa esp_timer lvgl knx ethernet_init esp_wifi_remote esp_netif esp_event nvs_flash esp_http_server fatfs sdmmc json
                        INCLUDE_DIRS "webserver" "widgets"
                        EMBED_TXTFILES "embedded/filemanager.html")

main/Gui.cpp

@@ -1,9 +1,14 @@
 #include "Gui.hpp"
 #include "esp_lv_adapter.h"
 #include "esp_log.h"
+#include "esp_heap_caps.h"
+#include "esp_system.h"
 #include "Gui/WifiSetting.hpp"
 #include "Gui/EthSetting.hpp"
 #include "WidgetManager.hpp"
+#include "lvgl.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
 
 KnxWorker Gui::knxWorker; // Define the static member
 

main/HistoryStore.cpp

@@ -482,7 +482,6 @@ void HistoryStore::saveToSdCard() {
 }
 
 void HistoryStore::loadFromSdCard() {
-    return;
     if (!SdCard::instance().isMounted()) return;
 
     FILE* f = fopen(HISTORY_FILE, "rb");

main/SdCard.cpp

@@ -4,8 +4,6 @@
 #include "sdmmc_cmd.h"
 #include "driver/sdmmc_host.h"
 #include "sd_pwr_ctrl_by_on_chip_ldo.h"
-#include "tinyusb_default_config.h"
-#include "tinyusb_msc.h"
 #include <sys/stat.h>
 
 static const char* TAG = "SdCard";
@@ -111,67 +109,3 @@ bool SdCard::init() {
 
     return true;
 }
-
-bool SdCard::enableUsbMsc() {
-    if (usbMscActive_) {
-        ESP_LOGW(TAG, "USB MSC already active");
-        return true;
-    }
-
-    if (!s_card) {
-        ESP_LOGE(TAG, "SD card not initialized");
-        return false;
-    }
-
-    ESP_LOGI(TAG, "Enabling USB Mass Storage mode...");
-
-    // Unmount filesystem first (so PC has exclusive access)
-    if (mounted_) {
-        ESP_LOGI(TAG, "Unmounting SD card from filesystem...");
-        esp_err_t ret = esp_vfs_fat_sdcard_unmount(MOUNT_POINT, s_card);
-        if (ret != ESP_OK) {
-            ESP_LOGE(TAG, "Failed to unmount SD card: %s", esp_err_to_name(ret));
-            return false;
-        }
-        mounted_ = false;
-    }
-
-    // Initialize TinyUSB
-    ESP_LOGI(TAG, "Initializing TinyUSB...");
-    const tinyusb_config_t cfg = TINYUSB_DEFAULT_CONFIG();
-    esp_err_t ret = tinyusb_driver_install(&cfg);
-    if (ret != ESP_OK) {
-        ESP_LOGE(TAG, "Failed to install TinyUSB driver: %s", esp_err_to_name(ret));
-        return false;
-    }
-
-    // Initialize MSC storage with SD card
-    ESP_LOGI(TAG, "Initializing USB MSC with SD card...");
-    tinyusb_msc_storage_config_t storage_cfg = {};
-    storage_cfg.medium.card = s_card;
-    storage_cfg.mount_point = TINYUSB_MSC_STORAGE_MOUNT_USB;
-    storage_cfg.fat_fs.base_path = nullptr;
-    storage_cfg.fat_fs.config = VFS_FAT_MOUNT_DEFAULT_CONFIG();
-    storage_cfg.fat_fs.config.max_files = 5;
-    storage_cfg.fat_fs.config.allocation_unit_size = 16 * 1024;
-    storage_cfg.fat_fs.do_not_format = true;
-    storage_cfg.fat_fs.format_flags = 0;
-
-    tinyusb_msc_storage_handle_t storage_hdl = nullptr;
-    ret = tinyusb_msc_new_storage_sdmmc(&storage_cfg, &storage_hdl);
-    if (ret != ESP_OK) {
-        ESP_LOGE(TAG, "Failed to initialize MSC storage: %s", esp_err_to_name(ret));
-        return false;
-    }
-    if (storage_hdl == nullptr) {
-        ESP_LOGE(TAG, "MSC storage handle not initialized");
-        return false;
-    }
-
-    usbMscActive_ = true;
-    ESP_LOGI(TAG, "USB Mass Storage mode enabled!");
-    ESP_LOGI(TAG, "Connect USB cable to access SD card from PC.");
-    ESP_LOGI(TAG, "Reboot device to return to normal mode.");
-
-    return true;
-}

main/SdCard.hpp

@@ -5,11 +5,6 @@ public:
     static SdCard& instance();
     bool init();
     bool isMounted() const { return mounted_; }
-    bool isUsbMscActive() const { return usbMscActive_; }
-
-    // Enable USB Mass Storage mode (unmounts SD from ESP, exposes via USB)
-    // Returns true if successful. Requires reboot to return to normal mode.
-    bool enableUsbMsc();
 
     static constexpr const char* MOUNT_POINT = "/sdcard";
 
@@ -20,5 +15,4 @@ private:
     SdCard& operator=(const SdCard&) = delete;
 
     bool mounted_ = false;
-    bool usbMscActive_ = false;
 };

main/WidgetManager.cpp

@@ -16,6 +16,21 @@
 static const char* TAG = "WidgetMgr";
 static constexpr uint8_t SCREEN_ID_NONE = 0xFF;
 
+#if LV_USE_OBJ_NAME
+static void dump_flex_objects(lv_obj_t* obj, uint8_t depth) {
+    if (!obj) return;
+    if (lv_obj_get_style_layout(obj, LV_PART_MAIN) == LV_LAYOUT_FLEX) {
+        char name[64];
+        lv_obj_get_name_resolved(obj, name, sizeof(name));
+        ESP_LOGI("FlexMap", "flex obj=%p name=%s depth=%u", obj, name, depth);
+    }
+    uint32_t count = lv_obj_get_child_count(obj);
+    for (uint32_t i = 0; i < count; ++i) {
+        dump_flex_objects(lv_obj_get_child(obj, static_cast<int32_t>(i)), depth + 1);
+    }
+}
+#endif
+
 static bool is_valid_utf8(const char* text, size_t len) {
     size_t i = 0;
     while (i < len) {
@@ -358,6 +373,10 @@ void WidgetManager::applyScreen(uint8_t screenId) {
     createAllWidgets(*screen, root);
     ESP_LOGI(TAG, "Widgets created");
     applyCachedValuesToWidgets();
+#if LV_USE_OBJ_NAME
+    ESP_LOGI(TAG, "Flex containers for screen '%s':", screen->name);
+    dump_flex_objects(root, 0);
+#endif
 
     if (disp) {
         lv_display_enable_invalidation(disp, invEnabled);

main/embedded/filemanager.html

@@ -61,7 +61,6 @@ h1{color:#00d4ff;margin-bottom:1rem;font-size:1.5rem}
 <h1>SD Card File Manager</h1>
 <div class="status">
 <div class="status-item"><span class="status-dot" id="sdStatus"></span><span id="sdText">SD Card</span></div>
-<div class="status-item"><span class="status-dot" id="usbStatus"></span><span id="usbText">USB MSC</span></div>
 </div>
 <div class="drop-zone" id="dropZone">
 <p>Dateien hier ablegen oder <label style="color:#00d4ff;cursor:pointer">ausw&auml;hlen<input type="file" id="fileInput" multiple></label></p>
@@ -173,8 +172,6 @@ async function updateStatus(){
 try{const s=await API.status();
 $('sdStatus').className='status-dot '+(s.sdMounted?'ok':'err');
 $('sdText').textContent='SD: '+(s.sdMounted?'OK':'Nicht eingebunden');
-$('usbStatus').className='status-dot '+(s.usbMscActive?'ok':'err');
-$('usbText').textContent='USB: '+(s.usbMscActive?'Aktiv':'Inaktiv');
 }catch(e){}}
 async function uploadFiles(files){
 const bar=$('uploadBar'),prog=$('uploadProgress');

main/idf_component.yml

@@ -19,4 +19,3 @@ dependencies:
   espressif/esp_lcd_touch_gt911: '*'
   espressif/esp_lvgl_adapter: '*'
   espressif/esp_wifi_remote: '*'
-  espressif/esp_tinyusb: ^2.0.1

main/main.cpp

@@ -40,6 +40,8 @@ public:
 
         // Initialize LVGL adapter
         esp_lv_adapter_config_t cfg = ESP_LV_ADAPTER_DEFAULT_CONFIG();
+        cfg.stack_in_psram = true;
+        cfg.task_stack_size = 16 * 1024;
         ESP_ERROR_CHECK(esp_lv_adapter_init(&cfg));
 
         // Register display
@@ -50,6 +52,7 @@ public:
             1280, // Vertical resolution
             ESP_LV_ADAPTER_ROTATE_90 // Rotation
         );
+        disp_cfg.profile.buffer_height = 4; // Keep internal draw buffer small.
         lv_disp_t* lv_display = esp_lv_adapter_register_display(&disp_cfg);
         assert(lv_display != NULL);
 

main/webserver/StatusHandlers.cpp

@@ -1,29 +1,7 @@
 #include "WebServer.hpp"
 #include "../SdCard.hpp"
-#include "esp_log.h"
-#include <cstring>
-
-static const char* TAG = "WebServer";
-
-esp_err_t WebServer::postUsbModeHandler(httpd_req_t* req) {
-    ESP_LOGI(TAG, "Enabling USB Mass Storage mode");
-
-    bool success = SdCard::instance().enableUsbMsc();
-
-    cJSON* json = cJSON_CreateObject();
-    if (success) {
-        cJSON_AddStringToObject(json, "status", "ok");
-        cJSON_AddStringToObject(json, "message", "USB MSC enabled. Connect USB cable to access SD card. Reboot to return to normal mode.");
-    } else {
-        cJSON_AddStringToObject(json, "status", "error");
-        cJSON_AddStringToObject(json, "message", "Failed to enable USB MSC");
-    }
-    return sendJsonObject(req, json);
-}
-
 esp_err_t WebServer::getStatusHandler(httpd_req_t* req) {
     cJSON* json = cJSON_CreateObject();
     cJSON_AddBoolToObject(json, "sdMounted", SdCard::instance().isMounted());
-    cJSON_AddBoolToObject(json, "usbMscActive", SdCard::instance().isUsbMscActive());
     return sendJsonObject(req, json);
 }

main/webserver/WebServer.cpp

@@ -71,9 +71,6 @@ void WebServer::start() {
     httpd_register_uri_handler(server_, &postKnxReset);
 
     // Status routes
-    httpd_uri_t postUsbMode = { .uri = "/api/usb-mode", .method = HTTP_POST, .handler = postUsbModeHandler, .user_ctx = nullptr };
-    httpd_register_uri_handler(server_, &postUsbMode);
-
     httpd_uri_t getStatus = { .uri = "/api/status", .method = HTTP_GET, .handler = getStatusHandler, .user_ctx = nullptr };
     httpd_register_uri_handler(server_, &getStatus);
 

main/webserver/WebServer.hpp

@@ -37,7 +37,6 @@ private:
     static esp_err_t postKnxResetHandler(httpd_req_t* req);
 
     // Status handlers (StatusHandlers.cpp)
-    static esp_err_t postUsbModeHandler(httpd_req_t* req);
     static esp_err_t getStatusHandler(httpd_req_t* req);
 
     // File manager handlers (FileManagerHandlers.cpp)

main/widgets/ButtonWidget.cpp

@@ -2,6 +2,7 @@
 #include "../WidgetManager.hpp"
 #include "../Fonts.hpp"
 #include "esp_log.h"
+#include <cstdio>
 
 static const char* TAG = "ButtonWidget";
 
@@ -17,6 +18,24 @@ static lv_flex_align_t toFlexAlign(uint8_t align) {
     return LV_FLEX_ALIGN_CENTER;
 }
 
+static void set_obj_name(lv_obj_t* obj, const char* base, uint8_t id, const char* suffix) {
+#if LV_USE_OBJ_NAME
+    if (!obj || !base) return;
+    char name[48];
+    if (suffix && suffix[0] != '\0') {
+        snprintf(name, sizeof(name), "%s#%u_%s", base, id, suffix);
+    } else {
+        snprintf(name, sizeof(name), "%s#%u", base, id);
+    }
+    lv_obj_set_name(obj, name);
+#else
+    (void)obj;
+    (void)base;
+    (void)id;
+    (void)suffix;
+#endif
+}
+
 ButtonWidget::ButtonWidget(const WidgetConfig& config)
     : Widget(config)
     , contentContainer_(nullptr)
@@ -114,6 +133,7 @@ lv_obj_t* ButtonWidget::create(lv_obj_t* parent) {
     lv_obj_set_pos(obj_, config_.x, config_.y);
     lv_obj_set_size(obj_, config_.width > 0 ? config_.width : 100,
                           config_.height > 0 ? config_.height : 50);
+    set_obj_name(obj_, "Button", config_.id, nullptr);
 
     lv_obj_add_event_cb(obj_, clickCallback, LV_EVENT_CLICKED, this);
 
@@ -127,6 +147,7 @@ lv_obj_t* ButtonWidget::create(lv_obj_t* parent) {
             if (contentContainer_ == nullptr) {
                 return obj_;  // Continue without icon container
             }
+            set_obj_name(contentContainer_, "Button", config_.id, "content");
             lv_obj_remove_style_all(contentContainer_);
             lv_obj_set_size(contentContainer_, LV_PCT(100), LV_PCT(100));
             lv_obj_center(contentContainer_);
@@ -138,6 +159,7 @@ lv_obj_t* ButtonWidget::create(lv_obj_t* parent) {
 
             if (iconFirst) {
                 iconLabel_ = lv_label_create(contentContainer_);
+                set_obj_name(iconLabel_, "Button", config_.id, "icon");
                 char iconText[5];
                 encodeUtf8(config_.iconCodepoint, iconText);
                 lv_label_set_text(iconLabel_, iconText);
@@ -146,11 +168,13 @@ lv_obj_t* ButtonWidget::create(lv_obj_t* parent) {
 
             // Create text label
             label_ = lv_label_create(contentContainer_);
+            set_obj_name(label_, "Button", config_.id, "text");
             lv_label_set_text(label_, config_.text);
             lv_obj_clear_flag(label_, LV_OBJ_FLAG_CLICKABLE);
 
             if (!iconFirst) {
                 iconLabel_ = lv_label_create(contentContainer_);
+                set_obj_name(iconLabel_, "Button", config_.id, "icon");
                 char iconText[5];
                 encodeUtf8(config_.iconCodepoint, iconText);
                 lv_label_set_text(iconLabel_, iconText);
@@ -161,6 +185,7 @@ lv_obj_t* ButtonWidget::create(lv_obj_t* parent) {
         } else {
             // Simple button without icon
             label_ = lv_label_create(obj_);
+            set_obj_name(label_, "Button", config_.id, "text");
             lv_label_set_text(label_, config_.text);
             applyTextAlignment();
             lv_obj_clear_flag(label_, LV_OBJ_FLAG_CLICKABLE);

main/widgets/ChartWidget.cpp

@@ -8,7 +8,6 @@ ChartWidget::ChartWidget(const WidgetConfig& config)
 }
 
 lv_obj_t* ChartWidget::create(lv_obj_t* parent) {
-    return nullptr;
     obj_ = lv_obj_create(parent);
     if (!obj_) return nullptr;
     lv_obj_remove_style_all(obj_);

main/widgets/LabelWidget.cpp

@@ -30,6 +30,24 @@ static void set_label_text_if_changed(lv_obj_t* label, const char* text) {
     lv_label_set_text(label, text);
 }
 
+static void set_obj_name(lv_obj_t* obj, const char* base, uint8_t id, const char* suffix) {
+#if LV_USE_OBJ_NAME
+    if (!obj || !base) return;
+    char name[48];
+    if (suffix && suffix[0] != '\0') {
+        snprintf(name, sizeof(name), "%s#%u_%s", base, id, suffix);
+    } else {
+        snprintf(name, sizeof(name), "%s#%u", base, id);
+    }
+    lv_obj_set_name(obj, name);
+#else
+    (void)obj;
+    (void)base;
+    (void)id;
+    (void)suffix;
+#endif
+}
+
 int LabelWidget::encodeUtf8(uint32_t codepoint, char* buf) {
     if (codepoint < 0x80) {
         buf[0] = static_cast<char>(codepoint);
@@ -103,6 +121,7 @@ lv_obj_t* LabelWidget::create(lv_obj_t* parent) {
         }
 
         container_ = obj_;
+        set_obj_name(container_, "Label", config_.id, "container");
 
         if (hasIcon) {
             // Create elements in correct order based on icon position
@@ -111,6 +130,7 @@ lv_obj_t* LabelWidget::create(lv_obj_t* parent) {
 
             if (iconFirst) {
                 iconLabel_ = lv_label_create(container_);
+                set_obj_name(iconLabel_, "Label", config_.id, "icon");
                 char iconText[5];
                 encodeUtf8(config_.iconCodepoint, iconText);
                 lv_label_set_text(iconLabel_, iconText);
@@ -118,11 +138,13 @@ lv_obj_t* LabelWidget::create(lv_obj_t* parent) {
             }
 
             textLabel_ = lv_label_create(container_);
+            set_obj_name(textLabel_, "Label", config_.id, "text");
             lv_label_set_text(textLabel_, config_.text);
             lv_obj_clear_flag(textLabel_, LV_OBJ_FLAG_CLICKABLE);
 
             if (!iconFirst) {
                 iconLabel_ = lv_label_create(container_);
+                set_obj_name(iconLabel_, "Label", config_.id, "icon");
                 char iconText[5];
                 encodeUtf8(config_.iconCodepoint, iconText);
                 lv_label_set_text(iconLabel_, iconText);
@@ -133,6 +155,7 @@ lv_obj_t* LabelWidget::create(lv_obj_t* parent) {
         } else {
             // Container with just text label (for bg/radius)
             textLabel_ = lv_label_create(container_);
+            set_obj_name(textLabel_, "Label", config_.id, "text");
             lv_label_set_text(textLabel_, config_.text);
             lv_obj_center(textLabel_);
             lv_obj_clear_flag(textLabel_, LV_OBJ_FLAG_CLICKABLE);
@@ -141,6 +164,7 @@ lv_obj_t* LabelWidget::create(lv_obj_t* parent) {
         // Simple label without container
         obj_ = lv_label_create(parent);
         textLabel_ = obj_;
+        set_obj_name(obj_, "Label", config_.id, nullptr);
         lv_label_set_text(obj_, config_.text);
         lv_obj_set_pos(obj_, config_.x, config_.y);
         if (config_.width > 0 && config_.height > 0) {

main/widgets/PowerNodeWidget.cpp

@@ -10,11 +10,30 @@ PowerNodeWidget::PowerNodeWidget(const WidgetConfig& config)
     valueFormat_[0] = '\0';
 }
 
-static void set_label_text_if_changed(lv_obj_t* label, const char* text) {
+static bool set_label_text_if_changed(lv_obj_t* label, const char* text) {
-    if (!label || !text) return;
+    if (!label || !text) return false;
     const char* current = lv_label_get_text(label);
-    if (current && strcmp(current, text) == 0) return;
+    if (current && strcmp(current, text) == 0) return false;
     lv_label_set_text(label, text);
+    return true;
+}
+
+static void set_obj_name(lv_obj_t* obj, const char* base, uint8_t id, const char* suffix) {
+#if LV_USE_OBJ_NAME
+    if (!obj || !base) return;
+    char name[48];
+    if (suffix && suffix[0] != '\0') {
+        snprintf(name, sizeof(name), "%s#%u_%s", base, id, suffix);
+    } else {
+        snprintf(name, sizeof(name), "%s#%u", base, id);
+    }
+    lv_obj_set_name(obj, name);
+#else
+    (void)obj;
+    (void)base;
+    (void)id;
+    (void)suffix;
+#endif
 }
 
 int PowerNodeWidget::encodeUtf8(uint32_t codepoint, char* buf) {
@@ -73,6 +92,7 @@ lv_obj_t* PowerNodeWidget::create(lv_obj_t* parent) {
     if (obj_ == nullptr) {
         return nullptr;
     }
+    set_obj_name(obj_, "PowerNode", config_.id, nullptr);
 
     lv_obj_remove_style_all(obj_);
     lv_obj_set_pos(obj_, config_.x, config_.y);
@@ -80,19 +100,18 @@ lv_obj_t* PowerNodeWidget::create(lv_obj_t* parent) {
         config_.width > 0 ? config_.width : 120,
         config_.height > 0 ? config_.height : 120);
     lv_obj_clear_flag(obj_, LV_OBJ_FLAG_SCROLLABLE);
-
+    lv_obj_set_layout(obj_, LV_LAYOUT_NONE);
-    lv_obj_set_flex_flow(obj_, LV_FLEX_FLOW_COLUMN);
-    lv_obj_set_flex_align(obj_, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
     lv_obj_set_style_pad_all(obj_, 6, 0);
-    lv_obj_set_style_pad_gap(obj_, 2, 0);
     if (labelText_[0] != '\0') {
         labelLabel_ = lv_label_create(obj_);
+        set_obj_name(labelLabel_, "PowerNode", config_.id, "label");
         lv_label_set_text(labelLabel_, labelText_);
         lv_obj_clear_flag(labelLabel_, LV_OBJ_FLAG_CLICKABLE);
     }
 
     if (config_.iconCodepoint > 0 && Fonts::hasIconFont()) {
         iconLabel_ = lv_label_create(obj_);
+        set_obj_name(iconLabel_, "PowerNode", config_.id, "icon");
         char iconText[5];
         encodeUtf8(config_.iconCodepoint, iconText);
         lv_label_set_text(iconLabel_, iconText);
@@ -100,6 +119,7 @@ lv_obj_t* PowerNodeWidget::create(lv_obj_t* parent) {
     }
 
     valueLabel_ = lv_label_create(obj_);
+    set_obj_name(valueLabel_, "PowerNode", config_.id, "value");
     if (valueFormat_[0] != '\0') {
         lv_label_set_text(valueLabel_, valueFormat_);
     } else {
@@ -154,11 +174,64 @@ void PowerNodeWidget::applyStyle() {
         lv_obj_set_style_text_font(valueLabel_, Fonts::bySizeIndex(valueSizeIdx), 0);
         lv_obj_set_style_text_align(valueLabel_, LV_TEXT_ALIGN_CENTER, 0);
     }
+
+    layoutChildren();
 }
 
 void PowerNodeWidget::updateValueText(const char* text) {
     if (valueLabel_ == nullptr || text == nullptr) return;
-    set_label_text_if_changed(valueLabel_, text);
+    if (set_label_text_if_changed(valueLabel_, text)) {
+        layoutChildren();
+    }
+}
+
+void PowerNodeWidget::layoutChildren() {
+    if (obj_ == nullptr) return;
+
+    lv_obj_update_layout(obj_);
+
+    lv_coord_t width = lv_obj_get_width(obj_);
+    lv_coord_t height = lv_obj_get_height(obj_);
+    if (width <= 0 || height <= 0) return;
+
+    lv_coord_t pad_left = lv_obj_get_style_pad_left(obj_, LV_PART_MAIN);
+    lv_coord_t pad_right = lv_obj_get_style_pad_right(obj_, LV_PART_MAIN);
+    lv_coord_t pad_top = lv_obj_get_style_pad_top(obj_, LV_PART_MAIN);
+    lv_coord_t pad_bottom = lv_obj_get_style_pad_bottom(obj_, LV_PART_MAIN);
+
+    lv_coord_t avail_w = width - pad_left - pad_right;
+    lv_coord_t avail_h = height - pad_top - pad_bottom;
+    if (avail_w <= 0 || avail_h <= 0) return;
+
+    lv_obj_t* items[3];
+    uint8_t count = 0;
+    if (labelLabel_) items[count++] = labelLabel_;
+    if (iconLabel_) items[count++] = iconLabel_;
+    if (valueLabel_) items[count++] = valueLabel_;
+    if (count == 0) return;
+
+    const lv_coord_t gap = 2;
+    lv_coord_t total = 0;
+    for (uint8_t i = 0; i < count; ++i) {
+        total += lv_obj_get_height(items[i]);
+    }
+    total += gap * (count - 1);
+
+    lv_coord_t start_y = pad_top;
+    if (avail_h > total) {
+        start_y += (avail_h - total) / 2;
+    }
+
+    lv_coord_t y = start_y;
+    for (uint8_t i = 0; i < count; ++i) {
+        lv_coord_t item_w = lv_obj_get_width(items[i]);
+        lv_coord_t x = pad_left;
+        if (avail_w > item_w) {
+            x += (avail_w - item_w) / 2;
+        }
+        lv_obj_set_pos(items[i], x, y);
+        y += lv_obj_get_height(items[i]) + gap;
+    }
 }
 
 void PowerNodeWidget::onKnxValue(float value) {

main/widgets/PowerNodeWidget.hpp

@@ -21,5 +21,6 @@ private:
 
     void parseText();
     void updateValueText(const char* text);
+    void layoutChildren();
     static int encodeUtf8(uint32_t codepoint, char* buf);
 };

sdcard_content/webseite/index.html

@@ -655,7 +655,6 @@
             </div>
         </div>
         <div class="top-actions">
-            <button class="btn ghost" onclick="enableUsbMode()">USB-Modus</button>
             <button class="btn ghost prog" id="knxProgBtn" onclick="toggleKnxProg()" aria-pressed="false" title="KNX Programmiermodus">KNX Prog AUS</button>
             <button class="btn ghost danger" onclick="resetKnxSettings()">KNX Reset</button>
             <button class="btn ghost danger" onclick="resetConfig()">Zuruecksetzen</button>
@@ -2200,22 +2199,6 @@
             }
         }
 
-        async function enableUsbMode() {
-            if (!confirm('USB-Modus aktivieren?\n\nDie SD-Karte wird als USB-Laufwerk verfuegbar.\nZum Beenden: Geraet neu starten.')) return;
-            try {
-                const resp = await fetch('/api/usb-mode', { method: 'POST' });
-                const data = await resp.json();
-                if (data.status === 'ok') {
-                    showStatus('USB-Modus aktiv!');
-                    alert('USB Mass Storage aktiviert!\n\nVerbinde das USB-Kabel mit dem PC.\nDie SD-Karte erscheint als Wechseldatentraeger.\n\nZum Beenden: Geraet neu starten.');
-                } else {
-                    showStatus('USB-Modus fehlgeschlagen', true);
-                }
-            } catch (e) {
-                showStatus('Fehler beim Aktivieren', true);
-            }
-        }
-
         function showStatus(msg, isError = false) {
             const el = document.getElementById('status');
             el.textContent = msg;

sdkconfig.defaults

@@ -13,6 +13,9 @@ CONFIG_LV_DRAW_THREAD_STACK_SIZE=32768
 # Increase LVGL heap to avoid draw task OOM with dynamic UI
 CONFIG_LV_MEM_SIZE_KILOBYTES=128
 
+# Enable object names for LVGL debug mapping
+CONFIG_LV_USE_OBJ_NAME=y
+
 # Enable FreeType fonts for extended glyph coverage (e.g. umlauts)
 CONFIG_LV_USE_FREETYPE=y
 CONFIG_ESP_LVGL_ADAPTER_ENABLE_FREETYPE=y

web-interface/src/components/TopBar.vue

@@ -9,7 +9,6 @@
     </div>
     <div class="flex items-center gap-2.5 flex-wrap justify-end">
       <button class="border border-border bg-panel-2 text-text px-3.5 py-2 rounded-[10px] text-[13px] font-semibold transition hover:-translate-y-0.5 hover:bg-[#e4ebf2] active:translate-y-0.5" @click="emit('open-settings')">Einstellungen</button>
-      <button class="border border-border bg-panel-2 text-text px-3.5 py-2 rounded-[10px] text-[13px] font-semibold transition hover:-translate-y-0.5 hover:bg-[#e4ebf2] active:translate-y-0.5" @click="enableUsbMode">USB-Modus</button>
       <button
         :class="[
           'border px-3.5 py-2 rounded-[10px] text-[13px] font-semibold transition hover:-translate-y-0.5 active:translate-y-0.5',
@@ -73,21 +72,6 @@ async function handleReset() {
     }
 }
 
-async function enableUsbMode() {
-    if (!confirm('USB-Modus aktivieren?\n\nDie SD-Karte wird als USB-Laufwerk verfuegbar.\nZum Beenden: Geraet neu starten.')) return;
-    try {
-        const resp = await fetch('/api/usb-mode', { method: 'POST' });
-        const data = await resp.json();
-        if (data.status === 'ok') {
-            alert('USB Mass Storage aktiviert!\n\nVerbinde das USB-Kabel mit dem PC.\nDie SD-Karte erscheint als Wechseldatentraeger.\n\nZum Beenden: Geraet neu starten.');
-        } else {
-            alert('USB-Modus fehlgeschlagen');
-        }
-    } catch (e) {
-        alert('Fehler beim Aktivieren');
-    }
-}
-
 async function loadKnxProgMode() {
   try {
     const resp = await fetch('/api/knx/prog');