added udp logger to log over network and not uart

Added modem sleep for wif

Provider/AGENTS.md

@@ -17,6 +17,11 @@ npm run dev            # Dev server — calls real ESP32 API (set VITE_API_BASE
 npm run build          # Production build → dist/index.html
 npm run build:esp32    # Build + gzip → dist/index.html.gz
 npm run ota:deploy     # OTA deploy frontend to device
+### Logging on Ethernet
+When the device is connected via Ethernet, logs are broadcast over UDP. Run `ncat -ul 514` on your PC to view the live `ESP_LOG` output.
+*(If `ncat` throws a `WSAEMSGSIZE` error on Windows, use this Python command instead:)*
+```powershell
+python -c "import socket; s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM); s.bind(('', 514)); [print(m[0].decode(errors='ignore'), end='') for m in iter(lambda:s.recvfrom(4096), None)]"
 ```
 
 There are no automated tests. Verify by building and inspecting on-device.

Provider/GEMINI.md

@@ -103,3 +103,11 @@ npm run ota:package        # Package as versioned .bin
 npm run ota:bundle         # Package FW + frontend as .bundle
 npm run ota:deploy         # Deploy frontend OTA to device
 ```
+
+## Logging on Ethernet
+
+When the device is connected to Ethernet, logs are broadcast over UDP to port 514. Use `ncat -ul 514` on your PC to view them live.
+*(If `ncat` throws a `WSAEMSGSIZE` error on Windows, use this Python command instead:)*
+```powershell
+python -c "import socket; s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM); s.bind(('', 514)); [print(m[0].decode(errors='ignore'), end='') for m in iter(lambda:s.recvfrom(4096), None)]"
+```

Provider/main/CMakeLists.txt

@@ -2,7 +2,7 @@ idf_component_register(SRCS  "main.cpp"
                             # Needed as we use minimal build
                             PRIV_REQUIRES esp_http_server esp_eth
                              esp_wifi nvs_flash esp_netif vfs
-                             json app_update esp_timer esp_psram mdns
+                             json app_update esp_timer esp_psram mdns driver
         INCLUDE_DIRS ".")
 
 if(CONFIG_CALENDINK_DEPLOY_WEB_PAGES)

Provider/main/Kconfig.projbuild

@@ -38,6 +38,13 @@ menu "CalendarInk Network Configuration"
             The hostname to use for mDNS. The device will be accessible
             at <hostname>.local. (e.g., calendink.local)
 
+    config CALENDINK_UDP_LOG_TARGET_IP
+        string "UDP Logger Target IP Address"
+        default ""
+        help
+            The IP address to send UDP logs to via port 514. 
+            If left blank, logs will be broadcast to 255.255.255.255.
+
 endmenu
 
 menu "Calendink Web Server"

Provider/main/connect.cpp

@@ -3,11 +3,13 @@
 #include <string.h>
 
 // SDK
+#include "driver/gpio.h"
 #include "esp_err.h"
 #include "esp_eth.h"
 #include "esp_eth_driver.h"
 #include "esp_event.h"
 #include "esp_log.h"
+#include "esp_sleep.h"
 #include "esp_wifi.h"
 #include "ethernet_init.h"
 #include "freertos/FreeRTOS.h"
@@ -340,6 +342,10 @@ internal esp_err_t connect_wifi(const char *ssid, const char *password,
   ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
   ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
   ESP_ERROR_CHECK(esp_wifi_start());
+
+  // Reverting to MIN_MODEM because MAX_MODEM causes disconnects on many routers
+  ESP_ERROR_CHECK(esp_wifi_set_ps(WIFI_PS_MAX_MODEM));
+
   ESP_ERROR_CHECK(esp_wifi_connect());
 
   ESP_ERROR_CHECK(esp_register_shutdown_handler(&teardown_wifi));

Provider/main/led_status.cpp

@@ -58,6 +58,7 @@ internal void set_led_status(led_status status)
   }
   led_strip_refresh(led_strip);
 }
+
 #if CONFIG_CALENDINK_BLINK_IP
 internal void led_blink_number(int n, uint8_t r, uint8_t g, uint8_t b)
 {

Provider/main/main.cpp

@@ -5,6 +5,7 @@
 // SDK
 #include "esp_log.h"
 #include "esp_ota_ops.h"
+#include "esp_pm.h"
 #include "esp_psram.h"
 #include "esp_system.h"
 #include "freertos/FreeRTOS.h"
@@ -24,6 +25,7 @@
 #include "connect.cpp"
 #include "http_server.cpp"
 #include "mdns_service.cpp"
+#include "udp_logger.cpp"
 // clang-format on
 
 internal const char *kTagMain = "MAIN";
@@ -35,11 +37,24 @@ uint8_t g_Active_WWW_Partition = 0;
 
 constexpr bool kBlockUntilEthernetEstablished = false;
 
+internal void my_timer_callback(void *arg)
+{
+  ESP_LOGI(kTagMain, "Timer finished! Turning Led Off...");
+  destroy_led();
+}
+
 extern "C" void app_main()
 {
   ESP_LOGI(kTagMain, "Hello, Calendink OTA! [V0.1.1]");
   ESP_LOGI(kTagMain, "PSRAM size: %d bytes", esp_psram_get_size());
 
+#if CONFIG_PM_ENABLE
+  esp_pm_config_t pm_config = {
+      .max_freq_mhz = 240, .min_freq_mhz = 40, .light_sleep_enable = true};
+  esp_pm_configure(&pm_config);
+  ESP_LOGI(kTagMain, "Dynamic Power Management initialized (Tickless Idle).");
+#endif
+
   httpd_handle_t web_server = NULL;
 
   esp_err_t err = nvs_flash_init();
@@ -252,6 +267,10 @@ extern "C" void app_main()
 
   ESP_LOGI(kTagMain, "Connected! IP acquired.");
 
+#if !defined(NDEBUG)
+  start_udp_logging(514);
+#endif
+
   // Start the webserver
   web_server = start_webserver();
 
@@ -269,10 +288,58 @@ extern "C" void app_main()
     }
   }
 
+  {
+    const esp_timer_create_args_t timer_args = {.callback = &my_timer_callback,
+                                                .arg = nullptr,
+                                                .dispatch_method =
+                                                    ESP_TIMER_TASK,
+                                                .name = "Led Turn Off",
+                                                .skip_unhandled_events = true};
+
+    // Create and start timer if needed, or this was just stub code?
+    esp_timer_handle_t timer_handle;
+    if (esp_timer_create(&timer_args, &timer_handle) == ESP_OK)
+    {
+      esp_timer_start_once(timer_handle, 5'000'000); // 5 sec cooldown
+    }
+  }
+
   // Keep the main task alive indefinitely
+  {
+#if CONFIG_PM_PROFILING
+    int pm_dump_counter = 0;
+#endif
     while (true)
     {
-    vTaskDelay(pdMS_TO_TICKS(1000));
+      vTaskDelay(pdMS_TO_TICKS(100));
+
+#if CONFIG_PM_PROFILING
+      if (++pm_dump_counter >= 50)
+      { // Every 5 seconds
+        pm_dump_counter = 0;
+        ESP_LOGI(kTagMain, "--- PM Profiling Dump ---");
+
+        char *ptr = nullptr;
+        size_t size = 0;
+        FILE *f = open_memstream(&ptr, &size);
+        if (f != nullptr)
+        {
+          esp_pm_dump_locks(f);
+          fclose(f);
+          if (ptr != nullptr)
+          {
+            char *saveptr;
+            char *line = strtok_r(ptr, "\n", &saveptr);
+            while (line != nullptr) {
+                ESP_LOGI(kTagMain, "%s", line);
+                line = strtok_r(nullptr, "\n", &saveptr);
+            }
+            free(ptr);
+          }
+        }
+      }
+#endif
+    }
   }
 
 shutdown:

Provider/main/udp_logger.cpp

@@ -0,0 +1,71 @@
+#include <string.h>
+
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "lwip/sockets.h"
+
+#include "types.hpp"
+
+internal constexpr char kTagUdpLogger[] = "UDP_LOG";
+
+internal int s_udp_log_socket = -1;
+internal struct sockaddr_in s_udp_dest_addr;
+internal vprintf_like_t s_original_vprintf = NULL;
+
+internal int udp_logging_vprintf(const char *fmt, va_list ap)
+{
+  char buf[512];
+  va_list ap_copy;
+  va_copy(ap_copy, ap);
+  int len = vsnprintf(buf, sizeof(buf) - 1, fmt, ap_copy);
+  va_end(ap_copy);
+
+  if (len > 0)
+  {
+    if (len >= sizeof(buf))
+    {
+      len = sizeof(buf) - 1;
+    }
+    buf[len] = '\0';
+    if (s_udp_log_socket >= 0)
+    {
+      sendto(s_udp_log_socket, buf, len, 0, (struct sockaddr *)&s_udp_dest_addr,
+             sizeof(s_udp_dest_addr));
+    }
+  }
+  return s_original_vprintf(fmt, ap);
+}
+
+internal void start_udp_logging(int port)
+{
+  s_udp_log_socket = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
+  if (s_udp_log_socket < 0)
+  {
+    ESP_LOGE(kTagUdpLogger, "Unable to create socket: errno %d", errno);
+    return;
+  }
+
+  int opt_val = 1;
+  setsockopt(s_udp_log_socket, SOL_SOCKET, SO_BROADCAST, &opt_val,
+             sizeof(opt_val));
+
+  s_udp_dest_addr.sin_family = AF_INET;
+  s_udp_dest_addr.sin_port = htons(port);
+
+#ifdef CONFIG_CALENDINK_UDP_LOG_TARGET_IP
+  if (strlen(CONFIG_CALENDINK_UDP_LOG_TARGET_IP) > 1)
+  {
+    s_udp_dest_addr.sin_addr.s_addr =
+        inet_addr(CONFIG_CALENDINK_UDP_LOG_TARGET_IP);
+  }
+  else
+  {
+    s_udp_dest_addr.sin_addr.s_addr = inet_addr("255.255.255.255");
+  }
+#else
+  s_udp_dest_addr.sin_addr.s_addr = inet_addr("255.255.255.255");
+#endif
+
+  s_original_vprintf = esp_log_set_vprintf(&udp_logging_vprintf);
+  ESP_LOGI(kTagUdpLogger, "UDP logging broadcast started on port %d", port);
+}

Provider/sdkconfig.defaults

@@ -2,3 +2,5 @@ CONFIG_PARTITION_TABLE_CUSTOM=y
 CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
 CONFIG_PARTITION_TABLE_FILENAME="partitions.csv"
 CONFIG_LWIP_MAX_SOCKETS=32
+CONFIG_PM_ENABLE=y
+CONFIG_FREERTOS_USE_TICKLESS_IDLE=y