添加智能灯固件代码

firmware/esp-idf/wumei-smart-firmware/examples/protocols/sntp/main/CMakeLists.txt

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+idf_component_register(SRCS "sntp_example_main.c"
+                    INCLUDE_DIRS ".")

firmware/esp-idf/wumei-smart-firmware/examples/protocols/sntp/main/Kconfig.projbuild

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+menu "Example Configuration"
+
+    choice SNTP_TIME_SYNC_METHOD
+        prompt "Time synchronization method"
+        default SNTP_TIME_SYNC_METHOD_IMMED
+        help
+            Time synchronization method.
+
+        config SNTP_TIME_SYNC_METHOD_IMMED
+            bool "update time immediately when received"
+        config SNTP_TIME_SYNC_METHOD_SMOOTH
+            bool "update time with smooth method (adjtime)"
+        config SNTP_TIME_SYNC_METHOD_CUSTOM
+            bool "custom implementation"
+    endchoice
+
+endmenu

firmware/esp-idf/wumei-smart-firmware/examples/protocols/sntp/main/component.mk

@@ -0,0 +1,4 @@
+#
+# "main" pseudo-component makefile.
+#
+# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)

firmware/esp-idf/wumei-smart-firmware/examples/protocols/sntp/main/sntp_example_main.c

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+/* LwIP SNTP example
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+#include <string.h>
+#include <time.h>
+#include <sys/time.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/event_groups.h"
+#include "esp_system.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "esp_attr.h"
+#include "esp_sleep.h"
+#include "nvs_flash.h"
+#include "protocol_examples_common.h"
+#include "esp_sntp.h"
+
+static const char *TAG = "example";
+
+/* Variable holding number of times ESP32 restarted since first boot.
+ * It is placed into RTC memory using RTC_DATA_ATTR and
+ * maintains its value when ESP32 wakes from deep sleep.
+ */
+RTC_DATA_ATTR static int boot_count = 0;
+
+static void obtain_time(void);
+static void initialize_sntp(void);
+
+#ifdef CONFIG_SNTP_TIME_SYNC_METHOD_CUSTOM
+void sntp_sync_time(struct timeval *tv)
+{
+   settimeofday(tv, NULL);
+   ESP_LOGI(TAG, "Time is synchronized from custom code");
+   sntp_set_sync_status(SNTP_SYNC_STATUS_COMPLETED);
+}
+#endif
+
+void time_sync_notification_cb(struct timeval *tv)
+{
+    ESP_LOGI(TAG, "Notification of a time synchronization event");
+}
+
+void app_main(void)
+{
+    ++boot_count;
+    ESP_LOGI(TAG, "Boot count: %d", boot_count);
+
+    time_t now;
+    struct tm timeinfo;
+    time(&now);
+    localtime_r(&now, &timeinfo);
+    // Is time set? If not, tm_year will be (1970 - 1900).
+    if (timeinfo.tm_year < (2016 - 1900)) {
+        ESP_LOGI(TAG, "Time is not set yet. Connecting to WiFi and getting time over NTP.");
+        obtain_time();
+        // update 'now' variable with current time
+        time(&now);
+    }
+#ifdef CONFIG_SNTP_TIME_SYNC_METHOD_SMOOTH
+    else {
+        // add 500 ms error to the current system time.
+        // Only to demonstrate a work of adjusting method!
+        {
+            ESP_LOGI(TAG, "Add a error for test adjtime");
+            struct timeval tv_now;
+            gettimeofday(&tv_now, NULL);
+            int64_t cpu_time = (int64_t)tv_now.tv_sec * 1000000L + (int64_t)tv_now.tv_usec;
+            int64_t error_time = cpu_time + 500 * 1000L;
+            struct timeval tv_error = { .tv_sec = error_time / 1000000L, .tv_usec = error_time % 1000000L };
+            settimeofday(&tv_error, NULL);
+        }
+
+        ESP_LOGI(TAG, "Time was set, now just adjusting it. Use SMOOTH SYNC method.");
+        obtain_time();
+        // update 'now' variable with current time
+        time(&now);
+    }
+#endif
+
+    char strftime_buf[64];
+
+    // Set timezone to Eastern Standard Time and print local time
+    setenv("TZ", "EST5EDT,M3.2.0/2,M11.1.0", 1);
+    tzset();
+    localtime_r(&now, &timeinfo);
+    strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
+    ESP_LOGI(TAG, "The current date/time in New York is: %s", strftime_buf);
+
+    // Set timezone to China Standard Time
+    setenv("TZ", "CST-8", 1);
+    tzset();
+    localtime_r(&now, &timeinfo);
+    strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
+    ESP_LOGI(TAG, "The current date/time in Shanghai is: %s", strftime_buf);
+
+    if (sntp_get_sync_mode() == SNTP_SYNC_MODE_SMOOTH) {
+        struct timeval outdelta;
+        while (sntp_get_sync_status() == SNTP_SYNC_STATUS_IN_PROGRESS) {
+            adjtime(NULL, &outdelta);
+            ESP_LOGI(TAG, "Waiting for adjusting time ... outdelta = %li sec: %li ms: %li us",
+                        (long)outdelta.tv_sec,
+                        outdelta.tv_usec/1000,
+                        outdelta.tv_usec%1000);
+            vTaskDelay(2000 / portTICK_PERIOD_MS);
+        }
+    }
+
+    const int deep_sleep_sec = 10;
+    ESP_LOGI(TAG, "Entering deep sleep for %d seconds", deep_sleep_sec);
+    esp_deep_sleep(1000000LL * deep_sleep_sec);
+}
+
+static void obtain_time(void)
+{
+    ESP_ERROR_CHECK( nvs_flash_init() );
+    ESP_ERROR_CHECK(esp_netif_init());
+    ESP_ERROR_CHECK( esp_event_loop_create_default() );
+
+    /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
+     * Read "Establishing Wi-Fi or Ethernet Connection" section in
+     * examples/protocols/README.md for more information about this function.
+     */
+    ESP_ERROR_CHECK(example_connect());
+
+    initialize_sntp();
+
+    // wait for time to be set
+    time_t now = 0;
+    struct tm timeinfo = { 0 };
+    int retry = 0;
+    const int retry_count = 10;
+    while (sntp_get_sync_status() == SNTP_SYNC_STATUS_RESET && ++retry < retry_count) {
+        ESP_LOGI(TAG, "Waiting for system time to be set... (%d/%d)", retry, retry_count);
+        vTaskDelay(2000 / portTICK_PERIOD_MS);
+    }
+    time(&now);
+    localtime_r(&now, &timeinfo);
+
+    ESP_ERROR_CHECK( example_disconnect() );
+}
+
+static void initialize_sntp(void)
+{
+    ESP_LOGI(TAG, "Initializing SNTP");
+    sntp_setoperatingmode(SNTP_OPMODE_POLL);
+    sntp_setservername(0, "pool.ntp.org");
+    sntp_set_time_sync_notification_cb(time_sync_notification_cb);
+#ifdef CONFIG_SNTP_TIME_SYNC_METHOD_SMOOTH
+    sntp_set_sync_mode(SNTP_SYNC_MODE_SMOOTH);
+#endif
+    sntp_init();
+}