loading date/time via SNTP

Signed-off-by: Peter Siegmund <peter@rdkr.com>

ePaper-ESP-IDF/Makefile

@@ -1,2 +1,3 @@
+download_map:
 	curl -o ./data/staticmap.png https://maps.googleapis.com/maps/api/staticmap\?center\=53.541962,%209.993402\&zoom\=15\&size\=540x540\&key\=AIzaSyARgP_FKFXsrcgVd_HVWoIfH5N8-a88wlQ\&map_id\=2f371c2346218fe8 
 	python imgconvert.py -i ./data/staticmap.png -o components/mapView/include/staticmap.h -n staticmap

ePaper-ESP-IDF/components/connectivity/CMakeLists.txt

@@ -1,5 +1,6 @@
-idf_component_register(SRCS "connectivity.c"
+idf_component_register(SRCS "connectivity.c" "ntp.c"
                     INCLUDE_DIRS "include"
                     PRIV_REQUIRES 
                         esp_event
-                        esp_wifi)
+                        esp_wifi
+                        nvs_flash)

ePaper-ESP-IDF/components/connectivity/include/ntp.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "esp_err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+esp_err_t init_ntp(void);
+#ifdef __cplusplus
+}
+#endif

ePaper-ESP-IDF/components/connectivity/ntp.c

@@ -0,0 +1,76 @@
+#include "ntp.h"
+
+#include <string.h>
+#include <sys/time.h>
+#include <time.h>
+#include "esp_attr.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "esp_netif_sntp.h"
+#include "esp_sleep.h"
+#include "esp_sntp.h"
+#include "esp_system.h"
+#include "lwip/ip_addr.h"
+#include "nvs_flash.h"
+
+#include "sdkconfig.h"
+
+static const char* TAG = "NTP";
+
+void obtain_time(void) {
+  ESP_LOGI(TAG, "Initializing SNTP");
+
+  esp_sntp_config_t config =
+      ESP_NETIF_SNTP_DEFAULT_CONFIG(CONFIG_SNTP_TIME_SERVER);
+  config.start = false;
+  config.server_from_dhcp = true;
+  config.renew_servers_after_new_IP = true;
+  config.index_of_first_server = 1;
+  config.ip_event_to_renew = IP_EVENT_STA_GOT_IP;
+  esp_netif_sntp_init(&config);
+
+  ESP_LOGI(TAG, "Starting SNTP");
+  esp_netif_sntp_start();
+
+  // wait for time to be set
+  time_t now = 0;
+  struct tm timeinfo = {0};
+  int retry = 0;
+  const int retry_count = 15;
+  while (esp_netif_sntp_sync_wait(2000 / portTICK_PERIOD_MS) ==
+             ESP_ERR_TIMEOUT &&
+         ++retry < retry_count) {
+    ESP_LOGI(TAG, "Waiting for system time to be set... (%d/%d)", retry,
+             retry_count);
+  }
+  time(&now);
+  localtime_r(&now, &timeinfo);
+
+  esp_netif_sntp_deinit();
+}
+
+esp_err_t init_ntp(void) {
+  time_t now;
+  struct tm timeinfo;
+  time(&now);
+  localtime_r(&now, &timeinfo);
+
+  if (timeinfo.tm_year < (2016 - 1900)) {
+    ESP_LOGI(
+        TAG,
+        "Time is not set yet. Connecting to WiFi and getting time over NTP.");
+    obtain_time();
+  }
+
+  char strftime_buf[64];
+
+  // Set timezone to Eastern Standard Time and print local time
+  setenv("TZ", "CET-1CEST,M3.5.0,M10.5.0/3", 1);
+  tzset();
+  time(&now);
+  localtime_r(&now, &timeinfo);
+  strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
+  ESP_LOGI(TAG, "The current date/time in Berlin/Europe is: %s", strftime_buf);
+
+  return ESP_OK;
+}

ePaper-ESP-IDF/components/mapView/ip-info.http

@@ -1 +0,0 @@
-GET https://ipapi.co/json

ePaper-ESP-IDF/components/mapView/mapView.cpp

@@ -1,9 +1,12 @@
 #include "mapView.h"
 
 #include <esp_task_wdt.h>
+#include <sys/time.h>
+#include <time.h>
 #include <cstring>
 #include <string>
 #include "epd_driver.h"
+#include "fonts/opensans12b.h"
 #include "fonts/opensans26b.h"
 #include "fonts/opensans6.h"
 #include "staticmap.h"
@@ -52,6 +55,7 @@ void mapView(void* args) {
 
   std::memset(framebuffer, 0xFF, EPD_WIDTH * EPD_HEIGHT / 2);
 
+  while (1) {
     int32_t width = staticmap_width;
     int32_t height = staticmap_height;
     const uint8_t* data = staticmap_data;
@@ -62,9 +66,19 @@ void mapView(void* args) {
     epd_draw_rect(area.x, area.y, area.width, area.height, 0, framebuffer);
 
     int32_t x = area.x / 2;
-  int32_t y = area.height / 2 - 26;
+    int32_t y = 26;
     currentFont = OpenSans26B;
-  drawString(x, y, "Hello, World!", CENTER);
+    drawString(x, y, "Tide Display", CENTER);
+
+    time_t now;
+    struct tm timeinfo;
+    char strftime_buf[64];
+
+    currentFont = OpenSans12B;
+    time(&now);
+    localtime_r(&now, &timeinfo);
+    strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
+    drawString(6, area.height - 33, strftime_buf, LEFT);
 
     drawVessel(EPD_WIDTH - EPD_WIDTH / 4, EPD_HEIGHT - EPD_HEIGHT / 5,
                "DEEPENSCHRIEWER 1");
@@ -74,7 +88,6 @@ void mapView(void* args) {
     epd_draw_grayscale_image(epd_full_screen(), framebuffer);
     epd_poweroff_all();
 
-  while (1) {
+    vTaskDelay(pdMS_TO_TICKS(60000));
-    vTaskDelay(pdMS_TO_TICKS(100));
   }
 }

ePaper-ESP-IDF/components/splash_screen/splash_screen.c

@@ -1,8 +1,10 @@
 #include "splash_screen.h"
+#include <esp_task_wdt.h>
 #include <stdio.h>
 #include "connectivity.h"
 #include "epd_driver.h"
 #include "fonts/opensans16.h"
+#include "ntp.h"
 #include "nvs_flash.h"
 #include "sdkconfig.h"
 
@@ -17,14 +19,15 @@ void nvs_init(void) {
 }
 
 void wifi_init(void) {
-  epd_poweron();
   epd_clear();
+
   int32_t x = 100;
   int32_t y = 100;
   const int16_t bufferSize = 200;
   char buffer[bufferSize];
   snprintf(buffer, bufferSize, "Connecting to SSDI: %s", CONFIG_WIFI_SSID);
   writeln(&OpenSans16, buffer, &x, &y, NULL);
+
   esp_err_t ret = init_wifi();
   if (ret != ESP_OK) {
     epd_clear();
@@ -35,14 +38,44 @@ void wifi_init(void) {
     writeln(&OpenSans16, buffer, &x, &y, NULL);
     epd_poweroff();
     while (1) {
-      ///
+      vTaskDelay(pdMS_TO_TICKS(100));
     };
   }
+}
+
+void time_init(void) {
+  epd_clear();
+
+  int32_t x = 100;
+  int32_t y = 100;
+  const int16_t bufferSize = 200;
+  char buffer[bufferSize];
+  snprintf(buffer, bufferSize, "Loading NTP Data...");
+  writeln(&OpenSans16, buffer, &x, &y, NULL);
+
+  esp_err_t ret = init_ntp();
+  if (ret != ESP_OK) {
+    epd_clear();
+    x = 100;
+    y = 100;
+    snprintf(buffer, bufferSize, "Failed to get NTP data and timezone: %s",
+             esp_err_to_name(ret));
+    writeln(&OpenSans16, buffer, &x, &y, NULL);
     epd_poweroff();
+    while (1) {
+      vTaskDelay(pdMS_TO_TICKS(100));
+    };
+  }
 }
 
 void splash_screen(void) {
   epd_init();
   nvs_init();
+
+  epd_poweron();
+
   wifi_init();
+  time_init();
+
+  epd_poweroff();
 }

ePaper-ESP-IDF/dependencies.lock

@@ -1,15 +1,21 @@
 dependencies:
   espressif/zlib:
     component_hash: 999ec50086ac1c82b8321d8f540dc9fd10f5622948b935558aa16b4b66e95d9d
+    dependencies:
+    - name: idf
+      require: private
+      version: '>=4.4'
     source:
-      service_url: https://api.components.espressif.com/
+      registry_url: https://components.espressif.com/
       type: service
     version: 1.3.0
   idf:
-    component_hash: null
     source:
       type: idf
-    version: 5.2.1
+    version: 5.2.2
-manifest_hash: 9fe7e2c77ea407d47f07333832a5be5b87fc9871227faa74633b17f8cd0fd0c1
+direct_dependencies:
+- espressif/zlib
+- idf
+manifest_hash: 7fd1b00bda391a50c91df72443d14b974ce16be6bfa2efdabe51083d3a6e3185
 target: esp32s3
-version: 1.0.0
+version: 2.0.0

ePaper-ESP-IDF/main/Kconfig.projbuild

@@ -21,6 +21,14 @@ menu "Tide Display Setting"
                 inexistent.
     endmenu
 
+    menu "Time Configuration"
+        config SNTP_TIME_SERVER
+            string "SNTP server name"
+            default "pool.ntp.org"
+            help
+                Hostname of the main SNTP server.
+    endmenu
+
     menu "Map"
         choice "Map Provider"
             prompt "Map Provider"

ePaper-ESP-IDF/sdkconfig.defaults

@@ -20,6 +20,12 @@ CONFIG_SPIRAM_MODE_OCT=y
 CONFIG_PARTITION_TABLE_CUSTOM=y
 CONFIG_PARTITION_TABLE_FILENAME="partitions.csv"
 
+#
+# SNTP
+#
+CONFIG_LWIP_DHCP_GET_NTP_SRV=y
+CONFIG_LWIP_DHCP_MAX_NTP_SERVERS=1
+
 #
 # ESP System Settings
 #