oled shows temp correctly

thermo_sensor/main/thermo_sensor.c

@@ -1,6 +1,8 @@
+#include <stdio.h>
 #include <freertos/FreeRTOS.h>
 #include <freertos/task.h>
 #include <esp_system.h>
+#include <esp_timer.h>
 
 #include "nvs_flash.h"
 #include "esp_http_server.h"
@@ -21,17 +23,32 @@ static lv_display_t *sh_display = NULL;
 static lv_obj_t *label = NULL;
 bmp280_t dev_bmp_280;
 
-void main_loop(void *pvParameters) {
+static void lvgl_tick_cb(void *arg) {
+    lv_tick_inc(10);
+}
+
+void lvgl_task(void *pvParameters) {
+    while (1) {
+        lv_timer_handler();
+        vTaskDelay(pdMS_TO_TICKS(10));
+    }
+}
+
+void sensor_task(void *pvParameters) {
     // Wait 1s, to avoid corrupted first sensor readout
     vTaskDelay(pdMS_TO_TICKS(1000));
     while (1) {
-        lv_timer_handler();
-        ygg_bmp280_read_sensor(&dev_bmp_280); 
+        ygg_bmp280_read_sensor(&dev_bmp_280);
+        // Najpierw OLED, potem (blokujący) HTTP — żeby ekran
+        // odświeżył się nawet gdy serwer nie odpowiada.
+        char buf[32];
+        snprintf(buf, sizeof(buf), "Temp: %.2f C",
+                 CURR_READOUT.temperature);
+        ygg_set_display_label(sh_display, label, buf);
         ygg_send_sensor_readouts(BASE_URL,
                                  SENSOR_NAME,
                                  CURR_READOUT);
         vTaskDelay(pdMS_TO_TICKS(10000));
-        ygg_set_display_label(sh_display, label, "ANOTHER");
     }
 }
 
@@ -65,11 +82,22 @@ void app_main()
     ESP_ERROR_CHECK(i2cdev_init());
     
     sh_display = ygg_sh1106_init();
+    // LVGL potrzebuje regularnego ticka, inaczej redraw nigdy się nie wykona
+    // (to był powód, dla którego wisiało "FIRST").
+    const esp_timer_create_args_t lvgl_tick_args = {
+        .callback = lvgl_tick_cb,
+        .name = "lvgl_tick",
+    };
+    esp_timer_handle_t lvgl_tick_handle = NULL;
+    ESP_ERROR_CHECK(esp_timer_create(&lvgl_tick_args, &lvgl_tick_handle));
+    ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_handle, 10 * 1000));
+
     lv_obj_t *scr = lv_display_get_screen_active(sh_display);
     label = lv_label_create(scr);
     ygg_set_display_label(sh_display, label, "FIRST");
 
     ygg_bmp280_init(&dev_bmp_280);
-    xTaskCreatePinnedToCore(main_loop, "bmp280_test", configMINIMAL_STACK_SIZE * 8, NULL, 5, NULL, APP_CPU_NUM);
+    xTaskCreatePinnedToCore(lvgl_task, "lvgl", 4096, NULL, 4, NULL, APP_CPU_NUM);
+    xTaskCreatePinnedToCore(sensor_task, "bmp280_test", 8192, NULL, 5, NULL, APP_CPU_NUM);
 }