Add helloworld example

.github/workflows/arduino_ci.yml

@@ -22,6 +22,7 @@ jobs:
             examples/BatteryVoltage/BatteryVoltage.ino,
             examples/lv_benchmark/lv_benchmark.ino,
             examples/lv_factory/lv_factory.ino,
+            examples/lv_helloworld/lv_helloworld.ino,
             examples/lv_gif/lv_gif.ino,
             examples/lv_images/lv_images.ino,
             examples/lv_music/lv_music.ino,

.github/workflows/pio.yml

@@ -21,6 +21,7 @@ jobs:
             examples/BatteryVoltage,
             examples/lv_benchmark,
             examples/lv_factory,
+            examples/lv_helloworld,
             examples/lv_gif,
             examples/lv_images,
             examples/lv_music,

README.md

@@ -37,6 +37,7 @@ examples/
 ├── RGBPanel                    # lvgl test example
 ├── TFT_eSPI_Sprite             # TFT_eSPI Sprite Example
 ├── Touchpad                    # Capacitive touch example
+├── lv_helloworld               # lvgl get started
 ├── lv_benchmark                # lvgl benchmark  example
 ├── lv_factory                  # factory example
 ├── lv_gif                      # lvgl gif decoding example

examples/lv_helloworld/lv_helloworld.ino

@@ -0,0 +1,85 @@
+/**
+ * @file      lv_helloworld.ino
+ * @author    Lewis He ([email protected])
+ * @license   MIT
+ * @copyright Copyright (c) 2024  Shenzhen Xin Yuan Electronic Technology Co., Ltd
+ * @date      2024-01-27
+ */
+
+#include <LilyGo_RGBPanel.h>
+#include <LV_Helper.h>
+
+LilyGo_RGBPanel panel;
+
+static void btn_event_cb(lv_event_t *e)
+{
+    lv_event_code_t code = lv_event_get_code(e);
+    lv_obj_t *btn = lv_event_get_target(e);
+    if (code == LV_EVENT_CLICKED) {
+        static uint8_t cnt = 0;
+        cnt++;
+        /*Get the first child of the button which is the label and change its text*/
+        lv_obj_t *label = lv_obj_get_child(btn, 0);
+        lv_label_set_text_fmt(label, "Button: %d", cnt);
+        Serial.printf("Button :%d\n", cnt);
+    }
+}
+
+void setup()
+{
+    Serial.begin(115200);
+
+
+    // Initialize T-RGB, if the initialization fails, false will be returned.
+    if (!panel.begin()) {
+        while (1) {
+            Serial.println("Error, failed to initialize T-RGB"); delay(1000);
+        }
+    }
+
+    // Call lvgl initialization
+    beginLvglHelper(panel);
+
+
+    lv_obj_t *label = lv_label_create(lv_scr_act());        /*Add a label the current screen*/
+    lv_label_set_text(label, "Hello World");                 /*Set label text*/
+    lv_obj_center(label);                                   /*Set center alignment*/
+
+
+    lv_obj_t *btn = lv_btn_create(lv_scr_act());            /*Add a button the current screen*/
+    lv_obj_set_size(btn, 120, 50);                          /*Set its size*/
+    lv_obj_add_event_cb(btn, btn_event_cb, LV_EVENT_ALL, NULL);  /*Assign a callback to the button*/
+    lv_obj_align_to(btn, label, LV_ALIGN_OUT_BOTTOM_MID, 0, 0); /*Set the label to it and align it in the center below the label*/
+
+    lv_obj_t *btn_label = lv_label_create(btn);           /*Add a label to the button*/
+    lv_label_set_text(btn_label, "Button");               /*Set the labels text*/
+    lv_obj_center(btn_label);
+
+    // Turn on the backlight and set it to the highest value, ranging from 0 to 16
+    panel.setBrightness(16);
+}
+
+
+void loop()
+{
+    // lvgl task processing should be placed in the loop function
+    lv_timer_handler();
+    delay(2);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

platformio.ini

@@ -10,13 +10,14 @@
 
 [platformio]
 
-src_dir = examples/lv_factory
+; src_dir = examples/lv_factory
 ; src_dir = examples/lv_benchmark
 ; src_dir = examples/lv_music
 ; src_dir = examples/lv_images
 ; src_dir = examples/lv_gif
 ; src_dir = examples/lv_qrcode
 ; src_dir = examples/TFT_eSPI_Sprite
+src_dir = examples/lv_helloworld
 
 ; src_dir = examples/RGBPanel
 ; src_dir = examples/Touchpad
@@ -31,7 +32,6 @@ boards_dir = boards
 
 [env:T-RGB]
 lib_extra_dirs = ${PROJECT_DIR} 
-lib_ignore = lib_deps
 platform = [email protected]
 board = LilyGo-T-RGB
 framework = arduino
@@ -48,10 +48,10 @@ build_flags =
     -DLV_CONF_SUPPRESS_DEFINE_CHECK
 
     ; Enable UARDUINO_USB_CDC_ON_BOOT will start printing and wait for terminal access during startup
-    ; -DARDUINO_USB_CDC_ON_BOOT=1
+    -DARDUINO_USB_CDC_ON_BOOT=1
 
     ; Enable UARDUINO_USB_CDC_ON_BOOT will turn off printing and will not block when using the battery
-    -UARDUINO_USB_CDC_ON_BOOT
+    ; -UARDUINO_USB_CDC_ON_BOOT
 
 
     -DCORE_DEBUG_LEVEL=0