starting with launch screen

include/gfx/lgfx.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#define LGFX_USE_V1
+
+#include <LovyanGFX.hpp>
+
+class LGFX : public lgfx::LGFX_Device
+{
+private:
+    lgfx::Panel_ST7796 _panel_instance;
+    lgfx::Bus_Parallel8 _bus_instance;
+    lgfx::Light_PWM _light_instance;
+    lgfx::Touch_FT5x06 _touch_instance;
+
+public:
+    LGFX();
+};

include/gfx/lv_setup.h

@@ -0,0 +1,4 @@
+#pragma once
+
+void lv_begin();
+void lv_handler();

include/ui/launch_screen.h

@@ -0,0 +1,3 @@
+#pragma once
+
+void ui_LaunchScreen_open();

platformio.ini

@@ -36,4 +36,4 @@ lib_ldf_mode = deep
 lib_deps = 
     me-no-dev/AsyncTCP @ ^1.1.1
 	lovyan03/LovyanGFX @ ^1.1.8
-	lvgl/lvgl @ ^8.3.7
+	lvgl/lvgl @ ^8.3.9

src/gfx/lgfx.cpp

@@ -0,0 +1,83 @@
+#include "gfx/lgfx.h"
+
+LGFX::LGFX()
+{
+    {
+        auto cfg = _bus_instance.config();
+
+        // cfg.i2s_port = I2S_NUM_0;
+        cfg.freq_write = 20000000;
+        cfg.pin_wr = 47;
+        cfg.pin_rd = -1;
+        cfg.pin_rs = 0;
+        cfg.pin_d0 = 9;
+        cfg.pin_d1 = 46;
+        cfg.pin_d2 = 3;
+        cfg.pin_d3 = 8;
+        cfg.pin_d4 = 18;
+        cfg.pin_d5 = 17;
+        cfg.pin_d6 = 16;
+        cfg.pin_d7 = 15;
+
+        _bus_instance.config(cfg);
+        _panel_instance.setBus(&_bus_instance);
+    }
+
+    {
+        auto cfg = _panel_instance.config();
+
+        cfg.pin_cs = -1;
+        cfg.pin_rst = 4;
+        cfg.pin_busy = -1;
+        cfg.panel_width = SCREEN_HEIGHT;
+        cfg.panel_height = SCREEN_WIDTH;
+        cfg.offset_x = 0;
+        cfg.offset_y = 0;
+        cfg.offset_rotation = 0;
+        cfg.dummy_read_pixel = 8;
+        cfg.dummy_read_bits = 1;
+        cfg.readable = true;
+        cfg.invert = true;
+        cfg.rgb_order = false;
+        cfg.dlen_16bit = false;
+        cfg.bus_shared = true;
+        cfg.memory_width = SCREEN_HEIGHT;
+        cfg.memory_height = SCREEN_WIDTH;
+
+        _panel_instance.config(cfg);
+    }
+
+    {
+        auto cfg = _light_instance.config();
+
+        cfg.pin_bl = 45;
+        cfg.invert = false;
+        cfg.freq = 44100;
+        cfg.pwm_channel = 7;
+
+        _light_instance.config(cfg);
+        _panel_instance.setLight(&_light_instance);
+    }
+
+    {
+        auto cfg = _touch_instance.config();
+
+        cfg.x_min = 0;
+        cfg.x_max = 319;
+        cfg.y_min = 0;
+        cfg.y_max = 479;
+        cfg.pin_int = 7;
+        cfg.bus_shared = true;
+        cfg.offset_rotation = 0;
+        cfg.i2c_port = 1;
+        cfg.i2c_addr = 0x38;
+        cfg.pin_sda = 6;
+        cfg.pin_scl = 5;
+        cfg.freq = 400000;
+
+        _touch_instance.config(cfg);
+        _panel_instance.setTouch(&_touch_instance);
+    }
+
+    setPanel(&_panel_instance);
+}

src/gfx/lv_setup.cpp

@@ -0,0 +1,84 @@
+#include "gfx/lv_setup.h"
+
+#include <lvgl.h>
+#include <gfx/lgfx.h>
+
+#define LV_BUF_SIZE (SCREEN_WIDTH * SCREEN_HEIGHT)
+
+LGFX tft;
+
+void lv_handler()
+{
+    static uint32_t previousUpdate = 0;
+    static uint32_t interval = 0;
+
+    if (millis() - previousUpdate > interval)
+    {
+        previousUpdate = millis();
+        interval = lv_timer_handler(); // Update the UI
+    }
+}
+
+void flush_cb(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p)
+{
+    uint32_t w = (area->x2 - area->x1 + 1);
+    uint32_t h = (area->y2 - area->y1 + 1);
+
+    tft.startWrite();
+    tft.setAddrWindow(area->x1, area->y1, w, h);
+    tft.writePixels((lgfx::rgb565_t *)&color_p->full, w * h);
+    tft.endWrite();
+
+    lv_disp_flush_ready(disp);
+}
+
+void read_cb(lv_indev_drv_t *indev_driver, lv_indev_data_t *data)
+{
+    uint16_t touchX, touchY;
+    bool touched = tft.getTouch(&touchX, &touchY);
+    if (touched)
+    {
+        data->point.x = touchX;
+        data->point.y = touchY;
+        data->state = LV_INDEV_STATE_PR;
+    }
+    else
+    {
+        data->state = LV_INDEV_STATE_REL;
+    }
+}
+
+void print_cb(const char *buf)
+{
+    log_d("%s", buf);
+}
+
+void lv_begin()
+{
+    tft.init();
+    tft.setRotation(1);
+
+    lv_log_register_print_cb(print_cb);
+
+    lv_init();
+
+    static lv_disp_draw_buf_t draw_buf;
+    static lv_color_t *buf1, *buf2;
+    buf1 = (lv_color_t *)heap_caps_malloc(LV_BUF_SIZE * sizeof(lv_color_t), MALLOC_CAP_8BIT | MALLOC_CAP_SPIRAM);
+    buf2 = (lv_color_t *)heap_caps_malloc(LV_BUF_SIZE * sizeof(lv_color_t), MALLOC_CAP_8BIT | MALLOC_CAP_SPIRAM);
+    lv_disp_draw_buf_init(&draw_buf, buf1, buf2, LV_BUF_SIZE);
+
+    static lv_disp_drv_t disp_drv;
+    lv_disp_drv_init(&disp_drv);
+    disp_drv.hor_res = SCREEN_WIDTH;
+    disp_drv.ver_res = SCREEN_HEIGHT;
+    disp_drv.flush_cb = flush_cb;
+    disp_drv.draw_buf = &draw_buf;
+    lv_disp_drv_register(&disp_drv);
+
+    static lv_indev_drv_t indev_drv;
+    lv_indev_drv_init(&indev_drv);
+    indev_drv.type = LV_INDEV_TYPE_POINTER;
+    indev_drv.read_cb = read_cb;
+    lv_indev_drv_register(&indev_drv);
+}

src/main.cpp

@@ -18,22 +18,16 @@
 //----------------------------------------------------------------------------
 #include <Arduino.h>
 
-// put function declarations here:
+#include "gfx/lv_setup.h"
-int myFunction(int, int);
+#include "ui/launch_screen.h"
 
 void setup()
 {
-  // put your setup code here, to run once:
+  lv_begin();
-  int result = myFunction(2, 3);
+  ui_LaunchScreen_open();
 }
 
 void loop()
 {
-  // put your main code here, to run repeatedly:
+  lv_handler();
-}
-
-// put function definitions here:
-int myFunction(int x, int y)
-{
-  return x + y;
 }

src/ui/launch_screen.cpp

@@ -0,0 +1,22 @@
+#include "ui/launch_screen.h"
+
+#include <lvgl.h>
+
+lv_obj_t *ui_SplashScreen;
+
+void ui_LaunchScreen_open()
+{
+    // Create a screen
+    ui_SplashScreen = lv_obj_create(NULL);
+    lv_obj_clear_flag(ui_SplashScreen, LV_OBJ_FLAG_SCROLLABLE);
+    lv_obj_set_style_bg_color(ui_SplashScreen, lv_color_make(0x78, 0x94, 0xa7), 0);
+
+    // Create a label
+    lv_obj_t *label = lv_label_create(ui_SplashScreen);
+    lv_label_set_text(label, "Hello world!");
+
+    // Align the label to the center
+    lv_obj_align(label, NULL, LV_ALIGN_CENTER, 0);
+
+    lv_disp_load_scr(ui_SplashScreen);
+}