/*Using LVGL with Arduino requires some extra steps: *Be sure to read the docs here: https://docs.lvgl.io/master/get-started/platforms/arduino.html */ #ifdef LVGL_ARDUINO_GFX #include /*To use the built-in examples and demos of LVGL uncomment the includes below respectively. *You also need to copy `lvgl/examples` to `lvgl/src/examples`. Similarly for the demos `lvgl/demos` to `lvgl/src/demos`. *Note that the `lv_examples` library is for LVGL v7 and you shouldn't install it for this version (since LVGL v8) *as the examples and demos are now part of the main LVGL library. */ // #include // #include // #define DIRECT_MODE // Uncomment to enable full frame buffer /******************************************************************************* * Start of Arduino_GFX setting * * Arduino_GFX try to find the settings depends on selected board in Arduino IDE * Or you can define the display dev kit not in the board list * Defalult pin list for non display dev kit: * Arduino Nano, Micro and more: CS: 9, DC: 8, RST: 7, BL: 6, SCK: 13, MOSI: 11, MISO: 12 * ESP32 various dev board : CS: 5, DC: 27, RST: 33, BL: 22, SCK: 18, MOSI: 23, MISO: nil * ESP32-C3 various dev board : CS: 7, DC: 2, RST: 1, BL: 3, SCK: 4, MOSI: 6, MISO: nil * ESP32-S2 various dev board : CS: 34, DC: 38, RST: 33, BL: 21, SCK: 36, MOSI: 35, MISO: nil * ESP32-S3 various dev board : CS: 40, DC: 41, RST: 42, BL: 48, SCK: 36, MOSI: 35, MISO: nil * ESP8266 various dev board : CS: 15, DC: 4, RST: 2, BL: 5, SCK: 14, MOSI: 13, MISO: 12 * Raspberry Pi Pico dev board : CS: 17, DC: 27, RST: 26, BL: 28, SCK: 18, MOSI: 19, MISO: 16 * RTL8720 BW16 old patch core : CS: 18, DC: 17, RST: 2, BL: 23, SCK: 19, MOSI: 21, MISO: 20 * RTL8720_BW16 Official core : CS: 9, DC: 8, RST: 6, BL: 3, SCK: 10, MOSI: 12, MISO: 11 * RTL8722 dev board : CS: 18, DC: 17, RST: 22, BL: 23, SCK: 13, MOSI: 11, MISO: 12 * RTL8722_mini dev board : CS: 12, DC: 14, RST: 15, BL: 13, SCK: 11, MOSI: 9, MISO: 10 * Seeeduino XIAO dev board : CS: 3, DC: 2, RST: 1, BL: 0, SCK: 8, MOSI: 10, MISO: 9 * Teensy 4.1 dev board : CS: 39, DC: 41, RST: 40, BL: 22, SCK: 13, MOSI: 11, MISO: 12 ******************************************************************************/ #include #define GFX_BL DF_GFX_BL // default backlight pin, you may replace DF_GFX_BL to actual backlight pin /* More dev device declaration: https://github.com/moononournation/Arduino_GFX/wiki/Dev-Device-Declaration */ #if defined(DISPLAY_DEV_KIT) Arduino_GFX *gfx = create_default_Arduino_GFX(); #else /* !defined(DISPLAY_DEV_KIT) */ /* More data bus class: https://github.com/moononournation/Arduino_GFX/wiki/Data-Bus-Class */ // Arduino_DataBus *bus = create_default_Arduino_DataBus(); /* More display class: https://github.com/moononournation/Arduino_GFX/wiki/Display-Class */ // Arduino_GFX *gfx = new Arduino_ILI9341(bus, DF_GFX_RST, 0 /* rotation */, false /* IPS */); #define GFX_DEV_DEVICE JC3248W535 #define GFX_BL 1 Arduino_DataBus *bus = new Arduino_ESP32QSPI( 45 /* CS */, 47 /* SCK */, 21 /* D0 */, 48 /* D1 */, 40 /* D2 */, 39 /* D3 */); Arduino_GFX *g = new Arduino_AXS15231B(bus, GFX_NOT_DEFINED /* RST */, 2 /* rotation */, false /* IPS */, DISPLAY_WIDTH, DISPLAY_HEIGHT); #define CANVAS Arduino_Canvas *gfx = new Arduino_Canvas(DISPLAY_WIDTH, DISPLAY_HEIGHT, g, 0 /* output_x */, 0 /* output_y */, 0 /* rotation */); #endif /* !defined(DISPLAY_DEV_KIT) */ /******************************************************************************* * End of Arduino_GFX setting ******************************************************************************/ /******************************************************************************* * Please config the touch panel in touch.h ******************************************************************************/ #include "touch.h" uint32_t screenWidth; uint32_t screenHeight; uint32_t bufSize; lv_display_t *disp; lv_color_t *disp_draw_buf; #if LV_USE_LOG != 0 void my_print(lv_log_level_t level, const char *buf) { LV_UNUSED(level); Serial.println(buf); Serial.flush(); } #endif /* LVGL calls it when a rendered image needs to copied to the display*/ void my_disp_flush(lv_display_t *disp, const lv_area_t *area, uint8_t *px_map) { // log_i("x1:%dx%d x2:%dx%d", area->x1, area->y1, area->x2, area->y2); #ifndef DIRECT_MODE uint32_t w = lv_area_get_width(area); uint32_t h = lv_area_get_height(area); log_i("draw16bitRGBBitmap x1:%dx%d x2:%dx%d", area->x1, area->y1, w, h); gfx->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)px_map, w, h); #endif // #ifndef DIRECT_MODE /*Call it to tell LVGL you are ready*/ lv_disp_flush_ready(disp); } /*Read the touchpad*/ void my_touchpad_read(lv_indev_t *indev, lv_indev_data_t *data) { if (touch_has_signal()) { if (touch_touched()) { data->state = LV_INDEV_STATE_PRESSED; /*Set the coordinates*/ data->point.x = touch_last_x; data->point.y = touch_last_y; } else if (touch_released()) { data->state = LV_INDEV_STATE_RELEASED; } } else { data->state = LV_INDEV_STATE_RELEASED; } } void arduinoGFXSetup() { #ifdef GFX_EXTRA_PRE_INIT GFX_EXTRA_PRE_INIT(); #endif // Init Display if (!gfx->begin()) { Serial.println("gfx->begin() failed!"); } gfx->fillScreen(BLACK); // Backlight #ifdef GFX_BL // pinMode(GFX_BL, OUTPUT); // digitalWrite(GFX_BL, HIGH); // Use last PWM_CHANNEL for backlight #define PWM_CHANNEL_BCKL (SOC_LEDC_CHANNEL_NUM - 1) #define PWM_FREQ_BCKL 400 #define PWM_BITS_BCKL 8 #define PWM_MAX_BCKL ((1 << PWM_BITS_BCKL) - 1) pinMode(GFX_BL, OUTPUT); digitalWrite(GFX_BL, LOW); #if ESP_ARDUINO_VERSION_MAJOR >= 3 ledcAttach(GFX_BL, PWM_FREQ_BCKL, PWM_BITS_BCKL); #else ledcSetup(PWM_CHANNEL_BCKL, PWM_FREQ_BCKL, PWM_BITS_BCKL); ledcAttachPin(GFX_BL, PWM_CHANNEL_BCKL); #endif log_v("duty:%2f", duty); float duty = 0.5f; if (duty > 1.0f) duty = 1.0f; if (duty < 0.0f) duty = 0.0f; #if ESP_ARDUINO_VERSION_MAJOR >= 3 ledcWrite(GPIO_BCKL, duty * PWM_MAX_BCKL); #else ledcWrite(PWM_CHANNEL_BCKL, duty * PWM_MAX_BCKL); #endif #endif // Init touch device touch_init(gfx->width(), gfx->height(), gfx->getRotation()); lv_init(); /*Set a tick source so that LVGL will know how much time elapsed. */ /* register print function for debugging */ screenWidth = gfx->width(); screenHeight = gfx->height(); #ifdef DIRECT_MODE bufSize = screenWidth * screenHeight; #else bufSize = screenWidth * 40; #endif #ifdef ESP32 #if defined(DIRECT_MODE) && (defined(CANVAS) || defined(RGB_PANEL)) disp_draw_buf = (lv_color_t *)gfx->getFramebuffer(); #else // !(defined(DIRECT_MODE) && (defined(CANVAS) || defined(RGB_PANEL))) disp_draw_buf = (lv_color_t *)heap_caps_malloc(bufSize * 2, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT); if (!disp_draw_buf) { // remove MALLOC_CAP_INTERNAL flag try again disp_draw_buf = (lv_color_t *)heap_caps_malloc(bufSize * 2, MALLOC_CAP_8BIT); } #endif // !(defined(DIRECT_MODE) && (defined(CANVAS) || defined(RGB_PANEL))) #else // !ESP32 Serial.println("LVGL disp_draw_buf heap_caps_malloc failed! malloc again..."); disp_draw_buf = (lv_color_t *)malloc(bufSize * 2); #endif // !ESP32 if (!disp_draw_buf) { Serial.println("LVGL disp_draw_buf allocate failed!"); } else { disp = lv_display_create(screenWidth, screenHeight); lv_display_set_flush_cb(disp, my_disp_flush); #ifdef DIRECT_MODE lv_display_set_buffers(disp, disp_draw_buf, NULL, bufSize * 2, LV_DISPLAY_RENDER_MODE_DIRECT); #else lv_display_set_buffers(disp, disp_draw_buf, NULL, bufSize * 2, LV_DISPLAY_RENDER_MODE_PARTIAL); #endif /*Initialize the (dummy) input device driver*/ lv_indev_t *indev = lv_indev_create(); lv_indev_set_type(indev, LV_INDEV_TYPE_POINTER); /*Touchpad should have POINTER type*/ lv_indev_set_read_cb(indev, my_touchpad_read); } } void arduinoGFXLoop() { #ifdef DIRECT_MODE #if defined(CANVAS) || defined(RGB_PANEL) gfx->flush(); #else // !(defined(CANVAS) || defined(RGB_PANEL)) gfx->draw16bitRGBBitmap(0, 0, (uint16_t *)disp_draw_buf, screenWidth, screenHeight); #endif // !(defined(CANVAS) || defined(RGB_PANEL)) #else // !DIRECT_MODE #ifdef CANVAS gfx->flush(); #endif #endif // !DIRECT_MODE } #endif